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Artykuły w czasopismach na temat „Aerodynamic loads”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Tomasz Lusiak, Andrej Novak, Martin Bugaj, and Radovan Madlenak. "Assessment of Impact of Aerodynamic Loads on the Stability and Control of the Gyrocopter Model." Communications - Scientific letters of the University of Zilina 22, no. 4 (2020): 63–69. http://dx.doi.org/10.26552/com.c.2020.4.63-69.

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Aerodynamic modelling currently relates to development of mathematical models to describe the aerodynamic forces and moments acting on the aircraft. It is a challenging part of aerodynamics that defines a comprehensive approach to using traditional methods and modern techniques to obtain relevant data. The most complicated task for the aerodynamics and flight dynamics is definition, computation and quantification of the aerodynamic description of an object. This paper presents how to determine the aerodynamic load on a gyrocopter and defines the effect on its stability and control. The first s

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Enciu, K., and A. Rosen. "Aerodynamic modelling of fin stabilised underslung loads." Aeronautical Journal 119, no. 1219 (2015): 1073–103. http://dx.doi.org/10.1017/s0001924000011143.

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AbstractBox-like slung loads exhibit periodic yaw response instabilities, while carried externally by a helicopter. When coupled with the slung load longitudinal and lateral pendulum motions, these instabilities result in significant pendulum oscillations of the load. High amplitude oscillations lead in many cases to the limiting of a load’s flight envelope. Using wind tunnel and flight tests, rear mounted fins were previously demonstrated as efficient means for stabilisation of a problematic load. However, the lack of a proper analytical model of the stabilised load’s aerodynamic characterist

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Abhilash and Joseph Jikhil. "Building Aerodynamics and Shape Optimisation." Journal of Sustainable Construction Engineering and Project Management 6, no. 2 (2023): 1–16. https://doi.org/10.5281/zenodo.7935492.

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<em>This study   is based on the topic building aerodynamics and shape optimization. Usually, the aerodynamic considerations are not taken into account while designing the external shape and orientation of building. The main considerations are architectural considerations, functional requirements and site limitations. As a result, the structures become bluff bodies with strong wind-structure interaction produced loads. These can be reduced by using aerodynamic mitigation techniques and shape optimization procedure. This report reviews the old/recent work on aerodynamic mitigation tec

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4

Perez-Becker, Sebastian, Francesco Papi, Joseph Saverin, David Marten, Alessandro Bianchini, and Christian Oliver Paschereit. "Is the Blade Element Momentum theory overestimating wind turbine loads? – An aeroelastic comparison between OpenFAST's AeroDyn and QBlade's Lifting-Line Free Vortex Wake method." Wind Energy Science 5, no. 2 (2020): 721–43. http://dx.doi.org/10.5194/wes-5-721-2020.

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Abstract. Load calculations play a key role in determining the design loads of different wind turbine components. To obtain the aerodynamic loads for these calculations, the industry relies heavily on the Blade Element Momentum (BEM) theory. BEM methods use several engineering correction models to capture the aerodynamic phenomena present in Design Load Cases (DLCs) with turbulent wind. Because of this, BEM methods can overestimate aerodynamic loads under challenging conditions when compared to higher-order aerodynamic methods – such as the Lifting-Line Free Vortex Wake (LLFVW) method – leadin

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Tian, Xiao, Wenhui Yan, and Kun Zhang. "Numerical Calculation of 1P Aerodynamic Loads on Aviation Propellers." Journal of Physics: Conference Series 2747, no. 1 (2024): 012043. http://dx.doi.org/10.1088/1742-6596/2747/1/012043.

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Abstract To accurately predict the 1P aerodynamic loads of aviation propellers, this paper established a mathematical model of aviation propeller 1P aerodynamic loads based on the coupling method of blade element theory and momentum theory. Correction methods such as the Prandtl tip correction method and the propeller root correction method were implemented to further improve calculation accuracy. A 1P aerodynamic load calculation procedure was developed based on the mathematical model by using the Matlab software. 1P aerodynamic loads of a three-blade propeller were predicted for three differ

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6

Jiao, Shuaike, and Jiahong Zheng. "Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors." Sensors 25, no. 6 (2025): 1911. https://doi.org/10.3390/s25061911.

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The acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects. However, at present, aerodynamic loads on rotors are primarily obtained through theoretical calculations, simulation analysis, and wind tunnel tests, with few reports on flight measurements. This paper proposes a method for obtaining helicopter rotor aerodynamic loads by flapping moment measurements in flight with strain gauge sensors. First, strain gauge sensors are installed at different cross-sectional positions o

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7

Li, Tian, Yifan Li, Lai Wei, and Jiye Zhang. "Study on Lateral Vibration of Tail Coach for High-Speed Train under Unsteady Aerodynamic Loads." Vibration 6, no. 4 (2023): 1048–59. http://dx.doi.org/10.3390/vibration6040061.

