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Dissertations / Theses on the topic 'Crosswinds'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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1

Oriji, Ugochukwu Richard. "Numerical investigation of intake flows in crosswinds." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708098.

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2

Macklin, A. R. "Measuring the effects of crosswinds on cars." Thesis, Cranfield University, 1996. http://dspace.lib.cranfield.ac.uk/handle/1826/10747.

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The crosswind sensitivity of a car is described as the sensitivity of a driver-vehicle system to vehicle movements provoked by wind influences. Research has shown that it is a contributory factor in accidents and that it is adversely affected by certain body shapes and by reductions in weight. Future legislation calling for a reduction in the amount of Carbon Dioxide produced by cars may well lead to this reduction in weight. Tests have been carried out on llth scale car models to compare the different results produced by static and dynamic tests. Although static tests are easier to perform, d
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Macklin, Adrian Roger. "Measuring the effects of crosswinds on cars." Thesis, Cranfield University, 1996. http://dspace.lib.cranfield.ac.uk/handle/1826/10747.

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The crosswind sensitivity of a car is described as the sensitivity of a driver-vehicle system to vehicle movements provoked by wind influences. Research has shown that it is a contributory factor in accidents and that it is adversely affected by certain body shapes and by reductions in weight. Future legislation calling for a reduction in the amount of Carbon Dioxide produced by cars may well lead to this reduction in weight. Tests have been carried out on llth scale car models to compare the different results produced by static and dynamic tests. Although static tests are easier to perform, d
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4

Cairns, Robert Stuart. "Lateral aerodynamic characteristics of motor vehicles in transient crosswinds." Thesis, Cranfield University, 1994. http://hdl.handle.net/1826/2507.

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Motor car crosswind stability can be adversely affected by reductions in both vehicle mass and drag coefficient. As these are two likely results of future developments the importance of research into vehicle aerodynamic stability is set to increase, moreover, there is evidence that transient effects will be the critical. An experimental facility has been designed and constructed and tests have been carried out to investigate the implications of simulating dynamic flow-fields. Vehicle models of approximately 1/6th scale have been propelled along a test track, in the laboratory, to pass through
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5

Fintelman, Daniëlle Maria. "Influence of cycling position and crosswinds on performance and aerodynamics." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6407/.

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Wind is fundamentally important to cyclists since it affects their performance, bicycle control, balance and road safety. The overall aim of this research is to improve the understanding of the effect of cycling position and crosswinds on the aerodynamics and performance of a cyclist. The first part of this thesis focuses on cycling position. To minimise air resistance, cyclists lower their torso to become more aerodynamic. Results show that lowering torso angle is associated with impairment of physiological functioning, which can be explained by a combination of mechanical and muscular factor
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6

Gupta, Sahil, and Vivek J. Shah. "Numerical study of the effects of wind-tunnel conditions on a passenger vehicle in crosswinds." Thesis, KTH, Teknisk mekanik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285876.

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Wind tunnel tests is a necessity when it comes to study of aerodynamic flow field around vehicle in its development process. However, there are certain limitations on physical wind tunnel tests during vehicle development process. This includes high running costs and interference effects due to blockage and boundary conditions. Hence, one of the main objective of this thesis is to study the effect of these boundary conditions and interference by a physical wind tunnel numerically in a virtual wind tunnel in straightline and steady crosswinds scenario. Furthermore, accuracy of different wind tun
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7

Dorigatti, Francesco. "Rail vehicles in crosswinds : analysis of steady and unsteady aerodynamic effects through static and moving model tests." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4267/.

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This thesis presents the results of an experimental investigation of scale-model trains in crosswinds, undertaken to assess steady and unsteady aerodynamic effects of the vehicle movement simulation. A 1:25 scale-model train was tested in the University of Birmingham's TRAIN rig facility. A crosswind generator was designed and constructed to enable static and moving model experiments in the presence of crosswinds in this facility. An on­ board pressure measuring system comprising a series of miniaturised pressure transducers and a bespoke stand­ alone data logger were developed. Static and mov
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8

Flynn, Dominic. "A numerical investigation of the effect of crosswinds on the slipstream of a model-scale freight train and associated effects." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6327/.

