Bibliografie tematiche / Experimental Jetset

Letteratura scientifica selezionata sul tema "Experimental Jetset"

Autore: Grafiati
Pubblicato: 25 luglio 2024
Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Experimental Jetset"

1

Krawiec, Marcela. "Effect of Storage Duration and Temperature on Sets Loss and Bolting of Onion". Vegetable Crops Research Bulletin 66, n. 1 (1 gennaio 2007): 47–58. http://dx.doi.org/10.2478/v10032-007-0007-7.

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Effect of Storage Duration and Temperature on Sets Loss and Bolting of OnionOnion sets of two cultivars - Rawska and Jetset F1were calibrated into three grades depending on the diameter of onion (11-15, 16-20 and 21-25 mm). From October to March, sets were kept in the following conditions: I - 24 weeks at 0-1°C, II - 15 weeks at 0-1°C, then 9 weeks at 18-20°C, III - 11 weeks at 0-1°C, then 13 weeks at 18-20°C, IV - 24 weeks at 18-20°C. The storage loss caused by complete drying up, sprouting into leaves and occurrence of disease symptoms were determined. The sets left over after evaluation of storage loss were planted in the field in order to determine bolting of onion. Cold storage (0-1°C) for 24 weeks reduced loss but stimulated bolting. In the case of Jetset F1, warm storage (18-20°C) for the last 9 weeks of the 24 weeks' experimental storage period practically eliminated bolting. The sets of Rawska required longer exposures of 18-20°C at the end of storage for suppressing of inflorescence development than Jetset F1. The smaller onion sets were kept the shorter the duration of warm storage required to reduce bolting. The longer onion sets were stored at 18-20°C the greater storage loss were noted.
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Suder, Jakub, Kacper Podbucki e Tomasz Marciniak. "Power Requirements Evaluation of Embedded Devices for Real-Time Video Line Detection". Energies 16, n. 18 (18 settembre 2023): 6677. http://dx.doi.org/10.3390/en16186677.

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In this paper, the comparison of the power requirements during real-time processing of video sequences in embedded systems was investigated. During the experimental tests, four modules were tested: Raspberry Pi 4B, NVIDIA Jetson Nano, NVIDIA Jetson Xavier AGX, and NVIDIA Jetson Orin AGX. The processing speed and energy consumption have been checked, depending on input frame size resolution and the particular power mode. Two vision algorithms for detecting lines located in airport areas were tested. The results show that the power modes of the NVIDIA Jetson modules have sufficient computing resources to effectively detect lines based on the camera image, such as Jetson Xavier in mode MAXN or Jetson Orin in mode MAXN, with a resolution of 1920 × 1080 pixels and a power consumption of about 19 W for 24 FPS for both algorithms tested.
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Riho, Hiramoto, Shirahama Yoshikuni e Toyoda Kuniaki. "1122 EXPERIMENTAL STUDY ON VELOCITY FIELD OF PARALLEL CIRCULAR JETS". Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2013.4 (2013): _1122–1_—_1122–4_. http://dx.doi.org/10.1299/jsmeicjwsf.2013.4._1122-1_.

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Bao, Xiujuan, Lianhui Li, Weiqiang Ou e Lu Zhou. "Robot intelligent grasping experimental platform combining Jetson NANO and machine vision". Journal of Physics: Conference Series 2303, n. 1 (1 luglio 2022): 012053. http://dx.doi.org/10.1088/1742-6596/2303/1/012053.

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Abstract According to the requirements of the intelligent manufacturing experimental teaching project, this experimental platform develops a robot intelligent grasping experimental platform based on Jetson NANO and vision. The platform adopts the Jetson NANO controller based on Google open source machine learning framework TensorFlow + Keras, cooperates with the computer vision library OpenCV to develop the machine vision algorithm, and realizes the grasping and handling of materials based on a 6-DOF articulated robot, it can support open project-based experimental teaching. The experimental platform integrates the knowledge of robot control, machine vision, mechatronics and other aspects of courses, which can train students’ ability to solve complex engineering problems and stimulate students’ creative thinking. And the experimental platform has good openness. In the experimental teaching, it only needs to specify the objectives to be achieved without restricting the specific implementation methods. Students can independently design and test the algorithm program of each link in the visual positioning system through software, and deeply experience the relevant theoretical knowledge and practical methods through hands-on experiments.
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Ayoub, Naeem, e Peter Schneider-Kamp. "Real-Time On-Board Deep Learning Fault Detection for Autonomous UAV Inspections". Electronics 10, n. 9 (5 maggio 2021): 1091. http://dx.doi.org/10.3390/electronics10091091.

