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Relevant bibliographies by topics / Hydrodynamic formulation

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Academic literature on the topic 'Hydrodynamic formulation'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Hydrodynamic formulation"

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Smith, Arlynn W., and Kevin F. Brennan. "Comparison of Non-Parabolic Hydrodynamic Models Based On Different Band Structure Models." VLSI Design 6, no. 1-4 (1998): 177–80. http://dx.doi.org/10.1155/1998/71521.

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This paper presents two non-parabolic hydrodynamic model formulations suitable for the simulation of inhomogeneous semiconductor devices. The first formulation uses the Kane dispersion relationship, (ℏk)2/2m = W(1+αW). The second formulation makes use of a power law, (ℏk)2/2m = xWy, for the dispersion relation. The non-parabolicity and energy range of the hydrodynamic model based on the Kane dispersion relation is limited. The power law formulation produces closed form coefficients similar to those under the parabolic band approximation but the carrier concentration can deviate. An extended po

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Avital, E. J., M. Alonso, and V. Supontisky. "Computational aeroacoustics: The low speed jet." Aeronautical Journal 112, no. 1133 (2008): 405–14. http://dx.doi.org/10.1017/s0001924000002360.

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AbstractLow speed circular, elliptic and planar jets are investigated computationally for basic sound generation and hydrodynamics. The jets are assumed to be incompressible and are simulated using the large eddy simulation (LES) approach. The emitted sound is calculated using Lighthill’s acoustic analogy. Two formulations are used, Lighthill’s stress tensor formulation and Powell’s vortex sound formulation. A new boundary correction for Powell’s formulation is developed in order to account for the finite size of the computational domain. Low to moderate Reynolds number jets are simulated. Goo

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Sorek, Shaul, and Vyacheslav Borisov. "Modified Eulerian–Lagrangian formulation for hydrodynamic modeling." Journal of Computational Physics 231, no. 8 (2012): 3083–100. http://dx.doi.org/10.1016/j.jcp.2011.12.005.

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Isaacson, Michael. "Earthquake-induced hydrodynamic forces on reservoir roofs." Canadian Journal of Civil Engineering 37, no. 8 (2010): 1107–15. http://dx.doi.org/10.1139/l10-049.

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The present paper describes the hydrodynamic loads on the roof of a water-filled reservoir or storage tank due to earthquake-induced sloshing. Initially, the paper summarizes available solutions for the water surface elevation in a rectangular reservoir subjected to harmonic and earthquake base motions, and as well an available formulation for the force on the roof of a rectangular reservoir. With this background, a new formulation for the force on the roof is developed, and selected results based on this are presented. A recommended design procedure is thereby proposed, and an example applica

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Wang, Lian-Ping, Orlando Ayala, Scott E. Kasprzak, and Wojciech W. Grabowski. "Theoretical Formulation of Collision Rate and Collision Efficiency of Hydrodynamically Interacting Cloud Droplets in Turbulent Atmosphere." Journal of the Atmospheric Sciences 62, no. 7 (2005): 2433–50. http://dx.doi.org/10.1175/jas3492.1.

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Abstract A methodology for conducting direct numerical simulations (DNSs) of hydrodynamically interacting droplets in the context of cloud microphysics has been developed and used to validate a new kinematic formulation capable of describing the collision rate and collision efficiency of cloud droplets in turbulent air. The theoretical formulation is formally the same as the formulation recently developed for geometrical collision rate of finite-inertia, nonsettling particles. It is shown that its application to hydrodynamically interacting droplets requires corrections because of a nonoverlap

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Kerr, Daniel C., Neil Goldsman, and Isaak D. Mayergoyz. "Three-Dimensional Hydrodynamic Modeling of MOSFET Devices." VLSI Design 6, no. 1-4 (1998): 261–65. http://dx.doi.org/10.1155/1998/60859.

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The hydrodynamic (HD) model of semiconductor devices is solved numerically in three-dimensions (3-D) for the MOSFET device. The numerical instabilities of the HD model are analyzed to develop a stable discretization. The formulation is stabilized by using a new, higher-order discretization for the relaxation-time approximation (RTA) term of the energy-balance (EB) equation. The developed formulation is used to model the MOSFET.