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As the speed of high-speed trains increases, the vehicle’s lateral stability steadily deteriorates. There have been observations of abnormal vibrations in the tail car, particularly on certain sections of the railway line. This study built a high-speed train aerodynamic simulation model for a three-car consist, and a multibody dynamics simulation model for an eight-car consist based on numerical simulations of train aerodynamics and multibody dynamics. It investigated both steady and unsteady aerodynamic loads, flow field characteristics, and the dynamic performance of vehicles under varied ae

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Zhang, Xuyao, Congxin Yang, and Shoutu Li. "Influence of the Heights of Low-Level Jets on Power and Aerodynamic Loads of a Horizontal Axis Wind Turbine Rotor." Atmosphere 10, no. 3 (2019): 132. http://dx.doi.org/10.3390/atmos10030132.

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The influence of the heights of low-level jets (LLJs) on the rotor power and aerodynamic loads of a horizontal axis wind turbine were investigated using the fatigue, aerodynamics, structures, and turbulence code. The LLJ and shear inflow wind fields were generated using an existing wind speed spectral model. We found that the rotor power predicted by the average wind speed of the hub height is higher than the actual power in relatively weak and shallow LLJ inflow conditions, especially when the LLJ height is located inside the rotor-swept area. In terms of aerodynamic loads, when the LLJ heigh

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9

Xiang, Xiao Jun, and Yu Qian. "Numerical Simulation of Unsteady Aerodynamic Loads over an Aircraft." Advanced Materials Research 908 (March 2014): 264–68. http://dx.doi.org/10.4028/www.scientific.net/amr.908.264.

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The unsteady aerodynamic loads are the basic of the aeroelastic. This paper focuses on the computation of the unsteady aerodynamic loads for forced periodic motions under different Mach numbers. The flow is modeled using the Euler equations and an unsteady time-domain solver is used for the computation of aerodynamic loads for forced periodic motions. The Euler equations are discretized on curvilinear multi-block body conforming girds using a cell-centred finite volume method. The implicit dual-time method proposed by Jameson is used for time-accurate calculations. Rigid body motions were trea

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10

Anil, Mary, and Deepa Varkey. "Recent Progress in Aerodynamics for Aeroelastic Analysis." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 2890–93. http://dx.doi.org/10.22214/ijraset.2022.44475.

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Abstract: Aerodynamics has gained considerable popularity in the aerospace industry. Based on the characteristics of a structure, aerodynamic behavior varies from structure to structure. A reliable aeroelastic analysis requires accurate capture of aerodynamic forces. To produce accurate aerodynamic loads, it is necessary to develop an appropriate aerodynamic model. A review of various approaches to aerodynamic modeling for aeroelastic analysis of diverse wing configurations is presented in this paper. The study covers a wide range of finite element software platforms used in the aeroelastic an

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11

Li, Yun Feng. "Loads Calculation of Pitch Bearing of Wind Turbine." Advanced Materials Research 148-149 (October 2010): 479–84. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.479.

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Loads calculation process for pitch bearing of wind turbine was presented. The aerodynamic of the rotor was analyzed by using momentum theory and blade element theory firstly; then the aerodynamic loads, the gravitational loads and the centrifugal loads of the pitch bearing were calculated along each axis of the bearing coordinate system; thirdly, all the loads of each direction of the pitch bearing load were composed into three loads, they are radial, axial and tilting moment loads. A calculation example was given at last.

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12

He, Pan, and Jian Xia. "Study on the Influence of Low-Level Jet on the Aerodynamic Characteristics of Horizontal Axis Wind Turbine Rotor Based on the Aerodynamics–Controller Interaction Method." Energies 15, no. 8 (2022): 2709. http://dx.doi.org/10.3390/en15082709.

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Accurate prediction of the aerodynamic characteristics of wind rotors subjected to various wind profiles is of considerable importance in the aerodynamics and structural design of wind turbines. As a very complex atmospheric phenomenon, the impact of a low-level jet (LLJ) on the aerodynamic characteristics of wind rotors is becoming more and more significant with the increase in wind turbine height. Additionally, during calculating the aerodynamic characteristics of the wind rotor, the known wind speed, rotor speed, and blade-pitch angle are generally required. However, when the wind profile i

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13

Liu, Jun, Zhengqi Gu, Taiming Huang, Shuya Li, Ledian Zheng, and Kai Sun. "Coupled analysis of the unsteady aerodynamics and multi-body dynamics of a small car overtaking a coach." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 14 (2019): 3684–99. http://dx.doi.org/10.1177/0954407019831559.