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A numerical investigation is presented in which the effect of crosswinds on the slipstream of a fully-loaded model-scale freight train is studied. The work used delayed detached-eddy simulation in order to produce accurate time-averaged data and also allowed for the instantaneous flow to be analysed. Significant slipstream amplification is shown for both pressure and velocity transients on the leeward side of the train. The most significant slipstream amplification is observed at the 30° yaw angle case where high velocities remain almost constant at the furthest measurement position from train
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9

Baden, Fuller Joshua. "The unsteady aerodynamics of static and oscillating simple automotive bodies." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10967.

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A wind tunnel based investigation into the effects of unsteady yaw angles on the aerodynamics of a simple automotive body has been carried out to increase the understanding of the effects of unsteady onset conditions similar to those experienced in normal driving conditions. Detailed flow field measurements have been made using surface pressure tappings and PIV around a simple automotive model in steady state conditions and these have been compared to measurements made whilst the model was oscillating in the yaw plane. The oscillating motion was created by a motored crank which was used to pro
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10

Morden, Justin Anthony. "A numerical investigation of the effects of crosswinds upon the aerodynamic characteristics of a high-speed passenger train and its slipstream." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7188/.

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The main work presented within this thesis is a numerical investigation of the effects of crosswind yaw angles upon the aerodynamic characteristics of a high-speed passenger train. The applicability of Computational Fluid Dynamic (CFD) approaches to the simulation of external flow around a passenger train were investigated. Results showed the Delayed DES (DDES) approach produced the highest correlation to experimental results. Ballast heights of 0m, 0.3m and 0.75m were simulated and compared to existing experimental results. Comparisons between cases found that a vortex from the train’s underb
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11

Chadwick, Andrew. "Crosswind aerodynamics of sports utility vehicles." Thesis, Cranfield University, 1999. http://hdl.handle.net/1826/2508.

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Crosswind gusts have a continuous influence on the ride and handling of road vehicles. At low speeds the effect is negligible but as both car and wind speeds increase there is a reduction in refinement, ride quality is degraded and it becomes tiring to drive. Future environmental legislation concerning the reduction of carbon dioxide emissions will lead to a lighter road vehicle and a corresponding increase in crosswind sensitivity. The aerodynamicist's approach to understanding the fluid flow around a vehicle when subjected to a crosswind has conventionally been through steady state model tes
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12

Juhlin, Magnus. "Assessment of crosswind performance of buses." Doctoral thesis, Stockholm : Skolan för teknikvetenskap, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10382.

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13

Horvath, Nathan Rosendo. "Inlet Vortex Formation Under Crosswind Conditions." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/302.

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A jet engine operating near the ground at low aircraft speeds, high thrust, and subject to a crosswind, can experience a flow separation region on the windward inlet lip and the formation of a vortex that extends from the ground to the engine fan face, known as the inlet vortex. This structure forms from a single point on the ground and is ingested by the engine. Inlet vortices are often observed during engine power-up at the start of the take-off run. They create considerable stagnation pressure losses and flow distortions at the engine fan face, compromising fan efficiency, thrust, and incre
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14

Juhlin, Magnus. "A study on crosswind sensitivity of buses /." Stockholm : Department of Aeronautical and Vehicle Engineering, Royal Institute of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4084.

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15

Favre, Tristan. "Aerodynamics simulations of ground vehicles in unsteady crosswind." Doctoral thesis, KTH, Aerodynamik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-50242.

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Ground vehicles, both on roads or on rail, are sensitive to crosswinds and the handling, travelling speeds or in some cases, safety can be affected. Full modelling of the crosswind stability of a vehicle is a demanding task as the nature of the disturbance, the wind gust, is complex and the aerodynamics, vehicle dynamics and driver reactions interact with each other.  One of the objectives of this thesis, is to assess the aerodynamic response of simplified ground vehicles under sudden strong crosswind disturbances by using an advanced turbulence model. In the aerodynamic simulations, time-depe
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16

Venkatasalam, Nachiyappan. "Crosswind assessment of trains on different ground configurations." Thesis, KTH, Järnvägsteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129712.