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Burghardt, I., and L. S. Cederbaum. "Hydrodynamic equations for mixed quantum states. I. General formulation." Journal of Chemical Physics 115, no. 22 (2001): 10303. http://dx.doi.org/10.1063/1.1416493.

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Yang, Ciann-Dong. "A new hydrodynamic formulation of complex-valued quantum mechanics." Chaos, Solitons & Fractals 42, no. 1 (2009): 453–68. http://dx.doi.org/10.1016/j.chaos.2009.01.010.

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Lee, M., and Y. J. Cho. "On the migration of smooth particle hydrodynamic formulation in Cartesian coordinates to the axisymmetric formulation." Journal of Strain Analysis for Engineering Design 46, no. 8 (2011): 879–86. http://dx.doi.org/10.1177/0309324711409656.

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The smooth particle hydrodynamic (SPH) method has been extended for application to large deformation problems such as high velocity impacts by including the effect of material strength. This paper presents a simple modification of the kernel function that allows the SPH formulation in Cartesian coordinates to be migrated into an axisymmetric formulation. The proposed procedure is first applied to analyse transient deformations of a cylindrical rod impacting a rigid wall (Taylor impact test). A good agreement with published experimental data for the deformed shape is obtained. A sensitivity stu

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Intartaglia, Carmela, Leonardo Soria, and Maurizio Porfiri. "Hydrodynamic coupling of two sharp-edged beams vibrating in a viscous fluid." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 470, no. 2162 (2014): 20130397. http://dx.doi.org/10.1098/rspa.2013.0397.

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In this paper, we study flexural vibrations of two thin beams that are coupled through an otherwise quiescent viscous fluid. While most of the research has focused on isolated beams immersed in placid fluids, inertial and viscous hydrodynamic coupling is ubiquitous across a multitude of engineering and natural systems comprising arrays of flexible structures. In these cases, the distributed hydrodynamic loading experienced by each oscillating structure is not only related to its absolute motion but is also influenced by its relative motion with respect to the neighbouring structures. Here, we

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Dissertations / Theses on the topic "Hydrodynamic formulation"

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Kernot, Matthew Peter. "The second-order forcing and response of offshore structures in irregular seas." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306887.

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Ganga, Dharan Deepak. "Numerical Analysis of End-Sealed Squeeze-Film Damper Bearings using Moving Reference Frame Formulation." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470741953.

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Vidmar, Rodrigo. "Formulação hidrodinâmica para a equação de Schrödinger não-linear e não-local em condensados de Bose-Einstein." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163724.

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Será explorada a versão hidrodinâmica da equação de Schrödinger não-linear e não-local, descrevendo condensados de Bose-Einstein com auto-interações de longo alcance. Tais sistemas têm despertado interesse tendo em vista a busca da realização da condensação de Bose-Einstein sem necessidade de um potencial externo confinante e nos quais as interações atômicas locais não são suficientes. Para obter a descrição hidrodinâmica, a transformação de Madelung para a função de onda será utilizada, reduzindo o problema a uma equação da continuidade e a uma equação de transporte de momentum. Esta última é

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Zhang, Shiqiong. "Formulation and application of numerical schemes in surface water flows /." View abstract or full-text, 2003. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202003%20ZHANGS.

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Maghzian, Hamid. "Simulation of hydrodynamics of the jet impingement using Arbitrary Lagrangian Eulerian formulation." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/421.

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Controlled cooling is an important part of steel production industry that affects the properties of the outcome steel. Many of the researches done in controlled cooling are experimental. Due to progress in the numerical techniques and high cost of experimental works in this field the numerical work seems more feasible. Heat transfer analysis is the necessary element of successful controlled cooling and ultimately achievement of novel properties in steel. Heat transfer on the surface of the plate normally contains different regimes such as film boiling, nucleate boiling, transition boiling and

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Politis, Konstantinos. "Développement de modèles numériques de tension superficielle pour la simulation d'écoulements avec interface à l'aide d'une formulation multi-fluides." Thesis, Ecole centrale de Nantes, 2016. http://www.theses.fr/2016ECDN0021.