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The severe additional aerodynamic loads that are generated on a small car when overtaking a coach have an adverse effect on the car handling stability and its safety. In this article, a two-way coupling of the unsteady aerodynamics and multi-body dynamics is performed in order to study the mutual interactions of a car in an overtaking maneuver with a coach. The unsteady aerodynamic interactions are obtained by using SST (Menter) K-Omega Detached Eddy Simulation and overset mesh technology. The aerodynamics couple the multi-body dynamics, taking into account the effects of the transverse spacin

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14

Zeng, Xiaohui, Han Wu, Jiang Lai, and Hongzhi Sheng. "Hunting stability of high-speed railway vehicles on a curved track considering the effects of steady aerodynamic loads." Journal of Vibration and Control 22, no. 20 (2016): 4159–75. http://dx.doi.org/10.1177/1077546315571986.

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Aerodynamic loads may have effects on the hunting stability, and the factor of curved track makes it more complicated. Therefore, considering the steady aerodynamic loads generated by crosswind and airflow in the opposite advancing direction of train, the hunting stability of high-speed railway vehicle on a curved track is studied in this paper. The changes of gravitational restoring force and creep coefficients which are caused by aerodynamic loads are considered, and the change of equilibrium position due to aerodynamic loads, centrifugal force and the factor of curved track is also in consi

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15

Srivastava, Nilabh, Peter T. Tkacik, and Russell G. Keanini. "Ascending rockets as macroscopic self-propelled Brownian oscillators." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468, no. 2148 (2012): 3965–94. http://dx.doi.org/10.1098/rspa.2012.0273.

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High-fidelity numerical experiments and theoretical modelling are used to study the dynamics of a sounding-rocket-scale rocket, subject to altitude-dependent random wind and nozzle side loads and deterministic aerodynamic loading. This paper completes a series of studies that showed that Ornstein–Uhlenbeck (OU) rotational dynamics arise when random nozzle side loads dominate wind and aerodynamic loading. In contrast to the earlier work, this paper elucidates that under conditions where aerodynamic, wind and nozzle side loads are comparable, the rocket behaves as stochastic Brownian oscillator.

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Lai, Yung-Cheng (Rex), and Christopher P. L. Barkan. "Options for Improving the Energy Efficiency of Intermodal Freight Trains." Transportation Research Record: Journal of the Transportation Research Board 1916, no. 1 (2005): 47–55. http://dx.doi.org/10.1177/0361198105191600108.

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Intermodal trains are typically the fastest trains operated by North American freight railroads. Ironically, these trains tend to have the poorest aerodynamic characteristics. Because of constraints imposed by equipment design and diversity, intermodal trains incur greater aerodynamic penalties and increased fuel consumption than other trains. Improving the loading patterns of intermodal trains has the potential to improve aerodynamic characteristics and thus fuel efficiency. Train aerodynamics and resistance analyses were conducted on several alternative intermodal train-loading configuration

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17

Qian, Yu, Jun Li Yang, Xiao Jun Xiang, and Ming Qiang Chen. "Numerical Simulation of Unsteady Aerodynamic Loads over an Aerofoil in Transonic Flow." Advanced Materials Research 644 (January 2013): 275–78. http://dx.doi.org/10.4028/www.scientific.net/amr.644.275.

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The unsteady aerodynamic loads are the basic of the aeroelasitc. This paper focuses on the computation of the unsteady aerodynamic loads for forced periodic motions under high subsonic Mach numbers. The flow is modeled using the Euler equations and an unsteady time-domain solver is used for the computation of aerodynamic loads for forced periodic motions. The Euler equations are discretized on curvilinear multi-block body conforming girds using a cell-centred finite volume method. The implicit dual-time method proposed by Jameson is used for time-accurate calculations. Rigid body motions were

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18

Zeng, Xiao-Hui, Jiang Lai, and Han Wu. "Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads." International Journal of Structural Stability and Dynamics 18, no. 07 (2018): 1850093. http://dx.doi.org/10.1142/s0219455418500931.

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With the rising speed of high-speed trains, the aerodynamic loads become more significant and their influences on the hunting stability of railway vehicles deserve to be considered. Such an effect cannot be properly considered by the conventional model of hunting stability analysis. To this end, the linear hunting stability of high-speed railway vehicles running on tangent tracks is studied. A model considering the steady aerodynamic loads due to the joint action of the airflow facing the moving train and the crosswind, is proposed for the hunting stability analysis of a railway vehicle with 1

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Niven, A. J., and S. W. Tait. "A new approach to the third order calibration of internal strain gauge balances used for aerodynamic load measurement." Aeronautical Journal 104, no. 1041 (2000): 501–8. http://dx.doi.org/10.1017/s0001924000017875.