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Cross wind analysis is one of the important safety measures for rail vehicle certification. The objective of this study is to identify which vehicle certification ground setup, true flat ground (TFG) or single track ballast and rail (STBR) represents a more realistic ground setup with atmospheric boundary layer (ABL) wind inlet and also to represent an embankment scenario. A streamlined high speed train ICE3 and a conventional Regional train are taken for the analysis to represent both categories. CFD is used as a tool for calculations. The best practice recommended by the AeroTRAIN project is
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17

Theissen, Pascal [Verfasser]. "Unsteady Vehicle Aerodynamics in Gusty Crosswind / Pascal Theissen." München : Verlag Dr. Hut, 2012. http://d-nb.info/102878516X/34.

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18

Favre, Tristan. "Numerical Investigation of Unsteady Crosswind Aerodynamics for Ground Vehicles." Licentiate thesis, KTH, Aeronautical and Vehicle Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11311.

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<p>Ground vehicles are subjected to crosswind from various origins such as weather, topography of the ambient environment (land, forest, tunnels, high bushes...) or surrounding traffic. The trend of lowering the weight of vehicles imposes a stronger need for understanding the coupling between crosswind stability, the vehicle external shape and the dynamic properties. Means for reducing fuel consumption of ground vehicles can also conflict with the handling and dynamic characteristics of the vehicle. Streamlined design of vehicle shapes to lower the drag can be a good example of this dilemma. I
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19

Thomas, Dirk. "Lateral Stability of High-Speed Trains at Unsteady Crosswind." Licentiate thesis, KTH, Aeronautical and Vehicle Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11377.

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<p>Crosswind stability of rail vehicles has been a research area for several decades,mainly motivated by vehicle overturning accidents and higher speeds, but in recenttimes also by issues of lower energy consumption and track maintenance costsdemanding lower vehicle weights. During everyday operation, rail vehicles are subjectedto large lateral influences from track irregularities, track curves and crosswind,leading to large suspension deflections and increased crosswind sensitivity.Also unsteady crosswind like gusts calls for attention. Simulations of possible vehicleoverturning are necessary
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20

Guillard, Victor. "Study of the Fan Forced Response due to Crosswind." Thesis, KTH, Aerodynamik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-163900.

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Structures of an aircraft engine are not completely rigid. Therefore when they are subjected to aerodynamic loading, those structures will deform elastically and their shape will change, especially fan blades because of their size. Those elastic deformations and change in load can, depending on structural and flow characteristics, lead to stability problems and cause an excessive fatigue of the structure decreasing its lifetime or in the worst case, break the structure. Consequently it is necessary to study the engine response to aerodynamic loads to design it to prevent those problems and to
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21

Zhang, Xiaoyu [Verfasser]. "Crosswind stability of vehicles under nonstationary wind excitation / Xiaoyu Zhang." Karlsruhe : KIT Scientific Publishing, 2015. http://www.ksp.kit.edu.

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22

Wojciak, Johannes D. [Verfasser]. "Quantitative Analysis of Vehicle Aerodynamics during Crosswind Gusts / Johannes Wojciak." München : Verlag Dr. Hut, 2012. http://d-nb.info/1028784619/34.

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23

Carrarini, Antonio. "Reliability based analysis of the crosswind stability of railway vehicles." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980257387.

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24

Zhang, Dongming. "Study on Safety Improvement of Road Vehicle Subjected to Crosswind." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225569.

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25

Poudenx, Pascal. "Plume sampling of a flare in crosswind, structure and combustion efficiency." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0011/MQ59867.pdf.

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26

Ayers, William Hugh. "Fundamental studies of the extinguishment of pool fires in a crosswind." Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235892.

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27

Clark, Adam. "Predicting the Crosswind Performance of High Bypass Ratio Turbofan Engine Inlets." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1476265135449178.

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28

Carrarini, Antonio [Verfasser]. "Reliability based analysis of the crosswind stability of railway vehicles / Antonio Carrarini." Aachen : Shaker, 2006. http://d-nb.info/1170533965/34.