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Inspection of high-voltage power lines using unmanned aerial vehicles is an emerging technological alternative to traditional methods. In the Drones4Energy project, we work toward building an autonomous vision-based beyond-visual-line-of-sight (BVLOS) power line inspection system. In this paper, we present a deep learning-based autonomous vision system to detect faults in power line components. We trained a YOLOv4-tiny architecture-based deep neural network, as it showed prominent results for detecting components with high accuracy. For running such deep learning models in a real-time environment, different single-board devices such as the Raspberry Pi 4, Nvidia Jetson Nano, Nvidia Jetson TX2, and Nvidia Jetson AGX Xavier were used for the experimental evaluation. Our experimental results demonstrated that the proposed approach can be effective and efficient for fully automatic real-time on-board visual power line inspection.
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Narasimha Reddy, S., e M. Venkata Ratnam. "An Experimental Analysis of Lean Binary Mixture Segregation in a Continuous Liquid Fluidized Bed". International Journal of Chemical Engineering 2023 (9 novembre 2023): 1–17. http://dx.doi.org/10.1155/2023/7756174.

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This study examined the phenomenon of particle segregation in lean-phase binary mixtures, with a specific focus on the effect of particle size variations while flowing over a continuous liquid fluidized bed (LFB). The experimental configuration included a cylindrical column with a 72 mm internal diameter and 3 m vertical height. The binary mixture considered for this investigation was made up of solid materials that were rich in flotsam and jetsam. The study encompassed various factors, including liquid velocity, solid feed rate, and feed composition, in order to examine the separations containing flotsam and jetsam. A segregation index was calculated for each of the various combinations. On the other hand, the fluidization of the blend consisting of two solid components displayed notable differences in its behavior when compared to the reported effects of particle separation in any of the mixtures. Empirical correlations have been employed to establish relationships between variables, particularly with respect to solid entrainment and top and bottom product purity levels.
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Yose, Edward, Victor Victor e Nico Surantha. "Portable smart attendance system on Jetson Nano". Bulletin of Electrical Engineering and Informatics 13, n. 2 (1 aprile 2024): 1050–59. http://dx.doi.org/10.11591/eei.v13i2.6061.

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The masked face recognition-based attendance management system is an important biometric-based attendance tracking solution, especially in light of the COVID-19 pandemic. Despite the use of various methods and techniques for face detection and recognition, there currently needs to be a system that can accurately recognize individuals while they are wearing a mask. This system has been designed to overcome the challenges of widespread mask use, impacting the effectiveness of traditional face recognition-based attendance systems. The proposed system uses an innovative method that recognizes individuals even while wearing a mask without the need for removal. With its high compatibility and real-time operation, it can be easily integrated into schools and workplaces through an embedded system like the Jetson Nano or conventional computers executing attendance applications. This innovative approach and its compatibility make it a desirable solution for organizations looking to improve their attendance-tracking process. The Experimental results indicates using maximum resources possible the execution time needed on Jetson Nano is 15 to 22 seconds and 14 to 18 seconds respectively and the average frame capture if there are at least one face detected on Jetson Nano is 3-4 frames.
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Lin, Chun-Yuan, Jin Ye, Che-Lun Hung, Chung-Hung Wang, Min Su e Jianjun Tan. "Constructing a Bioinformatics Platform with Web and Mobile Services Based on NVIDIA Jetson TK1". International Journal of Grid and High Performance Computing 7, n. 4 (ottobre 2015): 57–73. http://dx.doi.org/10.4018/ijghpc.2015100105.

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Current high-end graphics processing units (abbreviate to GPUs), such as NVIDIA Tesla, Fermi, Kepler series cards which contain up to thousand cores per-chip, are widely used in the high performance computing fields. These GPU cards (called desktop GPUs) should be installed in personal computers/servers with desktop CPUs; moreover, the cost and power consumption of constructing a high performance computing platform with these desktop CPUs and GPUs are high. NVIDIA releases Tegra K1, called Jetson TK1, which contains 4 ARM Cortex-A15 CPUs and 192 CUDA cores (Kepler GPU) and is an embedded board with low cost, low power consumption and high applicability advantages for embedded applications. NVIDIA Jetson TK1 becomes a new research direction. Hence, in this paper, a bioinformatics platform was constructed based on NVIDIA Jetson TK1. ClustalWtk and MCCtk tools for sequence alignment and compound comparison were designed on this platform, respectively. Moreover, the web and mobile services for these two tools with user friendly interfaces also were provided. The experimental results showed that the cost-performance ratio by NVIDIA Jetson TK1 is higher than that by Intel XEON E5-2650 CPU and NVIDIA Tesla K20m GPU card.
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Kei, Wada, e Ishii Tatsuya. "1127 ACOUSTIC ABSORPTION OF PERFORATED PLATES WITH FINE JETS: EXPERIMENTAL RESULTS AND ANALYTICAL MODELS". Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2013.4 (2013): _1127–1_—_1127–6_. http://dx.doi.org/10.1299/jsmeicjwsf.2013.4._1127-1_.