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Abstract With respect to wind tunnel aerodynamic load measurement, an internal strain gauge balance (often referred to as a sting balance) is essentially a compact load cell designed to fit within a cavity of the aerodynamic body and form a link between the model and a fixed ground point via a sting support system. The structure of an internal strain gauge balance is designed to incorporate a series of planar surfaces such that the deflection of each surface is predominantly induced by a unique aerodynamic load. Strain gauges, mounted on groups of surfaces in a Wheatstone bridge arrangement pr

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Zhang, Hui, Jie Li, and Qiong Liu. "Flight Loads Analysis of a Maneuvering Transport Aircraft." Advanced Materials Research 1016 (August 2014): 460–64. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.460.

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The paper provides a method applicable for the determination of flight loads for maneuvering aircraft, in which aerodynamic loads are calculated based on doublet lattice method, which contains three primary steps. Firstly, non-dimensional stability and control derivative coefficients are obtained through solving unsteady aerodynamics in subsonic flow based on a doublet lattice technical. These stability and control derivative coefficients are used in second step. Secondly, the simulation of aircraft dynamic maneuvers is completed utilizing fourth order Runge-Kutta method to solve motion equati

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ABUMERE, AKHANOLU, and EIZIELEN AHIANBA JOSEPH. "THE RELEVANCE OF AERODYNAMICS IN ARCHITECTURE." FAR Journal of Arts, Humanities and Social Studies (FARJAHSS) 2, no. 3 (2025): 16–17. https://doi.org/10.5281/zenodo.15480265.

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Aerodynamics plays a crucial role in shaping the architectural design, improving and influencing the performance, sustainability and functionality of buildings and structures. By understanding air-flow patterns, wind loads and pressure distribution around structures, architects and structural engineers can create buildings that are not only aesthetically-pleasing but also functional, efficient and resilient. The relevance of aerodynamics in architecture is multifaceted. It deals with the design of building shapes, orientations and layouts to minimize wind-induced loads, reduce energy consumpti

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Yin, F. F., J. J. Chen, X. K. Li, et al. "A blade element momentum model for dual-rotor wind turbines considering inter-rotor velocity interferences." Journal of Physics: Conference Series 2265, no. 4 (2022): 042058. http://dx.doi.org/10.1088/1742-6596/2265/4/042058.

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Abstract A blade element momentum model for predicting the aerodynamic performance of dual-rotor wind turbines (DRWTs) as an aerodynamic design tool is introduced in this paper. The model considers the inter-rotor axial velocity reduction and the tangential velocity components in the front rotor’s wake to model the inter-rotor velocity interferences for the inflow velocity as the input of the BEM theory. A DRWT with two NREL 5MW rotors is studied using the present model and CFD simulations. Results from the two methods show good agreements with each other in the trends of power, thrust, and ae

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Fontanella, A., A. Facchinetti, and M. Belloli. "Wind tunnel hardware-in-the-loop experiments about the global response of a 15 MW floating wind turbine." Journal of Physics: Conference Series 2626, no. 1 (2023): 012059. http://dx.doi.org/10.1088/1742-6596/2626/1/012059.

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Abstract This work describes a new wind tunnel hybrid experiment investigating the aerodynamics and the global response of a 15 MW floating wind turbine. The floater motion is realized with a 6-degrees-of-freedom robotic platform controlled with a hardware-in-the-loop system, in which aerodynamic forces developed by the turbine model are the input of a numerical simulation of the floater dynamics, hydrodynamic excitation, and mooring. It is shown that accuracy of the aerodynamic force feedback from the wind turbine is critical to reproduce the floating wind turbine motion, and measurement of a

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Gennaretti, M., and C. Ponzi. "Finite-state aerodynamic modelling for gust load alleviation of wing–tail configurations." Aeronautical Journal 103, no. 1021 (1999): 147–58. http://dx.doi.org/10.1017/s0001924000064964.

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Abstract A finite-state aerodynamics methodology is proposed for the analysis of the forces generated by a gust. To illustrate and assess the methodology, gust-response and gust-alleviation applications are included. Finite-state aerodynamics denotes a technique to approximate aerodynamic loads so as to yield an aircraft model of the type ẋ = Ax + Bu (state-space formulation). In this paper, a finite-state formulation is proposed to include the presence of a gust. The aerodynamic loads to be approximated are evaluated here by using a frequency-domain boundary-element formulation; the flow is a

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Vorobyev, A. A., Y. S. Vatulin, and E. Yu Chistyakov. "Evaluation of stability of high-speed rolling stock on viaducts under increased peak wind load." BRIСS Transport 4, no. 1 (2025): 3. https://doi.org/10.46684/2025.1.3.