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Les méthodes de lubrification par injection d'air sont considérées par la communauté scientifique comme la principale percée technologique à venir pour la réduction de la trainée des navires de commerce. A cette fin, il est impératif de modéliser finement les phénomènes physiques en jeu dans la lubrification par injection d'air, qui intègrent la représentation précise de la tension superficielle, des instabilités d'interface et des écoulements avec entraînement d'air. Au cours de ce travail, nous nous sommes attachés au développement d'outils de programmation, de schémas de reconstruction d'in

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Marioni, Luca. "Modélisation numerique et couplage électromagnétique-CFD dans les procédés decoulée." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM011/document.

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Beaucoup de procédés utilisés dans l'industrie sidérurgique (coulée de lingots,coulée continue, …) peuvent générer des défauts : macro-ségrégation, mauvaises propriétés de la microstructure, défauts surfaciques. Ces problèmes peuvent être résolus par un contrôle de la température et de l’écoulement d'acier liquide. Le brassage électromagnétique (EMS) est une technique largement utilisée pour contrôler l’écoulement d'acier liquide par l’imposition d'un champ électromagnétique. Cette technique est complexe car elle couple plusieurs types de problèmes physiques:écoulement multiphasique, solidific

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Nandy, Arup Kumar. "Robust Finite Element Strategies for Structures, Acoustics, Electromagnetics and Magneto-hydrodynamics." Thesis, 2016. http://hdl.handle.net/2005/2913.

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The finite element method (FEM) is a widely-used numerical tool in the fields of structural dynamics, acoustics and electromagnetics. In this work, our goal is to develop robust FEM strategies for solving problems in the areas of acoustics, structures and electromagnetics, and then extend these strategies to solve multi-physics problems such as magnetohydrodynamics and structural acoustics. We now briefly describe the finite element strategies developed in each of the above domains. In the structural domain, we show that the trapezoidal rule, which is a special case of the Newmark family of al

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Books on the topic "Hydrodynamic formulation"

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Succi, Sauro. Generalized Hydrodynamics Beyond Navier–Stokes. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0006.

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The work of Chapman and Enskog opened a long period, lasting about three decades, in which most of the activity in kinetic theory was directed to the computation of the transport coefficients for different types of intermolecular potentials. Seeking the solution of the full Boltzmann equation itself was not much in focus, mostly on account of its daunting complexity. This situation took a sharp turn in 1949, with the publication of Harold Grad’s thesis. This Chapter presents the derivation of generalized hydrodynamics beyond the realm of the Navier-Stokes description, with special reference to

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R, Ohayon, and United States. National Aeronautics and Space Administration., eds. Mixed variational formulations of finite element analysis of elastoacoustic/slosh fluid structure interaction. National Aeronautics and Space Administration, 1991.

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Succi, Sauro. Lattice Gas-Cellular Automata. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0011.

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This chapter discusses the ancestor of the Lattice Boltzmann, the Boolean formulation of hydrodynamics known as lattice Gas Cellular Automata. In 1986, Uriel Frisch, Brosl Hasslacher and Yves Pomeau sent big waves across the fluid dynamics community: a simple cellular automaton obeying nothing but conservation laws at a microscopic level was able to reproduce the complexity of real fluid flows. This discovery spurred great excitement in the fluid dynamics community. The prospects were tantalizing: around free, intrinsically parallel computational paradigm for fluid flows. However, a few seriou

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Jones, Julie Ellis, and Hashim Hashim. Urodynamics. Edited by Christopher R. Chapple. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0035.

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Urodynamic studies encompass several tests to investigate the hydrodynamics of the lower urinary tract during bladder storage/filling and voiding. These tests include bladder diaries, free uroflowmetry, and post-void residuals, filling cystometry, voiding pressure/flow studies, urethral pressure profiles, leak point pressures, videourodynamics, ambulatory urodynamics, and electromyography. The tests are performed after formulating a urodynamics question to objectively observe lower urinary tract function and dysfunction with the idea of choosing an appropriate treatment for the pathology. Inva

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Book chapters on the topic "Hydrodynamic formulation"

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Bruner de Miranda, Luiz, Fernando Pinheiro Andutta, Björn Kjerfve, and Belmiro Mendes de Castro Filho. "Hydrodynamic Formulation: Mass and Salt Conservation Equations." In Fundamentals of Estuarine Physical Oceanography. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3041-3_7.