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Sa, Rongyuan, e Minoru Takahashi. "ICONE19-43422 EXPERIMENTAL STUDY ON THERMAL INTERACTION OF ETHANOL JETS IN HIGH TEMPERATURE FLUORINERT". Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1943. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1943_175.

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Tesi sul tema "Experimental Jetset"

1

Hofmans, Marlous. "Experimental characterization of helium plasma jets". Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX062.

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Cette thèse porte sur l’étude d’un jet de plasma d'hélium à pression atmosphérique alimenté par des impulsions positives unipolaires à une fréquence de l’ordre du kHz. Des expériences sont effectuées pour caractériser la dynamique de propagation, la structure de l'écoulement et la température dans un jet en expansion libre, ainsi que l'influence d'une cible métallique sur le plasma.La spectroscopie à polarisation Stark indique un champ électrique axial d'environ 10 kV/cm dans le capillaire du jet et une augmentation jusqu'à 20 kV/cm dans le panache, qui est constante pour différentes amplitudes et durées de l'impulsion de tension appliquée. La diffusion Thomson et la diffusion Raman rotationnelle sont utilisées pour déterminer la densité électronique et la température électronique, à différentes positions axiales et radiales, ainsi que la température du gaz et la densité de N2 et O2 de l'air environnant qui sont mélangés dans le flux d’hélium.La comparaison quantitative de ces résultats expérimentaux avec les résultats d'un modèle fluide 2D montre une bonne concordance et permet une meilleure compréhension des résultats obtenus, à savoir que le champ électrique dans le front d'ionisation augmente avec la quantité d’air intégré au flux d’hélium au lond de la propagation. L'imagerie Schlieren révèle l'apparition de structures turbulentes à des débits élevés et lors de l'application des impulsions de tension. On constate que la température du gaz, mesurée par une sonde de température, augmente d'environ 12 C quand le plasma est allumé et d'environ 25 C lorsqu'une cible métallique est placée devant le jet
This thesis studies an atmospheric pressure helium plasma jet that is powered by positive, unipolar pulses at a kHz frequency. Experiments are performed that focus on the propagation dynamics, flow structure and temperature in a freely expanding jet, as well as the influence of a metallic target on the plasma.Stark polarization spectroscopy yields an axial electric field of around 10 kV/cm in the capillary of the jet and an increase up to 20 kV/cm in the plume, which is constant for different amplitudes and durations of the applied voltage pulse. Thomson and rotational Raman scattering are used to determine the electron density and electron temperature, at different axial and radial positions, as well as the gas temperature and the density of N2 and O2 that are mixed into the helium from the surrounding air.Quantitative comparison of these experimental results with results from a 2D fluid model show a good agreement and allow for a better understanding of the obtained results, namely that the electric field in the ionization front depends linearly on the flow composition at that location. Schlieren imaging shows the onset of turbulent structures at high applied flow rates and at the application of the voltage pulses. The gas temperature, as measured by a temperature probe, is found to increase by around 12 C when the plasma is ignited and by around 25 C when a metallic target is placed in front of the jet
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Kumar, Deepak Gould Roy Walter. "Experimental investigations of magnetohydrodynamic plasma jets /". Diss., Pasadena, Calif. : California Institute of Technology, 2009. http://resolver.caltech.edu/CaltechETD:etd-04092009-163047.

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Cain, Terrence M. "An experimental study of under-expanded jets". Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306018.

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Meireles, Pedro M. S. "Experimental study of twin air impinging jets". Master's thesis, Universidade da Beira Interior, 2009. http://hdl.handle.net/10400.6/2046.