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The authors have performed the numerical modelling of aerodynamic loads on a high-speed train running on a viaduct and evaluated the stability of a train based on the minimum load pressure on the wheel under the combined effects of crosswind and inertial air pressure (known as drift). The distribution of air pressure on the surface of train body elements in areas of overpressure and rarefaction was mapped out. The study has identifi ed the combinations of aerodynamic impacts under which the loads on bogie wheels may decrease to unacceptable levels and established the maximum speed limits for v

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Gennaretti, M., and G. Bernardini. "Aeroelastic response of helicopter rotors using a 3D unsteady aerodynamic solver." Aeronautical Journal 110, no. 1114 (2006): 793–801. http://dx.doi.org/10.1017/s0001924000001664.

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The prediction of blade deflections and vibratory hub loads concerning helicopter main rotors in forward flight is the objective of this work. They are determined by using an aeroelastic model derived through the coupling between a nonlinear blade structural model and a boundary integral equation solver for three-dimensional, unsteady, potential aerodynamics. The Galerkin method is used for the spatial integration, whereas the periodic blade response is determined by a harmonic balance approach. This aeroelastic model yields a unified approach for aeroelastic response and blade pressure predic

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Martín-San-Román, Raquel, Jon Cerrada-Garcés, Guillén Campaña-Alonso, Beatriz Méndez-López, José Azcona-Armendáriz, and Alvaro Cuerva-Tejero. "Assessment of the azimuthal loads variation by a bi-rotor configuration." Journal of Physics: Conference Series 2767, no. 2 (2024): 022015. http://dx.doi.org/10.1088/1742-6596/2767/2/022015.

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Abstract Multi wind turbine configurations are emerging in the offshore wind energy market. The modelling of the aerodynamics of these systems is challenging, due to the small lateral distance between rotors and the subsequent interaction between wakes. Previous analysis in the literature showed that, due to this interaction, multi wind turbine concepts present the advantage of an increment in power production, if the rotors are laterally aligned. However, the counterpart in the variation of the blade loads throughout the revolution, has yet to be analysed in depth. This study focuses on the d

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Ma, Kaichao, Changhong Tang, Jianye Zhang, Xiaofei Niu, and Qingzhi Fan. "Flight Load Design of Nacelle of Carrier-Based Propeller Transport Aircraft." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, no. 6 (2020): 1249–56. http://dx.doi.org/10.1051/jnwpu/20203861249.

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The carrier-based propeller transport aircraft has a compact layout, where the large nacelle in size and weight is sensitive to propeller slipstream, and thus calls for sophisticated flight load design studies, which are still insufficient considering domestic experience. In detail, the design methods on aerodynamic load, inertial load, gyrostatic moment, as well as studies on design criteria and maneuver simulation technology are shown for a reference aircraft. The design range applied to this nacelle's flight load is firstly determined by understanding and selecting the design criteria. The

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Fang, Shengyong, Sheng Zhang, Jinlong Zhou, and Weidong Yang. "A High-Efficient Modeling Method for Aerodynamic Loads of an Airfoil with Active Leading Edge Based on RFA and CFD." Aerospace 12, no. 7 (2025): 632. https://doi.org/10.3390/aerospace12070632.

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For the airfoil in freestream, the pressure difference between the upper and lower surfaces and the variations in pressure gradients are significant at its leading edge area. Under reasonable deflections, the active leading edge can effectively change airfoil aerodynamic loads, which helps to improve the rotor aerodynamic performance. In this paper, a modeling method for an airfoil with an active leading edge was developed to calculate its aerodynamic loads. The pitch motion of the rotor blade and the leading edge deflections were taken into account. Firstly, simulations of steady and unsteady

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Abedi, Hamidreza, and Claes Eskilsson. "Wind Turbine Aerodynamics Simulation Using the Spectral/hp Element Framework Nektar++." Wind 5, no. 1 (2025): 6. https://doi.org/10.3390/wind5010006.

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Wind power plays an increasingly vital role in sustainable energy development. However, accurately simulating wind turbine aerodynamics, particularly in offshore wind farms, remains challenging due to complex environmental factors such as the marine atmospheric boundary layer. This study investigates the integration and assessment of the Actuator Line Model (ALM) within the high-order spectral/hp element framework, Nektar++, for wind turbine aerodynamic simulations. The primary objective is to evaluate the implementation and effectiveness of the ALM by analyzing aerodynamic loads, wake behavio

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Elangovan, Karthikvel, and S. Nadaraja Pillai. "Effect of Pitch Angle on Structural and Aerodynamic Characteristics of Vertical-Axis Wind Turbines (VAWTs) Using Leading-Edge Protuberance Blades." Energies 18, no. 2 (2025): 286. https://doi.org/10.3390/en18020286.