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29

Zhang, Xiaoyu [Verfasser], and C. [Akademischer Betreuer] Proppe. "Crosswind stability of vehicles under nonstationary wind excitation / Xiaoyu Zhang. Betreuer: C. Proppe." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/1069903078/34.

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30

Trapp, Luis Gustavo. "Flow analysis of an engine nacelle in crosswind : inlet vortices and their interactions." Instituto Tecnológico de Aeronáutica, 2012. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=2171.

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Aircraft engines and nacelles operating under crosswind present some design challenges. One of the phenomenon that requires a better comprehension is the vortex that forms between the ground and the engine inlet because this vortex can suck debris into the engine and also affect the engine operability. This work establishes procedures and criteria for using CFD for evaluating crosswind conditions that affect aeronautical engines. A new correlation, the streamtube diameter ratio (SDR), is proposed to predict the inlet vortex appearance and intensity. The different inlet vortices are described i
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31

Deliancourt, Frédéric. "Etude de l'aérodynamique des trains en situation de vents traversiers : impact de la présence d'appendices." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2015. http://www.theses.fr/2015ESMA0013/document.

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Lorsqu’un train circule en situation de vent traversier, il est exposé à un risque de renversement. L’évaluation de ce risque est possible à partir d’un calcul dynamique basé sur les efforts aérodynamiques, plus particulièrement le moment de renversement. Les coefficients aérodynamiques d’un véhicule ferroviaire peuvent être évalués en soufflerie. Lors de ce type d’essais, le nombre de Reynolds ne peut être respecté. L’expérience a montré que dans ces conditions, une mise à l’échelle directe des détails sur les maquettes de train ne conduit pas nécessairement à une représentation réaliste des
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32

Theissen, Pascal [Verfasser], Nikolaus A. [Akademischer Betreuer] Adams, and Thomas [Akademischer Betreuer] Roesgen. "Unsteady Vehicle Aerodynamics in Gusty Crosswind / Pascal Theissen. Gutachter: Thomas Roesgen. Betreuer: Nikolaus A. Adams." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1029818991/34.

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33

Abdulwahab, Abubaker. "Investigations on the roll stability of a semitrailer vehicle subjected to gusty crosswind aerodynamic forces." Thesis, University of Huddersfield, 2018. http://eprints.hud.ac.uk/id/eprint/34686/.

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Threats of high crosswind gusts on running safety of modern road and rail vehicles have been reported around the world. Under high transient crosswind conditions, sudden changes in vehicle aerodynamic forces can lead to adverse effects on vehicle dynamics and stability. Moreover, due to increase in maximum speed limits and body dimensions of commercial vehicles as well as reduction in their weights, large class vehicles, in particular, are more prone to rollover accidents in strong crosswind situations, especially at cruising speeds or at exposed sites. Such crosswind accidents have been obser
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34

Rossitto, Giacomo. "Influence of Afterbody Rounding on the Aerodynamics of a Fastback Vehicle." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2016. http://www.theses.fr/2016ESMA0010/document.

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Pendant les dernières décennies les constructeurs automobiles ont été confrontés à la tâche difficile de réduire la consommation de carburant et les émissions de CO2. En réponse à cela, des processus d'optimisation ont été appliquées pour générer de nouvelles formes de véhicule pour réduire la traînée aérodynamique. Malheureusement, les formes optimales obtenues n’ont aucun signe distinctif pour se différentier entre les différentes marques. Les stylistes tentent aujourd'hui de redonner une signature de marque en proposant des formes «non-conventionnelles» caractérisés par des montants arrière
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35

Kroupa, Michal. "CFD simulace poryvu bočního větru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318722.