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This work is devoted to the visualization and characterization of twin air jet flow when impinging vertically to a solid surface, which is important to understand the phenomenon relevant to Vertical/Short Take-Of and Landing (V/STOL) type of aircraft when they are operating on short distances from the ground, landing or taking-off, and could be helpful to improve the performance and stability of this kind of aircrafts. The major concern of this work is characterizing the fountain upwash region, which is a distinctive fan-shape flow that is formed on the collision region. The parameters analysed on this work are the separation distance between the jets and the jet height. Have been observed significant changes in the flow pattern and properties in the fountain upwash region due to the changes in the parameter studied. To be possible the realization of this work an experimental facility has been built. The facility supports an adjustable mechanical system which can accommodate twin stainless steel barrels with different diameters, which are the jets. Within this mechanical system, the barrels horizontal distance and height can be independently adjusted. The working fluid is the air, and to be possible the flow visualization a seeding generator have been projected and built. The flow visualization has been supported by an algorithm developed on the “Image Processing toolbox of Matlab” software, where have been made the post processing of the images.
Este trabalho baseia-se na visualização e caracterização do escoamento desenvolvido por dois jactos paralelos e verticalmente disposto em relação a uma superfície sólida. Estes fenómenos estão associados com aeronaves de descolagem e aterragem vertical ou curta (V/STOL – vertical/short take-of and landing). Particularmente, interessa a caracterização da região conhecida como “fountain upwash”, que é uma forma característica do escoamento que se forma na região da colisão. Os parâmetros analisados neste trabalho foram a distância horizontal entre os jactos e a altura destes à superfície de impacto. Foram observados diferenças significativas no padrão e propriedades do escoamento na região de “fountain upwash” devido à variação dos parâmetros em estudo. Para a realização deste estudo foi construída uma instalação experimental. A instalação é ajustável mecanicamente, contendo dois tubos de aço, com diâmetro variável. O sistema mecânico permite o ajustamento, independentemente, a distância horizontal entre os jactos e a altura dos mesmos. Como neste trabalho se vai trabalhar com ar, para ser possível visualizar o escoamento é necessário marcar o escoamento. Nesse sentido foi desenvolvido um gerador de “seeding”. Para uma melhor e mais precisa visualização do escoamento foi desenvolvido um algoritmo no “Matlab” usando “Image Processing toolbox”, onde as imagens captadas foram pós processadas.
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Diebold, Benoît. "Etude experimentale des jets turbulents intracardiaques". Paris 6, 1993. http://www.theses.fr/1993PA066353.

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Les jets intracardiaques sont des jets turbulents. Ils peuvent etre analyses de multiples manieres mais leur structure hydraulique est mal connue. Les donnees disponibles sont soit imprecises soit lointaines car etablies en ecoulement continu. Ce travail a ete conduit pour recueillir experimentalement des champs de vitesses dans des simulations de ces jets grace a des velocimetres ultrasonores et un anemometre laser doppler. Les resultats montrent l'existence, au pic de vitesse, d'un cone central comparable a celui decrit en ecoulement continu. Il ne s'etablit que progressivement au cours de l'acceleration et le front d'onde progresse lentement. Ce n'est qu'en eliminant ce dephasage par l'extraction d'enveloppes que l'on retrouve la decroissance hyperbolique sur l'axe ou la normalisation gaussienne transversale. Toutes ces donnees sont alterees en cas de confinement. Dans la couche limite, on trouve des fluctuations rapides mais organisees de la vitesse. Ces donnees ont deja debouche sur des applications cliniques
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Svensson, Klas. "Experimental and Numerical Investigations of Confluent Round Jets". Doctoral thesis, Linköpings universitet, Energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117066.

