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Dissertations / Theses on the topic 'Pulsed flow'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 March 2023

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1

Kumar, Pankaj. "Chaos in Pulsed Laminar Flow." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/39260.

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Fluid mixing is a challenging problem in laminar flow systems. Chaotic advection can play an important role in enhancing mixing in such flow. In this thesis, different approaches are used to enhance fluid mixing in two laminar flow systems. In the first system, chaos is generated in a flow between two closely spaced parallel circular plates by pulsed operation of fluid extraction and reinjection through singularities in the domain. A singularity through which fluid is injected (or extracted) is called a source (or a sink). In a bounded domain, one source and one sink with equal strength operat

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2

Finnigan, Sean Matthew. "Pulsed flow ultrafiltration in baffled tubular membranes." Thesis, University of Bath, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254875.

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3

Weeks, Colin. "Pulsed-flow microreactor studies of propene (Amm)oxidation." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266799.

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4

McCarthy, Larry K. "Steady Flow and Pulsed Performance Trends of High Concentration DMFCs." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10434.

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Direct Methanol Fuel Cells (DMFCs) are a promising source of energy due to their potentially high energy density, facilitated fuel delivery and storage, and precluded fuel processing. However, DMFCs have several challenges which need to be resolved before they can replace existing energy sources. Some of the challenges include lower power density, relatively high cost, and uncertain reliability. These issues are all promoted, at least in part, by the methanol crossover phenomenon, wherein membrane permeability allows the undesirable species transport of methanol from anode to cathode. This phe

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5

Castera, Philippe. "Energy coupling mechanisms in pulsed surface discharges for flow control." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0041/document.

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Ce travail s'intéresse aux effets mécaniques créés par les décharges de surface et à leur efficacité comme actionneur. Une géométrie particulière d'électrodes permet de créer de manière pulsée un filament linéaire de plasma et de le chauffer très rapidement par effet Joule (à raison de plusieurs Joules en moins d'une microseconde). Ce chauffage rapide entraîne la formation d'ondes de choc qui peuvent interagir avec l'écoulement ambiant.Nous étudions le comportement électrique de la décharge de surface afin d'évaluer l'énergie déposée dans le filament de plasma par effet Joule. Pour ce faire, n

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6

Nishihara, Munetake. "Low-temperature supersonic flow control using repetitively pulsed MHD force." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1164748794.

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7

Baluti, Silviu Ioan. "Experimental characterization of flow dynamics of pulsed-chemical vapour deposition." Thesis, University of Canterbury. Mechanical Engineering, 2005. http://hdl.handle.net/10092/6593.

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This research is a study of the precursor mass transport, the first variable that affects the film deposition rate, uniformity, coverage, and microstructure of resulted films on substrates inside Chemical Vapour Deposition (CVD) reactors. The Pulsed-CVD reactant flow field uniformities in pulse flow were compared to equivalent steady flow regimes. For mass limited transport CVD processes this represents an important matter, as precursor flux increase leads directly to increased deposition rates. The objective of the research was to develop design relations and define operational parameter rang

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8

Xu, Ling An. "Pulsed ultrasound cross correlation flowmeter for two component flow measurement." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277230.

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9

Rattray, P. "Pulsed flow and time-resolved dielectric spectroscopy of electrorheological fluids." Thesis, Cranfield University, 1994. http://dspace.lib.cranfield.ac.uk/handle/1826/10508.

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Research has been undertaken into the dielectric and rheological properties of electrorheological (ER) fluids. The fluids studied were based on acene-quinone radical polymers made within the department dispersed in silicone oil. A commercial poly(1ithium methacrylate) dispersion was also examined. As a means of probing the underlying mechanisms of the E phenomenon, the permittivity of the fluids was measured from 12 Hz to 100 kHz under both static and dynamic conditions. Results indicated that a interfacial polarization process was taking place. A series of visual observations were made of flu

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10

Fernelius, Mark H. "Effect of Full-Annular Pressure Pulses on Axial Turbine Performance." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3825.

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Pulse detonation engines show potential to increase the efficiency of conventional gas turbine engines if used in place of the steady combustor. However, since the interaction of pressure pulses with the turbine is not yet well understood, a rig was built to compare steady flow with pulsing flow. Compressed air is used in place of combustion gases and pressure pulses are created by rotating a ball valve with a motor. This work accomplishes two main objectives that are different from previous research in this area. First, steady flow through an axial turbine is compared with full annular pulsed

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11

Moore, Kenneth Jay Jr. "Large Scale Visualization of Pulsed Vortex Generator Jets." Wright State University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=wright1133809534.