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Bruner de Miranda, Luiz, Fernando Pinheiro Andutta, Björn Kjerfve, and Belmiro Mendes de Castro Filho. "Hydrodynamic Formulation: Equations of Motion and Applications." In Fundamentals of Estuarine Physical Oceanography. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3041-3_8.

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Ungarish, Marius. "Physico-Mathematical Formulation." In Hydrodynamics of Suspensions. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-01651-0_2.

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Hermans, A. J. "Asymptotic Formulation." In Water Waves and Ship Hydrodynamics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0096-3_5.

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Hermans, A. J. "Boundary Integral Formulation and Ship Motions." In Water Waves and Ship Hydrodynamics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0096-3_3.

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Wijesinghe, Hettithanthrige S., and Nicolas G. Hadjiconstantinou. "Hybrid Atomistic-Continuum Formulations for Multiscale Hydrodynamics." In Handbook of Materials Modeling. Springer Netherlands, 2005. http://dx.doi.org/10.1007/978-1-4020-3286-8_133.

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Wijesinghe, Hettithanthrige S., and Nicolas G. Hadjiconstantinou. "Hybrid Atomistic-Continuum Formulations for Multiscale Hydrodynamics." In Handbook of Materials Modeling. Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-3286-2_133.

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Peitz, Jochen, and Stefan Appl. "Relativistic Dissipative Hydrodynamics in the 3+1 Formulation." In Hyperbolic Problems: Theory, Numerics, Applications. Birkhäuser Basel, 1999. http://dx.doi.org/10.1007/978-3-0348-8724-3_28.

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Smith, Arlynn W., and Kevin F. Brennan. "Comparison of Hydrodynamic Formulations for Non-Parabolic Semiconductor Device Simulations." In Simulation of Semiconductor Devices and Processes. Springer Vienna, 1995. http://dx.doi.org/10.1007/978-3-7091-6619-2_66.

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Utsumi, Takayuki. "Differential algebraic hydrodynamics solver with cubic-polynomial interpolation — two dimensional formulation —." In Computational Mechanics ’95. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_169.

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Conference papers on the topic "Hydrodynamic formulation"

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Ghannam, Mahmoud Yousef. "Mathematical Formulation for Hydrodynamic Stability of Fluidic Jets." In SAE 2002 World Congress & Exhibition. SAE International, 2002. http://dx.doi.org/10.4271/2002-01-0216.

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Aquelet, N., and M. Souli. "Explicit Coupling Methods in Hydrodynamic Impacts." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71656.

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The purpose of this paper is to study and compare two finite element coupling methods to simulate the problem of a body penetrating a free surface. The hydrodynamic impact problem concerns industrial designers in shipbuilding domain. In rough seas, sometimes ships suffer local damages from large water impact loads called slamming impacts. In the framework of a collaboration with a french research company in shipbuilding (Principia Marine) a numerical prediction of the local impulse load on a wedge striking a free surface is investigated by using two methods: penalty and Lagrange multiplier for

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AlHasni, Hani, Ona Thornquist, Shafquat Islam, Peter Garrison, and Iskender Sahin. "Hydrodynamic Coefficients for an Extraterrestrial Submarine." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10257.

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Abstract An autonomous submarine design was proposed as part of NASA’s NIAC program to explore the hydrocarbon seas of Titan, the Saturnian moon, and study its hydrological cycle. The submarine is to be capable of operating at both the surface and in a deeply-submerged mode. This study aims to complement and compare previous CFD simulations with results obtained using the panel code CMARC. The comparison is of interest as the previous studies included a grid-based viscous code and a particle method using smoothed-particle hydrodynamics. The previous approaches encountered difficulties in obtai

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Daghigh, M. "A New Formulation for Equivalent Hydrodynamic Modeling of the Jack-Up Legs." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28342.

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Regulations of offshore structures suggest the application of Morison type equation for the estimation of forces induced by wave and current on the slender bodies of Jacket and Jack-up structures. However, common values of hydrodynamic coefficients are rarely defined in two different regulations. Estimation of global responses of Jack-up structure, the simplified geometrical model is used, therefore we will try to modify the DNV formulations in order to estimate the hydrodynamic forces on equivalent pile. Finally, the forces on the real structure and the equivalent pile model are compared and

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Ledru, Rémi, Cédric Le Cunff, Jean-Michel Heurtier, Timothée Perdrizet, and Yann Poirette. "Influence of Hydrodynamic Modeling Assumptions on Floating Wind Turbine Behaviour." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24396.