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This thesis deals with the investigation of unsteady effects on vehicle that has been exposed to a crosswind gust. First crosswind velocity function was created, which is a function of both time and space. A comparison of continual and trapeze gust model was carried out. Next step was to compare unsteady and quasi-steady evolution of the aerodynamic loads using accumulated forces, surface pressures and flow field around the car. The penultimate part deals with investigation of unsteady behaviour of drag and in the last part the influence of rear geometry of the car on unsteady phenomena was in
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36

Wojciak, Johannes D. [Verfasser], Nikolaus A. [Akademischer Betreuer] Adams, and Christian J. [Akademischer Betreuer] Kähler. "Quantitative Analysis of Vehicle Aerodynamics during Crosswind Gusts / Johannes Wojciak. Gutachter: Christian J. Kähler. Betreuer: Nikolaus A. Adams." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1029818932/34.

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37

Diedrichs, Ben. "Studies of Two Aerodynamic Effects on High-Speed Trains : Crosswind Stability and Discomforting Car Body Vibrations Inside Tunnels." Doctoral thesis, Stockholm : School of engineering sciences, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4174.

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38

Wayne, David. "MEASURING OPTICAL TURBULENCE PARAMETERS WITH A THREE-APERTURE RECEIVER." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3409.

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This thesis discusses methods to measure several atmospheric parameters related to turbulence. Techniques used by two different scintillometers based on weak turbulence theory are discussed along with a method to estimate the inner scale developed by Hill. The theory and minimization algorithm used to infer the atmospheric parameters are discussed. The main focus is on the analysis and collection of experimental data with a three-aperture receiver system. Intensity fluctuations from a CW laser source are collected over a 1km path with three different receiving apertures. The scintillation inde
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Fojtů, Kevin. "Výpočet aerodynamických charakteristik vozidla s vybočením." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433567.

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The diploma thesis focuses on CFD simulation of a vehicle with various geometric modifications and non-zero angle flow. The goal of the work is to evaluate the effect of crosswinds for individual vehicle modifications together with the validation of these data sets with measured data from the wind tunnel. The last part of the thesis contains analysis of the flow field.
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40

Wang, Guoda. "Simulation numérique sur des feux de nappe de kérosène de grande échelle soumis à un vent traversier avec prise en compte d'un aéronef." Phd thesis, ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2014. http://tel.archives-ouvertes.fr/tel-01011242.

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Le feu est une des préoccupations majeures des avionneurs et des compagnies aériennesétant donnée la grande quantité de combustibles hautement inflammables à bord. De plus, lamenace au feu augmente par l'allègement grâce à la substitution de l'aluminium par dematériaux composites inflammables. La simulation numérique des grandes échelles estappliquée à un feu de nappe de kérosène de grande échelle soumis à un vent traversier avecprise en compte d'un aéronef de type d'aluminium et celui composite. La combustion esttraitée à l'aide d'une réaction globale et une hypothèse de chimie infiniment rap
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Vančura, Jan. "Citlivost vozidel na boční vítr." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-234163.

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The aim of the thesis is to devise a methodology which is capable of reliable evaluation of road vehicle’s crosswind sensitivity. The work consists of writing the mathematical model of a vehicle which includes aerodynamic loads and conducting a validation by means of technical experiment as defined by ISO 12021. A sensitivity analysis describing the influence of individual inputs on evaluation criteria of vehicle’s crosswind sensitivity is performed using the model, thereby establishing the overall model error caused by possible inaccuracies of input parameters. At the end, the relationship be
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Fernandez-Real, Marti. "Stochastic Model Predictive Control for Trajectory Planning." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285501.

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Trajectory planning constitutes an essential step for proper autonomous vehicles’performance. This work aims at defining and testing a stochastic approach providingsafe, length-optimal and comfortable trajectories accounting for road, model anddisturbance uncertainties. A Stochastic Model Predictive Control (SMPC) problemis formulated using a Linear Parameter Varying Bicycle Model, state-probabilisticconstraints and input constraints. The SMPC is transformed into a tractable quadraticoptimisation problem after assuming independent and gaussian uncertainties.The proposed trajectory planning met
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Volpe, Raffaele. "Analyse expérimentale et numérique du comportement de véhicules terrestres en présence d'un vent latéral instationnaire." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00907635.