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12

Pasumarti, Venkata-Ramya. "Large eddy simulation of heated pulsed jets in high speed turbulent crossflow." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37291.

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The jet-in-crossflow problem has been extensively studied, mainly because of its applications in film cooling and injector designs. It has been established that in low-speed flows, pulsing the jet significantly enhances mixing and jet penetration. This work investigates the effects of pulsing on mixing and jet trajectory in high speed (compressible) flow, using Large Eddy Simulation. Jets with different density ratios, velocity ratios and momentum ratios are pulsed from an injector into a crossflow. Density ratios used are 0.55 (CH4/air), 1.0 (air/air) and 1.5 (CO2/air). Results are compared w

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13

Hipp, Kyle D. "Control of a Post-Stall Airfoil Using Pulsed Jets." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1458565037.

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14

DEVARAKONDA, SURENDRA BALAJI. "BIOPARTICLE SEPARATION IN NON-NEWTONIAN FLUID USING PULSED FLOW IN MICRO-CHANNELS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155322288.

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15

Holland, Jeff F. "Nonideal and Pulsed Flow: Applying Residence Time Distributions to Stormwater Treatment Wetlands." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406812534.

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16

D'Silva, Aecio Moura. "Techniques for integrating aquaculture with agriculture on irrigated farms: Pulsed flow culture systems." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186245.

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The objective of this dissertation was to evaluate the feasibility for integrating aquaculture with agriculture on irrigated farms. I developed a pulsed flow culture procedure for culturing fish in irrigation ditches where water was replaced once daily. Water from the fish culture operation was than used to irrigate ornamental trees (mesquite) for sale to the nursery industry. Twelve and four tenths percent of the channel catfish survived the 90 day experiment whereas 88.5% of the tilapia survived. These differences were statistically (P < 0.05) significant and may indicate that red tilapia ar

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17

LeGouguec, Helene A. "Velocity measurement with a 2 MHZ pulsed doppler ultrasound probe in normal and stenosed models of the carotid bifurcation." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/16725.

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18

Faddoul, R. Y. "A high frequency ultrasound pulsed doppler system for the measurement of skin blood flow." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355397.

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19

Li, Datian. "Visualisaton of dynamic flow processes using a novel pulsed multi-element hot-wire anemometer." Thesis, Robert Gordon University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282866.

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20

Lisy, Vladimir, and Jana Tothova. "Multi-pulsed free-induction NMR signal from spins diffusing in a spatially restricted flow." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-192818.

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A multi-pulsed free-induction NMR experiment is described theoretically for spins diffusing within a cylindrical capillary. The characteristic time for the particles to move on a distance of the capillary diameter is smaller or comparable to the time interval between the applied 90° rf pulses and the relaxation times entering the Bloch equations. In this case the spin diffusion is restricted and the classical solutions of these equations for unbounded media are not applicable. We have calculated the mean magnetization in the cross-section of the capillary after any of the rf pulses and found t

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21

Aval, Sattar Motedayen. "A study of pulsed sprays in a high pressure and temperature gas cross flow." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333238.

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22

Lisy, Vladimir, and Jana Tothova. "Multi-pulsed free-induction NMR signal from spins diffusing in a spatially restricted flow." Diffusion fundamentals 9 (2009) 6, S. 1-10, 2009. https://ul.qucosa.de/id/qucosa%3A14144.

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A multi-pulsed free-induction NMR experiment is described theoretically for spins diffusing within a cylindrical capillary. The characteristic time for the particles to move on a distance of the capillary diameter is smaller or comparable to the time interval between the applied 90° rf pulses and the relaxation times entering the Bloch equations. In this case the spin diffusion is restricted and the classical solutions of these equations for unbounded media are not applicable. We have calculated the mean magnetization in the cross-section of the capillary after any of the rf pulses and found t

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23

Okulan, Nihat. "Fabrication and Characterization of a Pulsed MEMS-based Micro Flow Sensor for Microfluidic Applications." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin971724680.

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24

Bellis, Stephen John. "VLSI implementation of a spectral estimator for use with pulsed ultrasonic blood flow detectors." Thesis, Bangor University, 1996. https://research.bangor.ac.uk/portal/en/theses/vlsi-implementation-of-a-spectral-estimator-for-use-with-pulsed-ultrasonic-blood-flow-detectors(aada8831-f06d-4e23-94d6-341d021a3e62).html.