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This paper aims to highlight the key physical aspects that govern the dynamic behavior of a trifloater based floating wind turbine and the modeling assumptions — with a focus on hydrodynamics modeling and platform/tower interface flexibility — required to properly take into account the coupled hydrodynamics and aerodynamics effects in the fatigue analysis. Three selected load cases are simulated with different hydrodynamics models and the results are compared to each other. On this specific floating structure, Morison formulation seems to provide very similar results compared to other hydrodyn

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SZYMCZAK, W., J. SOLOMON, A. BERGER, and J. ROGERS. "A numerical method based on a generalized formulation of hydrodynamic free surface problems." In 10th Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1541.

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Yasko, Isaiah, Anbara Lutfullaeva, Collier Fais, Muhammad Ali, and Khairul Alam. "Thermal Expansion Simulation of Composite Hydrodynamic Thrust Bearings." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23898.

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Abstract Fixed-geometry hydrodynamic thrust bearings rely on convergent geometry on the bearing face in the direction of relative motion to develop and maintain hydrodynamic pressure. Machining the convergent taper feature onto the bearing using traditional manufacturing processes can prove to be a difficult process due to the small magnitude of taper depth necessary for proper bearing performance. The work presented here investigates three different types of carbon fibers (AS-4/IM7/T-300) in an epoxy (3501-6) matrix for composite lamina formulation in taper-land composite thrust bearings as a

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Hoekstra, Carel, Henk Smienk, Joris van Drunen, and Alessio Pistidda. "Applying CFD for In-Line Structure Hydrodynamics in Pipeline Installation Analysis." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54273.

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Over the last decade Heerema Marine Contractors (HMC) has successfully performed multiple installation campaigns of large sized in-line structures (ILS) with Deep Water Construction Vessels (DCV) Aegir and Balder. Nowadays steady increase in size and weight of ILS have made these special operations even more complex. Presence of large sized ILS and accompanying buoyancy modules in the catenary have proven to play a dominant role in pipeline integrity. Originally hydrodynamic force formulations in finite element analysis are solely designated for the pipeline itself. These computations comprehe

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Tourbier, Matthieu, Bernard Peseux, Bundi Donguy, and Laurent Gornet. "Modelling and Simulation of the Three-Dimensional Hydrodynamic Problem." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1142.

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This paper deals with slamming phenomenon (impact between bow ship and water free surface). Slamming loads on ship may be sufficiently important so as to create plastic deformations of the hull external structure. In extreme cases, they have been recognised for being responsible for the loss of ships. The problem to solve is transient and highly non-linear due to the character of the flow. In the present paper, the three-dimensional Wagner problem is solved numerically using a variational formulation together with a Finite Element Method. Three-dimensional results for simple rigid bodies such

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Ahmed, Aziz, M. Abdullah Al Maruf, Arun Kr Dev, and Mohammed Abdul Hannan. "Preliminary Analytical Formulation of Ice-Floater Interactions Including the Effect of Wave Load." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78340.

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Diminishing ice presence in the Arctic provides the potential for extended operable period for oil and gas exploration in the Arctic. Floaters are a flexible solution for such scenario whereas they can fully take advantage of the extended drilling season as well as operate in other harsh environment regions during the off-season. Such floaters can disconnect and reconnect to avoid large ice features such as icebergs and multi-year ice ridges. However, they still need to encounter relatively large level ice. Accompanying icebreakers will ideally assist in breaking the level ice into manageable

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Reports on the topic "Hydrodynamic formulation"

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Riveros, Guillermo, Felipe Acosta, Reena Patel, and Wayne Hodo. Computational mechanics of the paddlefish rostrum. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41860.

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Purpose – The rostrum of a paddlefish provides hydrodynamic stability during feeding process in addition to detect the food using receptors that are randomly distributed in the rostrum. The exterior tissue of the rostrum covers the cartilage that surrounds the bones forming interlocking star shaped bones. Design/methodology/approach – The aim of this work is to assess the mechanical behavior of four finite element models varying the type of formulation as follows: linear-reduced integration, linear-full integration, quadratic-reduced integration and quadratic-full integration. Also presented i

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