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Unconfined multiple interacting confluent round jets are interesting from a purely scientific point of view, as interaction between neighboring jets brings additional complexity to the flow field. Unconfined confluent round jets also exist in various engineering applications, such as ventilation supply devices, sewage disposal systems, combustion burners, chemical mixing or chimney stacks. Even so, little scientific attention has been paid to unconfined confluent round jets. The present work uses both advanced measurement techniques and computational models to provide deeper understanding of the turbulent flow field development of unconfined confluent round jets. Both Laser Doppler Anemometry (LDA) and Particle Image Velocimetry (PIV) have been used to measure mean velocity and turbulence properties within two setups, consisting of a single row of 1×6 jets and a square array of 6×6 confluent jets. Simulations using computational fluid dynamics (CFD) of the 6×6 setup were conducted using three different Reynolds Averaged Navier-Stokes (RANS) turbulence models: the standard k-ε, the RNG k-ε and the Reynolds Stress model (RSM). The results from the CFD simulations were compared with experimental data. The employed RANS turbulence models were all capable of accurately predicting mean velocities and turbulent properties in the investigated confluent jet array. In general the RSM and k-ε std. models provided smaller deviations between numerical and experimental results than the RNG k-ε model. In terms of mean velocity the second-order closure model (RSM) was not found to be superior to the less complex standard k-ε model. The validated CFD model was employed in a parametrical investigation, including five independent variables: inlet velocity, nozzle diameter, nozzle edge-to-edge spacing, nozzle height and the number of jets in the array. The parametrical investigations made use of statistical methods in the form of response surface methodology. The derived response surface models provided information on the principal influence and relative importance of the investigated parameters within the investigated design space. The positions of the jets within the array strongly influence both mean velocity and turbulence. In all investigated setups the jets experience merging and combining. Square arrays also include considerable jet convergence, which was not present in the 1×6 jet array. Due to the jet convergence in square arrays the turbulent flow field, especially for jets far away from the array center, is affected by mean flow curvature. Jets located along the sides of square jet arrays experience strong jet-to-jet interactions that result in considerable jet deformation, shorter potential core, higher turbulent kinetic energy and faster velocity decay compared to other jets. Jets located at the corners of the array do not interact as strongly with neighboring jets as do the jets along the sides. The locations of merging and combined points differ considerably between different jets and different jet configurations. As the jets combine a zone with uniform stream-wise velocity and low turbulence intensity forms in the center of square jet arrays. This zone has been called Confluent Core Zone (CCZ) due to its similarities with the potential core zone of a single jet. Within the CCZ the appropriate scaling length changes from nozzle diameter to the effective source diameter. The parametrical investigation showed that nozzle diameter and edge-to-edge nozzle spacing were the most important of the investigated parameters, reflecting a strong dependence on dimensionless jet spacing, S/d0. Higher S/d0 delays both merging and combining of the jets and leads to a CCZ with lower velocity and longer downstream extension. Increasing the array size leads to a reduced combined point distance, a stronger inwards displacement of jets in the outer part of the array, and reduced entrainment near the nozzles. A higher inlet velocity was found to increase the jet convergence in the investigated square confluent jet arrays. Nozzle height generally has minor impact on the investigated response variables.
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Aydemir, Erdoğan. "Experimental investigations into vortex rings in pulsed jets". Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610792.

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Soulopoulos, Nikolaos. "Experimental investigation of scalar mixing in unsteady turbulent jets". Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508326.

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Suzuki, Vidal Francisco Andres. "Experimental study of radiatively cooled magnetically driven plasma jets". Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/54712.

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This thesis presents the results of experiments to study the formation and dynamics of plasma jets in the laboratory, in particular their scaling to astrophysical jets. The experiments were performed on the MAGPIE generator, which delivered a peak current of 1 MA in 250 ns. A variety of plasma diagnostics allowed the dynamics of the jets to be studied and the conditions of the plasma to be determined. Radial wire array experiments were performed in which the mass of the wires and the magnitude of the toroidal magnetic field was varied. These results show that it is possible to control the time of formation and the expansion velocity of the magnetically driven jet that characterizes this configuration. In addition, the experiments allowed the introduction of a poloidal magnetic field into the radial wire array with the aim of studying its effect on the dynamics and stability of the plasma jet. The radial foil is introduced as a novel configuration to produce episodic magnetic-tower jets. Magnetic cavities were observed to emerge in timescales of ~ 30 ns, with increasing expansion velocities reaching ~ 300 km/s. The formation of episodic magnetically driven jets occurs due to reconnection of current at the base of the cavity, allowing 3-4 episodes to be produced per experiment. Results allowed the energy balance, the magnitude of the trapped toroidal magnetic field, and the characteristic temperatures in these outflows to be determined, as well as other plasma parameters. This experimental setup allowed the study of the interaction of episodic jets with an ambient medium by introducing a neutral gas above the foil. The dynamics of the formation of several shock structures at early times was studied, opening new possibilities for laboratory astrophysics experiments in the future.
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Kikkert, Gustaaf Adriaan. "Buoyant jets with two and three-dimensional trajectories". Thesis, University of Canterbury. Civil Engineering, 2006. http://hdl.handle.net/10092/1126.