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The focus of this thesis is on the design and selection of systolic architectures for ASIC implementation of the real-time digital signal processing task of Modi- fied Covariance spectral estimation. When used with pulsed Doppler ultrasound blood flow detectors, the Modified Covariance spectral estimator offers increased sensitivity in the detection of arterial disease over conventional Fourier transform based methods. The systolic model of computation is considered because through pipelining and parallel processing high levels of concurrency can be achieved to attain the nec- essary throughpu

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25

Xu, Hanjiang. "Measurement of fiber suspension flow and forming jet velocity profile by pulsed ultrasonic doppler velocimetry." Diss., Available online, Georgia Institute of Technology, 2005, 2003. http://etd.gatech.edu/theses/available/ipstetd-1071/.

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26

Siqueira, Sunni Ann. "Calculation of Time-Dependent Heat Flow in a Thermoelectric Sample." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/honors_theses/24.

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In this project, the time-dependent one-dimensional heat equation with internal heating is solved using eigenfunction expansion, according to the thermoelectric boundary conditions. This derivation of the equation describing time-dependent heat flow in a thermoelectric sample or device yields a framework that scientists can use (by entering their own parameters into the equations) to predict the behavior of a system or to verify numerical calculations. Allowing scientists to predict the behavior of a system can help in decision making over whether a particular experiment is worthy of the time

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27

D'Andrea, Danilo. "Modelling of intra- and inter-species charged particle collisions for flow simulation in pulsed plasma thrusters." Eggenstein-Leopoldshafen Forschungszentrum Karlsruhe GmbH, 2009. http://d-nb.info/999764683/34.

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28

Kotze, Reinhardt. "Detailed non-Newtonian flow behaviour measurements using a pulsed ultrasound velocimetry method: Evaluation, optimisation and application." Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/2183.

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Thesis (DTech (Electrical Engineering))--Cape Peninsula University of Technology, 2011<br>Ultrasonic Velocity Profiling (UVP) is both a method and a device to measure an instantaneous one-dimensional velocity profile along a measurement axis by using Doppler echography. UVP is an ideal technique since it is non-invasive, works with opaque systems, inexpensive, portable and easy to implement relative to other velocity profile measurement methods. Studies have suggested that the accuracy of the measured velocity gradient close to wall interfaces need to be improved. The reason for this is d

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29

Graça, Cristo dos Santos Lopes Ruano Maria da. "Investigation of real-time spectral analysis techniques for use with pulsed ultrasonic Doppler blood flow detectors." Thesis, Bangor University, 1992. https://research.bangor.ac.uk/portal/en/theses/investigation-of-realtime-spectral-analysis-techniques-for-use-with-pulsed-ultrasonic-doppler-blood-flow-detectors(f184d2a8-bde7-492a-b487-438704d3ea04).html.

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The goals of the work described here were the development of a method of selection of spectral estimation for use with pulsed Doppler ultrasonic blood flow instruments, and the use of this method to select an estimator and its implementation in a form suitable for real-time applications. A study of estimation accuracy of the mean frequency and bandwidth using a number of spectral estimators was carried out. Fourier based, parametric, and, minimum variance estimators were considered. A Doppler signal simulator was developed to allow the accuracy tests required. A method of selection of spectral

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30

Thomas, Nicholas. "On the application of the Doppler effect in pulsed Doppler flowmeters and the effect of certain propagation and scattering artifacts." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297092.

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31

Schild, Ilissa Brooke. "Influence of Spark Energy, Spark Number, and Flow Velocity on Detonation Initiation in a Hydrocarbon-fueled PDE." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7527.

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Pulsed Detonation Engines (PDEs) have the potential to revolutionize fight by better utilizing the chemical energy content of reactive fuel/air mixtures over conventional combustion processes. Combustion by a super-sonic detonation wave results in a significant increase in pressure in addition to an increase in temperature. In order to harness this pressure increase and achieve a high power density, it is desirable to operate PDEs at high frequency. The process of detonation initiation impacts operating frequency by dictating the length of the chamber and contributing to the overall cycle ti

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32

Cardoso, Jose Carlos Silva. "Investigation and implementation of real-time spectral estimation techniques for use with pulsed Doppler blood flow detectors." Thesis, Bangor University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389743.

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33

David, Jean-Yves. "Modern spectral analysis techniques for blood flow velocity and spectral measurements with a 20 MHZ pulsed doppler ultrasound catheter." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/17791.

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34

Lao, Ieng Kin. "Mechanistic and experimental investigations of pulsed electric field flow fractionation micro device and its applications for nanoparticle and biomolecule separation /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CENG%202004%20LAO.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2004.<br>Accompanying CD-ROM contains supporting information on avi formated video clips. Includes bibliographical references (leaves 172-183). Also available in electronic version. Access restricted to campus users.