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An experimental investigation was carried out to understand the effects of LEP (leading-edge protuberance) blades on the structural characteristics of VAWTs. A series of experiments were performed on VAWTs with straight and LEP blades for a wide range of wind velocity (6 m/s to 20 m/s) and pitch angles (−20° to 20°), and the structural excitations on the VAWT structure were measured using a triaxial accelerometer in each case. The raw acceleration data were extensively processed in the time and frequency domains to identify the variation in structural excitation caused by the unsteady wind and

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Pei, Xi, Min Xu, and Dong Guo. "Aeroelastic-Acoustics Numerical Simulation Research." Applied Mechanics and Materials 226-228 (November 2012): 500–504. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.500.

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The generation of aerodynamic noise of aircraft in flight is due to dynamical system and aerodynamic .The response of aircraft subjected to High acoustic loads and aerodynamic loads can produce fatigue and damage. In this paper a new Aeroelastic- Acoustics which adds acoustic loads in aeroelastic is presented. The emphasis of the study is the discipline of displacement and load of the flexible structure under the unsteady aerodynamic, inertial, elastic and aero-acoustic. The CFD/CSD/CAA coupling is used to simulate rockets cabin. Sound generated by a rocker is predicted numerically from a Larg

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Amrutheswara Krishnamurthy and Dr.Suresh Nagesh. "Aerodynamic Effect on Stability and Lift Characteristics of an Elevated Sedan Car." ARAI Journal of Mobility Technology 2, no. 2 (2022): 205–13. http://dx.doi.org/10.37285/ajmt.1.2.6.

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There is a strong interaction between air and vehicle components. Aerodynamics plays a significant role in a vehicle's fuel efficiency. The contact patch load between the tire and road is directly related to the vehicle load. In this research, the lift forces generated due to the additional wing attached to the car model with different spans and heights of the wing location from the car body is considered for study. The loads due to change in Angle of Attack (AOA) and their effect on the tire loads are studied. The upward vertical force produced from aerodynamic loads reduces the wheel load of

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Petrone, Nicola, Matteo Capuzzo, Erik De Paoli, and Nicola Biliato. "The Measurement of Aerodynamic Loads using Dynamometric Load Cells." ATZautotechnology 4, no. 3 (2004): 56–59. http://dx.doi.org/10.1007/bf03246829.

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Cicolani, L. S., J. G. A. da Silva, E. P. N. Duque, and M. B. Tischler. "Unsteady aerodynamic model of a cargo container for slung-load simulation." Aeronautical Journal 108, no. 1085 (2004): 357–68. http://dx.doi.org/10.1017/s0001924000005170.

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Abstract The problem of simulation models capable of predicting the aerodynamic instability of helicopter slung-load cargo containers and bluff bodies is addressed. Instability for these loads is known to depend on unsteady frequency-dependent aerodynamics, but simulation models that include the unsteady aerodynamics do not currently exist. This paper presents a method for generating such models using computational fluid dynamics (CFD) to generate forced-oscillation aerodynamic data and frequency domain system identification techniques to generate a frequency response from the CFD data and to

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36

Schulz, Christian W., Umut Özinan, Stefan Netzband, Po Wen Cheng, and Moustafa Abdel-Maksoud. "The Impact of Unsteadiness on the Aerodynamic Loads of a Floating Offshore Wind Turbine." Journal of Physics: Conference Series 2626, no. 1 (2023): 012064. http://dx.doi.org/10.1088/1742-6596/2626/1/012064.

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Abstract The role of unsteadiness in the aerodynamics of Floating Offshore Wind Turbines (FOWT) remains a subject of discussion among the research community. Therefore, it must be investigated whether and to what extent transient aerodynamic phenomena impact the loads of a wind turbine rotor undergoing motions in unsteady winds. The study of transient aerodynamic phenomena is closely linked to the question of whether the modern Blade Element Momentum Theory (BEMT) methods can be considered reliable for the simulation of FOWTs. In this work, investigations are carried out to identify the releva

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Xie, Yonghui, Kun Lu, Le Liu, and Gongnan Xie. "Fluid-Thermal-Structural Coupled Analysis of a Radial Inflow Micro Gas Turbine Using Computational Fluid Dynamics and Computational Solid Mechanics." Mathematical Problems in Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/640560.

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A three-dimensional fluid-thermal-structural coupled analysis for a radial inflow micro gas turbine is conducted. First, a fluid-thermal coupled analysis of the flow and temperature fields of the nozzle passage and the blade passage is performed by using computational fluid dynamics (CFD). The flow and heat transfer characteristics of different sections are analyzed in detail. The thermal load and the aerodynamic load are then obtained from the temperature field and the pressure distribution. The stress distributions of the blade are finally studied by using computational solid mechanics (CSM)

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Huang, Taiming, Zhengqi Gu, Chengjie Feng, and Wei Zeng. "Transient aerodynamics simulations of a road vehicle in the crosswind condition coupled with the vehicle’s motion." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 5 (2017): 583–98. http://dx.doi.org/10.1177/0954407017704609.