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Extensive experimental data is available from previous research into the behaviour of buoyant jets released into an unstratified ambient. The experimental data has been the basis for theoretical and numerical modelling work, and currently several numerical models exist that are employed in the design of engineering structures built for the disposal of wastewater in the ocean. However there are still flow configurations with limited or no available experimental data, and hence confidence in the use of the models under some circumstances is limited. These circumstances include two-dimensional trajectory flows that are discharged at oblique angles to the ambient and buoyant jet flows with three-dimensional trajectories. As part of the current project an experimental investigation is conducted into the behaviour of discharges that have either two-dimensional or three-dimensional trajectories, focussing particularly on those configurations with currently limited available experimental data. A light attenuation technique is developed for the investigation of such flows, largely because it enables the behaviour of discharges with three-dimensional trajectories to be recorded with relative ease. However, this technique provides integrated views of the flow and hence the interpretation of the integrated concentration data is aided by assumed mean cross-sectional concentration profiles. In the strongly advected region (with the exception of the weak-jet) a double-Gaussian approximation is shown to provide a reasonable representation of mean concentration profiles. In the weakly advected regions and the weak-jet region, it is well- known that a single Gaussian adequately represents the mean flow structure. A new numerical model, the Momentum Model, is developed to assist in the design and to monitor the performance of the experimental investigation. Unlike other models, the behaviour of the flow is determined by the relative magnitudes of the initial excess momentum flux, the buoyancy-generated momentum flux and the entrained ambient momentum flux. It is shown that ratios of these momentum fluxes are equivalent to the length-scales traditionally employed for this task. Predictions from the Momentum Model are compared with data from the current and previous experimental investigations and, in addition, predictions from two representative numerical models, VisJet and CorJet. Predictions from the Momentum Model are shown to be consistent with data for a wide variety of discharge configurations. These predictions are also generally consistent with those of VisJet and CorJet. However, the experimental results from the II buoyant jet discharged in a moving ambient show that the spreading rates of the strongly advected flows (puffs and thermals) differ, and while this difference is incorporated into the Momentum Model, it is not evident in the VisJet and CorJet predictions. Numerical model predictions of negatively buoyant discharges are shown to be inadequate. This discharge configuration is investigated in some detail experimentally and additional analytical solutions of the flow behaviour are developed to aid in the interpretation of the flow behaviour. The experimental results show that buoyancy-induced instabilities on the inner side of the jets, which generate additional vertical mixing, significantly alter the form of the mean concentration profiles in this region. This results in considerably higher integrated dilutions along the flow centreline. Another significant difference between the newly developed Momentum Model and the existing numerical models (VisJet and CorJet), is the approach taken to dealing with oblique discharges in a cross-flow. Experimental results in combination with additional analytical solutions show that for initial discharge angles of 20° and less, an oblique discharge in a cross-flow becomes a weak-jet in the strongly advected region, and for angles of 40° and above, the flow becomes a puff. The strongly advected behaviour predicted by the Momentum Model changes abruptly at the transition angle, and is reasonably consistent with the data. The gradual change in strongly advected behaviour employed by VisJet and CorJet does not appear to be appropriate in the puff region. Finally a preliminary experimental investigation of discharges with three-dimensional trajectories shows that there are significant discrepancies between the predicted behaviour and the experimental data. This is surprising given the numerical models are, for the most part, able to predict the behaviour of flows with two-dimensional paths with reasonable accuracy. It is evident that flows with three-dimensional paths are modified more severely by the different directions of the initial, buoyancy-generated, and entrained ambient momentum fluxes than the current models suggest.
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Più fonti

Libri sul tema "Experimental Jetset"

1

Jetset, Experimental. Full scale, false scale. Amsterdam: Roma Publications, 2019.

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2

Jetset, Experimental. Statement and counter-statement: Notes on Experimental Jetset. Volume 1. [Arnhem, Netherlands?]: Roma Publications, 2015.

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3

Robotti, Aurelio C. Experimental research on electric propulsion.: Experimental research on a plasma jet with vortex type stabilization for propulsion. Washington DC: National Aeronautics and Space Administration, 1985.

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4

North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Computational and experimental assessment of jets in crossflow. Neuilly sur Seine, France: AGARD, 1993.

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5

Maĭer, Valeriĭ Vilʹgelʹmovich. Prostye opyty so strui͡a︡mi i zvukom. Moskva: "Nauka," Glav. red. fiziko-matematicheskoĭ lit-ry, 1985.

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6

Raman, Ganesh. Resonant interaction of a linear array of supersonic rectangular jets: An experimental study. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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K, Kuo Kenneth, e United States. National Aeronautics and Space Administration., a cura di. Combustion of lox with H(g) under subcritical, critical and supercritical conditions (task 1) ; and, Experimental observation of dense spray and mixing of impinging jets (task 2): Annual report. University Park, PA: Propulsion Engineering Research Center, Pennsylvania State University, 1992.