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35

Lim, Chin Wai. "Numerical Modelling of Transient and Droplet Transport for Pulsed Pressure - Chemical Vapour Deposition (PP-CVD) Process." Thesis, University of Canterbury. Mechanical Engineering, 2012. http://hdl.handle.net/10092/6829.

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The objective of this thesis is to develop an easy-to-use and computationally economical numerical tool to investigate the flow field in the Pulsed Pressure Chemical Vapour Deposition (PP-CVD) reactor. The PP-CVD process is a novel thin film deposition technique with some advantages over traditional CVD methods. The numerical modelling of the PP-CVD flow field is carried out using the Quiet Direct Simulation (QDS) method, which is a flux-based kinetic-theory approach. Two approaches are considered for the flux reconstruction, which are the true directional manner and the directional splitting

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36

D'Andrea, Danilo [Verfasser]. "Modelling of intra- and inter-species charged particle collisions for flow simulation in pulsed plasma thrusters / Danilo D'Andrea." Eggenstein-Leopoldshafen : Forschungszentrum Karlsruhe GmbH, 2009. http://d-nb.info/999764683/34.

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37

Mullen, Christopher. "Radical-molecule reaction dynamics studied using a pulsed supersonic Laval nozzle flow reactor between 53 and 188 Kelvin." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280633.

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A pulsed supersonic Laval nozzle flow reactor has been employed to investigate a variety of neutral-radical reaction processes at temperatures between 53 and 188 Kelvin. These supersonic flows simulate the conditions found in the Earth's upper atmosphere as well as certain environments in the interstellar medium and outer planetary atmospheres and thus provide direct information on the chemistry and physical processes occurring in those environments. Studies of this type, in the limit of 0 Kelvin, coupled with modern astronomical observations of planetary atmospheres and dense molecular clouds

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38

Fernelius, Mark H. "Experimental and Computational Analysis of an Axial Turbine Driven by Pulsing Flow." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6548.

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Pressure gain combustion is a form of combustion that uses pressure waves to transfer energy and generate a rise in total pressure during the combustion process. Pressure gain combustion shows potential to increase the cycle efficiency of conventional gas turbine engines if used in place of the steady combustor. However, one of the challenges of integrating pressure gain combustion into a gas turbine engine is that a turbine driven by pulsing flow experiences a decrease in efficiency. The interaction of pressure pulses with a turbine was investigated to gain physical insights and to provide gu

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39

Keshav, Saurabh. "Using Plasmas for High-Speed Flow Control and Combustion Control." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1222026159.

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40

Chabert, Timothée. "Contrôle expérimental en boucle fermée du décollement sur un volet." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066011.

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Le décollement de la couche limite sur un volet est responsable de pertes de performances importantes, telles qu'une chute de la portance et une augmentation de la traînée, lors des phases de décollage et d'atterrissage d'un avion. Les aéronefs modernes sont équipés de volets dont le déploiement laisse apparaître une fente qui permet d'augmenter la portance aux faibles vitesses. Les mécanismes de déploiement associés sont lourds et complexes. Dans le but de les simplifier, l'idée consiste à supprimer la fente entre le volet et l'aile, et à la remplacer par un dispositif de contrôle du décollem

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41

STANEK, MICHAEL JOSEPH. "A NUMERICAL STUDY OF THE EFFECT OF FREQUENCY OF PULSED FLOW CONTROL APPLIED TO A RECTANGULAR CAVITY IN SUPERSONIC CROSSFLOW." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1123778509.

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42

Dutta, Ashim. "Cavity Ignition and Flameholding of High Speed Fuel-Air Flows by a Repetitively Pulsed Nanosecond Discharge." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313179906.

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43

Shamu, Tafadzwa John. "Evaluation and characterisation of an ultrasound based in-line rheometric system for industrial fluids." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2189.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology.<br>Pulsed Ultrasound Velocimetry combined with Pressure Difference (PUV+PD) measurement is a non-invasive in-line rheometric technique which is used to analyse the complex flow properties of industrial fluids for quality control purposes. Cape Peninsula University of Technology (CPUT) and Technical Research Institute of Sweden (SP) have developed and patented a new PUV+PD based system, called Flow-Viz™. Despite this advancement, the system and ultrasound sensor technology have not been fully tested and evaluated

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44

Gargano, Ronaldo Gomes. "Ultrassonografia Doppler do fluxo arterial digital associado à alteração do coxim digital dos bovinos." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/10/10136/tde-07102015-105755/.