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The influence of transient aerodynamics on a vehicle in a crosswind and the effect on the vehicle’s motion are investigated by employing fully coupled simulations. The fully coupled method makes the simulation data on the fluid dynamics and on the vehicle dynamics exchange in time. LES are used to investigate the movement of the transient turbulence, and wind tunnel experiments are carried out to validate the numerical method. The vehicle is simplified as a three-degree-of-freedom system which moves in only the horizontal direction. The driver’s reaction is considered when the motion of the ve

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Zyl, L. H. van. "2D and 3D low frequency aerodynamics." Aeronautical Journal 112, no. 1136 (2008): 609–12. http://dx.doi.org/10.1017/s0001924000002578.

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Abstract Unsteady aerodynamic loads on aircraft configurations are used for aeroelastic or flight dynamic analyses. The sources for deriving these loads include strip theory aerodynamics and three-dimensional panel methods. In some applications the behaviour of the unsteady air loads as the frequency approaches zero is important, and it is well known that the behaviour of strip theory aerodynamics employing the exact circulation function differs qualitatively from that of the three-dimensional panel methods such as the subsonic doublet lattice method (DLM). Theoretical results from an earlier

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Sakib, Mohammad Sadman, and D. Todd Griffith. "Parked and operating load analysis in the aerodynamic design of multi-megawatt-scale floating vertical-axis wind turbines." Wind Energy Science 7, no. 2 (2022): 677–96. http://dx.doi.org/10.5194/wes-7-677-2022.

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Abstract. A good understanding of aerodynamic loading is essential in the design of vertical-axis wind turbines (VAWTs) to properly capture design loads and to estimate the power production. This paper presents a comprehensive aerodynamic design study for a 5 MW Darrieus offshore VAWT in the context of multi-megawatt floating VAWTs. This study systematically analyzes the effect of different, important design variables including the number of blades, aspect ratio and blade tapering in a comprehensive load analysis of both the parked and operating aerodynamic loads including turbine power perfor

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Lu, Yaohui, Dewen Zhang, Heyan Zheng, et al. "Analysis of the aerodynamic pressure effect on the fatigue strength of the carbody of high-speed trains passing by each other in a tunnel." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 8 (2018): 783–801. http://dx.doi.org/10.1177/0954409718809469.

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When two high-speed trains pass through a tunnel, the aerodynamic changes are more complex and drastic than in open air owing to the interference of the tunnel wall and the entry effect. The impact on the carbody fatigue strength is very significant in the fatigue reliability design of the carbody. In this paper, the sequential coupling method was used for the first time to study the effect of pressure waves on the fatigue strength in a large-scale and complex carbody structure. The computational fluid dynamics method was used to calculate and analyze the aerodynamic pressure wave of the inter

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Shen, Xin, Ping Hu, Jinge Chen, Xiaocheng Zhu, and Zhaohui Du. "The unsteady aerodynamics of floating wind turbine under platform pitch motion." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 8 (2018): 1019–36. http://dx.doi.org/10.1177/0957650918766606.

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The aerodynamic performance of floating platform wind turbines is much more complex than fixed-base wind turbines because of the flexibility of the floating platform. Due to the extra six degrees-of-freedom of the floating platform, the inflow of the wind turbine rotors is highly influenced by the motions of the floating platform. It is therefore of interest to study the unsteady aerodynamics of the wind turbine rotors involved with the interaction of the floating platform induced motions. In the present work, a lifting surface method with a free wake model is developed for analysis of the uns

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Manh, Nguyen Van. "Development of Numerical Methods for Modeling Aerodynamic Forces on Turbine Blades." System Analysis & Mathematical Modeling 6, no. 4 (2024): 426–37. https://doi.org/10.17150/2713-1734.2024.6(4).426-437.

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In operation, the flow of gas to the working blades is not stationary due to the existence of an edge trace when the gas flow passes through the inter-blade channels of the guide vanes. This causes a variable aerodynamic force, which is periodically repeated with high frequency. In addition, the aerodynamic loads on the working blades are not evenly distributed since the aerodynamic profile of the blade varies along the length of the blade. All these values cause the complexity of mathematical modeling of aerodynamic forces and the assessment of their effect on the dynamic and strength charact

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Silva, Adriana Correia da, and Michael Muskulus. "VAWT support structure mass sensitivity due to aerodynamic load scaling." Journal of Physics: Conference Series 2626, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2626/1/012003.