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8

North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Computational and experimental assessment of jets in cross flow: Papers presented and discussions recorded at the Fluid Dynamics Panel Symposium held in Winchester, United Kingdom, from 19th-22nd April 1993. Neuilly-sur-Seine: AGARD, 1993.

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Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel., a cura di. Computational and experimental assessment of jets in cross flow: Papers presented and discussions recorded at the Fluid Dynamics Panel Symposium held in Winchester, United Kingdom, from 19th-21st April 1993. Neuilly sur Seine: Agard, 1993.

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10

Loan, Löser. Experimental Jetset. Blurb, 2014.

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Più fonti

Capitoli di libri sul tema "Experimental Jetset"

1

Kaushik, Mrinal. "Supersonic Jets". In Theoretical and Experimental Aerodynamics, 321–60. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1678-4_13.

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2

Joshi, Kiran. "Experimental Apparatus". In QCD Radiation in Top-Antitop and Z+Jets Final States, 33–43. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19653-4_2.

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3

Chang, You-Hao. "Experimental Apparatus". In Study of Double Parton Scattering in Photon + 3 Jets Final State, 7–26. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3824-2_2.

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4

Schmid, Karl. "Experimental Characterization of Gas Jets". In Laser Wakefield Electron Acceleration, 71–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19950-9_4.

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5

Loupias, Berenice, Claire Michaut, Chris D. Gregory, Emeric Falize, Jonathan Waugh, Dono Seiichi, S. Pikuz et al. "Astrophysical Jet Experiment". In Protostellar Jets in Context, 567–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00576-3_78.

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6

Korobitsin, G. P., V. A. Petrov e S. V. Chupina. "Numerical and Experimental Simulation of Separated Flows". In Separated Flows and Jets, 393–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84447-8_55.

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Bartsch, P., N. Weiser e W. Nitsche. "Experimental and Numerical Investigations on Turbulent Separated Diffuser Flows". In Separated Flows and Jets, 327–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84447-8_42.

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Sutton, E. P., W. J. Devenport e F. D. Barkey Wolf. "Experimental Studies of the Reattachment of Separated Shear Layers". In Separated Flows and Jets, 573–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84447-8_76.

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Wong, F., A. Medina, A. López Villa e G. J. Gutiérrez. "Experiments of Mercury Jets Impinging on Water". In Experimental and Computational Fluid Mechanics, 417–24. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00116-6_37.

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Šafařík, P. "An Experimental Study of Separated Flows in Transonic Blade Cascades". In Separated Flows and Jets, 411–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84447-8_58.

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Atti di convegni sul tema "Experimental Jetset"

1

Eisenstein, Robert A., T. Anderl, D. Bassi, P. Birien, R. K. Bock, A. Buzzo, E. Chesi et al. "The Jetset experiment at lear". In GLUEBALLS, HYBRIDS, AND EXOTIC HADRONS. AIP, 1989. http://dx.doi.org/10.1063/1.38092.

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2

Eisenstein, R. A., R. Armenteros, D. Bassi, P. Birien, R. Bock, A. Buzzo, E. Chesi et al. "The jetset experiment at Lear". In Particle production near threshold. AIP, 1991. http://dx.doi.org/10.1063/1.40347.

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3

Harris, Philip, D. Bassi, P. Biren, R. Bock, A. Buzzo, E. Chesi, P. Debevec et al. "First results from the Jetset experiment at LEAR". In Intersections between particle and nuclear physics. AIP, 1992. http://dx.doi.org/10.1063/1.41460.

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4

Xie, Yonghui, Tao Fan e Di Zhang. "Visualization of vortex generator jets for conical diffuser separation control using PIV". In International Conference on Experimental Mechnics 2008 and Seventh Asian Conference on Experimental Mechanics, a cura di Xiaoyuan He, Huimin Xie e YiLan Kang. SPIE, 2008. http://dx.doi.org/10.1117/12.839082.

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5

Nielsen, Kevin D., Larry J. Weber e Marian Muste. "Particle Image Velocimetry (PIV) Measurements in Plunging Jets". In Hydraulic Measurements and Experimental Methods Specialty Conference (HMEM) 2002. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40655(2002)59.

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6

Cican, Grigore, Marius Deaconu e Florin Frunzulica. "JetCat P80 noise experimental and numerical evaluation". In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5043971.