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O objetivo do estudo foi avaliar, por meio da ultrassonografia bidimensional e da ultrassonografia Doppler, as inter-relações entre a alteração de espessura do coxim digital com os índices vasculares da artéria digital dorsal comum dos membros pélvicos dos bovinos. A avaliação ultrassonográfica Doppler é uma técnica não invasiva de avaliação de índices vasculares, assim como, indiretamente, do volume de sangue do leito vascular. Para isso, foram realizados exames ultrassonográficos da espessura do coxim digital e também avaliação ultrassonográfica Doppler da referida artéria de 13 vacas primíp

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45

Lögdberg, Ola. "Turbulent Boundary Layer Separation and Control." Doctoral thesis, KTH, Linné Flow Center, FLOW, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9821.

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Boundary layer separation is an unwanted phenomenon in most technical applications, as for instance on airplane wings, ground vehicles and in internal flow systems. If separation occurs, it causes loss of lift, higher drag and energy losses. It is thus essential to develop methods to eliminate or delay separation.In the present experimental work streamwise vortices are introduced in turbulent boundary layers to transport higher momentum fluid towards the wall. This enables the boundary layer to stay attached at larger pressure gradients. First the adverse pressure gradient (APG) separation bu

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Memory, Curtis L. "Turbulent Transition Behavior in a Low Pressure Turbine Subjected to Separated and Attached-Flow Conditions." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1290996104.

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47

Dias, Ana Cristi Basile. "\"Sistemas de análises químicas em fluxo explorando multi-impulsão e detecção espectrofotométrica: aplicação a formulações farmacêuticas e a extratos de solos\"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-01062007-151046/.

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Os sistemas de análises em fluxo com multi-impulsão (MP) empregam bombas solenóides como unidade propulsora de fluidos, as quais proporcionam um fluxo pulsante. Esta característica foi avaliada em função do funcionamento, operação e desempenho do sistema, das condições de mistura entre as soluções envolvidas e da dispersão da solução inserida. A avaliação geral dos sistemas MP envolveu estudos de precisão e exatidão volumétrica dos pulsos, bem como da robustez da unidade propulsora, os quais envolveram medidas gravimétricas. Ainda, dispersão envolvendo uma solução colorida como amostra foi esp

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48

Sasaki, Milton Katsumi. "Comparação entre analisadores com fluxo constante ou pulsado: aplicação a amostras de relevância farmacêutica, agronômica e/ou ambiental." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-26012016-152115/.

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Sistemas de análises químicas em fluxo com multi-impulsão empregam bombas solenoide como unidade propulsora de fluidos, as quais proporcionam fluxos pulsados. Estes provêm um eficiente transporte radial de massas, o que garante boa homogeneização das soluções envolvidas, mesmo em situações de dispersão limitada. O objetivo principal deste trabalho foi então comparar o desempenho de metodologias envolvendo reagentes imobilizados em sistemas de análises em fluxo com fluxos constantes ou pulsados. Para isto, foram selecionadas as determinações espectrofotométricas de ácido ascórbico em produtos f

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49

Chabert, Timothee. "Contrôle expérimental en boucle fermée du décollement sur un volet." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-00966550.

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Le décollement de la couche limite sur un volet est responsable de pertes de performances importantes, telles qu'une chute de la portance et une augmentation de la traînée, lors des phases de décollage et d'atterrissage d'un avion. Les aéronefs modernes sont équipés de volets dont le déploiement laisse apparaître une fente qui permet d'augmenter la portance aux faibles vitesses. Les mécanismes de déploiement associés sont lourds et complexes. Dans le but de les simplifier, l'idée consiste à supprimer la fente entre le volet et l'aile, et à la remplacer par un dispositif de contrôle du décollem

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50

Szmigiel, Mathieu. "Etude du flux de soubassement sur la dynamique du sillage d'un corps non profilé à culot droit : Application du contrôle actif pour la réduction de traînée de véhicule industriel." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC016/document.

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Cette thèse CIFRE est le fruit d’une collaboration entre Renault Trucks et le LMFA dans la perspective d’une évaluation de la pertinence du contrôle actif pour la réduction de traînée de véhicule industriel. Les deux principaux objectifs de ces travaux expérimentaux consistent à l’analyse de l’influence de l’écoulement de soubassement sur la dynamique du sillage et l’étude d’une stratégie de contrôle d’écoulement combinant des volets déflecteurs (positionnés sur les bords supérieurs et latéraux du culot) à des actionneurs de type jets pulsés dans l’optique d’une réduction de la traînée aérodyn

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