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Abstract The X-rotor wind turbine is an X-shaped hybrid vertical axis wind turbine whose power take-off is done by horizontal axis rotors located at the tip of the lower blades. Based on an initial basic study, the present study developed a preliminary jacket design as the turbine support structure. Steady aerodynamic loads were obtained from an actuator cylinder model and dynamic load simulations including wave loads were performed. The structure was checked according to fatigue damage and maximum yielding for representative site-specific load cases for fatigue and ultimate limit states. Even

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Da, Silva Adriana Correia, and Michael Muskulus. "VAWT support structure mass sensitivity due to aerodynamic load scaling." Journal of Physics: Conference Series 2626 (June 5, 2023): 10 / 012003. https://doi.org/10.1088/1742-6596/2626/1/012003.

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The X-rotor wind turbine is an X-shaped hybrid vertical axis wind turbine whose power take-off is done by horizontal axis rotors located at the tip of the lower blades. Based on an initial basic study, the present study developed a preliminary jacket design as the turbine support structure. Steady aerodynamic loads were obtained from an actuator cylinder model and dynamic load simulations including wave loads were performed. The structure was checked according to fatigue damage and maximum yielding for representative site-specific load cases for fatigue and ultimate limit states. Even though t

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46

Kowaleczko, Grzegorz, and Andrzej Leśniczak. "Modelling of Helicopter Main Rotor Aerodynamic Loads in Manoeuvres." Journal of KONES 26, no. 4 (2019): 273–84. http://dx.doi.org/10.2478/kones-2019-0118.

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AbstractThe article discusses the method of modelling of the helicopter main rotor aerodynamic loads during steady state flight and manoeuvres. The ability to determine these loads was created by taking into account the motion of each blade relative to the hinges and was a result of the applied method of aerodynamic loads calculating. The first part of the work discusses the basic relationships that were used to build the mathematical model of helicopter flight. The focus was also on the method of calculating of the aerodynamic forces generated by the rotor blades. The results of simulations d

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Ben Hassen, Mariem, Slim Ben-Elechi, and Hatem Mrad. "Crack Propagation in Axial-Flow Fan Blades Under Complex Loading Conditions: A FRANC3D and ABAQUS Co-Simulation Approach." Applied Sciences 15, no. 3 (2025): 1597. https://doi.org/10.3390/app15031597.

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Since fan blades are exposed to fatigue, and in some cases harsh loading conditions, they may exhibit fracture failures due to crack propagation, resulting in significant losses. Previous studies of crack propagation in blades are mainly confined to either simplified blade geometry or loads, resulting in a significant discrepancy between the simulated crack propagation and the real blade propagation behavior, while it is lacking for challenging shapes and loads. A co-simulation approach of FRANC3D and ABAQUS was developed to study the crack propagation of an axial-flow fan blade subjected to c

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48

Morales, Eduardo, Mario Chávez, Griselda Abarca, Yunuén López, Jesús Mares, and Juan Cruz. "Structural Study on the Impact of Aerodynamic Loads on Winglet Support Structures." International Journal of Engineering, Science and Information Technology 5, no. 3 (2025): 112–21. https://doi.org/10.52088/ijesty.v5i3.888.

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Aerodynamic spoilers are intended to reduce drag forces and generate lift on surfaces. However, dynamic operating conditions can affect their performance and that of their supporting structures. This study evaluates the impact of aerodynamic loads on a spoiler's supporting structure using fluid-structure interaction (FSI) analysis. Three NACA airfoil models were analyzed to benchmark their structural behavior. Simulations using Ansys® software modeled the spoiler's airflow-induced pressures and structural displacements, considering dynamic loads derived from a similarity study between a full-s

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H, Hanan, and Raiza Susan George. "Advancement of Aerodynamics in Flutter Characteristics of AGARD 445.6 Wing." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (2023): 488–91. http://dx.doi.org/10.22214/ijraset.2023.51513.

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Abstract: The aerospace sector has seen a significant prominence in the field of aerodynamics. Aerodynamic behaviour differs from one structure to the next depending on the specifics of each one. Due to flexible aeroplane structures, aeroelastic phenomena occur, when structural deformations alter aerodynamic forces. A feedback mechanism between the increased structural deformations and the added aerodynamic forces increases further aerodynamic loads. These interactions may diminish until they achieve an equilibrium state or, if resonance takes place, they may diverge drastically. The most chal

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Kim and Kwon. "Effect of Platform Motion on Aerodynamic Performance and Aeroelastic Behavior of Floating Offshore Wind Turbine Blades." Energies 12, no. 13 (2019): 2519. http://dx.doi.org/10.3390/en12132519.

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In the present study, a numerical framework for predicting the aerodynamic performance and the aeroelastic behavior of floating offshore wind turbine rotor blades involving platform motion was developed. For this purpose, the aerodynamic and structural analyses were conducted simultaneously in a tightly coupled manner by exchanging the information about the aerodynamic loads and the elastic blade deformations at every time step. The elastic behavior of the turbine rotor blades was described by adopting a structural model based on the Euler-Bernoulli beam. The aerodynamic loads by the rotor bla

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