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7

Fidalgo Rodríguez, Guillermo. "New Trigger Studies for Emerging Jets at CMS Experiment". In New Trigger Studies for Emerging Jets at CMS Experiment. US DOE, 2023. http://dx.doi.org/10.2172/1988436.

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8

Grishin, A. M., A. N. Golovanov, V. V. Reino, V. M. Sazanovich, A. A. Strokatov, R. S. Tsvyk e M. V. Sherstobitov. "Experimental studies of swirling fire jets". In SPIE Proceedings, a cura di Gennadii G. Matvienko e Victor A. Banakh. SPIE, 2006. http://dx.doi.org/10.1117/12.723078.

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9

Anderson, Elgin. "Experimental Study of Asymmetric Parallel Jets". In 41st Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-638.

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10

Hall, Benjamin F., e Thomas Povey. "Experimental Study of Non-Reacting Low NOx Combustor Simulator for Scaled Turbine Experiments". In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43530.

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Abstract (sommario):
This paper presents the first experimental characterisation of a fully annular combustor simulator incorporating both swirl and temperature pattern. The simulator has been designed to non-dimensionally replicate the conditions of next-generation low NOx combustors, with high swirl and high near wall temperature gradients, making it suitable for use in fully scaled (correct Re, M, N/√T, TG/TW) turbine facilities, to investigate combustor turbine interaction effects. In reacting combustor flows with high swirl, combustion has a significant influence on vortex stability and therefore flow structure. In non-reacting simulators, with approximately isothermal flow, it is common to find instabilities that are not present in the equivalent reacting flow. Where this is the case, artificial methods must be used to stabilise the vortex core. It has previously been shown numerically and in simple experimental studies that a low-momentum axial jet at the vortex centre suppresses precession of the vortex core. This paper reports experimental data for highly swirling flows both with and without stabilizing jets. This investigation is the first of its type, and the results have implications for the design of simulators for next-generation scaled turbine experiments both in industry and academia.
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Rapporti di organizzazioni sul tema "Experimental Jetset"

1

Gomon, M. Experimental study of highly viscous impinging jets. Office of Scientific and Technical Information (OSTI), dicembre 1998. http://dx.doi.org/10.2172/296715.

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2

Marie, James John. A Partial Wave Analysis of Proton-Antiproton Annihilation Above Threshold for ΦΦ Production in the JETSET Experiment. Office of Scientific and Technical Information (OSTI), maggio 2006. http://dx.doi.org/10.2172/955627.

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3

Davoudzadeh, Farhad, e David Forliti. Numerical and Experimental Investigation of Confined Turbulent Multiple Transverse Jets. Fort Belvoir, VA: Defense Technical Information Center, giugno 2014. http://dx.doi.org/10.21236/ada611414.

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4

Ohnishi, Y. An Experimental Study of QCD and Jets in e+e- Annihilation. Office of Scientific and Technical Information (OSTI), giugno 2018. http://dx.doi.org/10.2172/1454134.

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5

Kaiser, Bryan, Ian Tregillis, Frank Cherne e Aaron Koskelo. Jets from shocked metal surfaces with grooves: Missing experiments. Office of Scientific and Technical Information (OSTI), febbraio 2024. http://dx.doi.org/10.2172/2377296.

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6

Davoudzadeh, Farhad, e David Forliti. Numerical and Experimental Investigation of Confined Turbulent Multiple Transverse Jets (Briefing Charts). Fort Belvoir, VA: Defense Technical Information Center, luglio 2014. http://dx.doi.org/10.21236/ada618199.

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7

Bertola, Numa J., Hang Wang e Hubert Chanson. Air bubble entrainment at vertical plunging jets: a large-scale experimental study. The University of Queensland, School of Civil Engineering, febbraio 2017. http://dx.doi.org/10.14264/449440.

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8

Lozano, Paulo, e Manuel Martinez-Sanchez. Jets and Sprays Emitted from Colloid Thrusters-Experiments and Modeling. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2003. http://dx.doi.org/10.21236/ada411642.

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9

Naughton, J., D. Stanescu, S. Heinz, R. Semaan, M. Stoellinger e C. Zemtsop. Integrated Computational/Experimental Study of Turbulence Modification and Mixing Enhancement in Swirling Jets. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2009. http://dx.doi.org/10.21236/ada495159.

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10

Marciniak, Michael James. Experimental observations of the breakup of multiple metal jets in a volatile liquid. Office of Scientific and Technical Information (OSTI), gennaio 1995. http://dx.doi.org/10.2172/79040.

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