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L'aérodynamique latérale des véhicules automobiles suscite de nos jours de plus en plus d'intérêt de la part des constructeurs. L'automobiliste est en effet soumis quotidiennement à de forts courants d'air latéraux, que ce soit lors du dépassement d'un autre véhicule, ou alorsen passant dans un couloir de vent du à la topographie du terrain (passage devant un espace entre deux immeubles par exemple). Les efforts aérodynamiques mis en jeu dans ces situations peuvent provoquer des mouvements non désirés du véhicule, pouvant avoir des conséquences dramatiques si le conducteur se laisse surprendre
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44

Hsiao, Lien-Fong, and 蕭連豐. "Aircraft Attitude Control in Crosswind Power." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/60253499498385078528.

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碩士<br>淡江大學<br>航空太空工程學系碩士班<br>102<br>To overcome the major difficulties posed by the traditional inefficient wind turbine generators. Base on Miles L. Loyd proposed a concept for an aerodynamically efficient kites, in order to make an application of nonlinear model execution on desire trajectory possible, a detail design of desire trajectory, a nonlinear model analysis, a detail design of Non-linear Model Predictive Controller system and Non-linear Model Predictive Controller system analysis are proposed.
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Wang, Xiang, and 王翔. "Flight Safety of Transport Aircraft in Landing with Crosswind Effects." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/88865554038914523211.

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碩士<br>中華科技大學<br>飛機系統工程研究所<br>104<br>Aircraft landing in crosswind effects has been a safety problem for all types of aircraft. The runway veer-off event due to crosswind effects has been of great concern for the aviation community. The main objective of this research is to present fuzzy-logic modeling (FLM) technique to establish flight control models with the function of nonlinear dynamic inversion based on the datasets from the flight data recorder (FDR) for the purpose to provide improved control strategy and situation awareness. The present thesis employs two twin-jet transports of the sam
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Chen, Dang-Shian, and 陳當賢. "Simulation Analysis of Aerodynamics Effect on Passenge Car under Crosswind Conditions." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/23824264363371293246.

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碩士<br>國立屏東科技大學<br>車輛工程系所<br>99<br>This study uses the moving grids technique of computational fluid dynamics methods to simulate the variations of fluid field and aerodynamics analysis for a passenger car driving on the road under different crosswind conditions. At the same time, the aerodynamics character will be also investigated when a passenger car with the installation of aerodynamic accessories. Simulation results show that the drag coefficient (Cd), lift coefficient (Cl), yawing moment coefficient (Cym) and rolling moment coefficient (Crm) could be decreased for the passenger cars w
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47

Carrarini, Antonio [Verfasser]. "Reliability based analysis of the crosswind stability of railway vehicles / vorgelegt von Antonio Carrarini." 2006. http://nbn-resolving.de/urn:nbn:de:kobv:83-opus-12997.

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48

Lam, Cecilia. "Thermal Characterization of a Pool Fire in Crosswind With and Without a Large Downwind Blocking Object." Thesis, 2009. http://hdl.handle.net/10012/4522.

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Experiments were conducted to investigate the macroscopic thermal behaviour of 2m diameter Jet A fires in crosswinds of 3m/s to 13m/s. Two scenarios were considered: with and without a 2.7m diameter, 10.8m long, blocking object situated 3.4m downwind of the fire. These scenarios simulated transportation accidents with the fire representing a burning pool of aviation fuel and the object simulating an aircraft fuselage. To date, the limited number of experiments that have been conducted to examine wind effects on fire behaviour have been performed at small scale, which does not fully simulat
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Best, Chris. "Measurement of Fuel Regression Rate of a Pool Fire in Crosswind With and Without a Large Downwind Blocking Object." Thesis, 2010. http://hdl.handle.net/10012/5232.

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Transportation accidents and the resulting fires are an important field of study. At the University of Waterloo Live Fire Research Facility (UWLFRF), an experiment was conducted in partnership with Sandia National Laboratories in Albuquerque, New Mexico. This experiment was designed to simulate an aircraft accident where fuel is spilled on the runway and is subsequently ignited. A crosswind pushes the 2.0 m diameter pool fire towards the aircraft fuselage and the conditions around the fire are monitored. Literature on the subject is examined first, examining the relationship between the fire,
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