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Dissertations / Theses on the topic 'Wind tunnel'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Premnath, S. M. Jason. "A tolerant axisymmetric wind tunnel." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28511.

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A solution to the current problem of wind tunnel wall interference could be achieved by ventilating the test section and thereby controlling the flow pattern around the model. The motivation for the slotted wall test section arises from the fact that a fully open jet and a fully closed jet introduce corrections of opposite sign to the wind tunnel data. This current work is limited to axisymmetric wind tunnels and solid blockage corrections. Such a tolerant axisymmetric wind tunnel (TAWT), which does not need any correction to the measured flow quantities and which is also independent of the t
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2

Mujica, Fernández Fernando R. (Fernando René). "Lattice gas wind tunnel." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13444.

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3

Hickle, Curtis. "Wind Tunnel renovation, flow verification and flapping wing analysis." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FHickle.pdf.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 2006.<br>Thesis Advisor(s):Dr. Kevin Jones and Dr. Garth Hobson. "June 2006." Includes bibliographical references (p.79-81). Also available in print.
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4

Paul, Matthew G. "Wing Deflection Analysis of 3D Printed Wind Tunnel Models." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1751.

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This work investigates the feasibility of producing small scale, low aerodynamic loading wind tunnel models, using FDM 3D printing methods, that are both structurally and aerodynamically representative in the wind tunnel. To verify the applicability of this approach, a 2.07% scale model of the NASA CRM was produced, whose wings were manufacturing using a Finite Deposition Modeling 3D printer. Experimental data was compared to numerical simulations to determine percent difference in wake distribution and wingtip deflection for multiple configurations. Numerical simulation data taken in the form
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5

Danis, Reed. "Investigating Forward Flight Multirotor Wind Tunnel Testing in a 3-by 4-foot Wind Tunnel." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1909.

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Investigation of complex multirotor aerodynamic phenomena via wind tunnel experimentation is becoming extremely important with the rapid progress in advanced distributed propulsion VTOL concepts. Much of this experimentation is being performed in large, highly advanced tunnels. However, the proliferation of this class of vehicles extends to small aircraft used by small businesses, universities, and hobbyists without ready access to this level of test facility. Therefore, there is a need to investigate whether multirotor vehicles can be adequately tested in smaller wind tunnel facilities. A tes
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6

Engel, Mark A. "A wind tunnel investigation of a wing-tip trailing vortex." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-01102009-063459/.

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7

Fitzgerald, Ryan Elizabeth. "Wind tunnel blockage corrections for propellers." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7363.

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Thesis (M.S.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Aerospace Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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8

Lubitz, William David. "Near real time wind energy forecasting incorporating wind tunnel modeling /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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9

Conan, Boris. "Wind resource accessment in complex terrain by wind tunnel modelling." Phd thesis, Université d'Orléans, 2012. http://tel.archives-ouvertes.fr/tel-00843645.

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To benefit from strong winds, an increasing number of wind turbines are placed in complex terrains. But complex terrains means complex flows and difficult wind resource assessment. This study proposed to use wind tunnel modelling to evaluate the wind in a complex topography. The goal of this study is to evaluate the possibilities of wind resources assessment by wind tunnel modelling and to quantify the important modelling parameters. The lower part of the atmosphere, the atmospheric boundary layer (ABL) is defined by a velocity and a turbulence gradient. The ABL is reproduced in the wind tunne
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10

Oliveira, Henrique Balona de Sá. "Wind erosion of biochar-amended soil: a wind tunnel experiment." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14312.

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Mestrado em Engenharia do Ambiente<br>Biochar application to soils has been reported in the scientific community as a possible means of improving agricultural productivity and, at the same time, as a powerful tool for carbon sequestration and climate change mitigation. However, current knowledge of biochar effects on soil functions and possible environmental threats is still not enough for a full-scale implementation. Erosion is one of the most serious and irreversible threats to soil and there is still no information if biochar may increase or decrease soil erosion rates. Soil erosion by wind
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11

Allan, Mark. "A CFD investigation of wind tunnel interference on delta wing aerodynamics." Thesis, University of Glasgow, 2002. http://theses.gla.ac.uk/4081/.

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To explore the influence of wind tunnel test facilities on delta wing aerodynamics, the interference has been separated into two distinct types, wall interference and support structure interference. The wall interference effects have been split into three further components, tunnel blockage, side wall interference, and roof and floor interference. Splitting the tunnel influence in this way allows us to determine the most detrimental interference effects, thus allowing the wind tunnel engineer to design experiments accordingly. Euler and more realistic RANS simulations of tunnel interference ha
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12

Ross, Ian J. "Wind tunnel blockage corrections : an application to vertical-axis wind turbines /." Dayton, Ohio : University of Dayton, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1271306622.

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Thesis (M.S. in Aerospace Engineering) -- University of Dayton.<br>Title from PDF t.p. (viewed 06/22/10). Advisor: Aaron Altman. Includes bibliographical references (p. 101-104). Available online via the OhioLINK ETD Center.
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13

Kayisoglu, Bengi. "Investigation Of Wind Effects On Tall Buildings Through Wind Tunnel Testing." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613324/index.pdf.

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In recent years, especially in the crowded city-centers where land prizes have become extremely high, tall buildings with more than 30 floors have started to be designed and constructed in Turkey. On the other hand, the technical improvements have provided the opportunity of design and construction of more slender structures which are influenced by the wind actions more. If the building is flexible, wind can interact with it so the wind induced oscillations can be significantly magnified. In order to analyze the response of such buildings under wind effects, wind tunnel tests are accepted to b
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14

Ross, Ian Jonathan. "Wind Tunnel Blockage Corrections: An Application to Vertical-Axis Wind Turbines." University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1271306622.

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15

Katirci, Argun. "Automation And Verification Of Ankara Wind Tunnel." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12607692/index.pdf.

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All the operational and measurement systems of Ankara Wind Tunnel was modified to operate automatically under the control of a central computer system programmed using the Lab View programming language. A cruciform air-to-air missile with triangular canard control and a trapezoidal wing model was tested by a 35mm diameter internal balance at Mach 0.2 and data was compared with the test data of the same model&rsquo<br>s test that was performed at NASA Langley Research Center.
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16

Abrahamsen, Ida Sinnes. "Wind tunnel model testing of offshore platforms." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18627.

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The purpose of this thesis is to highlight some of the areas of interest when it comes to wind tunnel experimenting of offshore platforms regarding stability concerns such as critical angles and wind overturning moment. Some important factors include design of tower geometry, the effect of surface roughness on drag, methods of calculating blockage corrections of wall interference and the generation of an atmospheric boundary layer to resemble full-scale conditions. Data obtained from wind tunnel experiments with two different models have been compared and discussed according to the areas of in
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17

Crawley, Damian M. "A wind-tunnel investigation of drag partition." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ55665.pdf.

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18

Harvey, Scott A. "Low-speed wind tunnel flow quality determination." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5584.

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Approved for public release; distribution is unlimited.<br>lected points. Incorporated instrumentation includes pressure transducers attached to a pitot-static tube, wall static pressure taps, and a pressure rake; a hotwire anemometry system, and a linear traverse system. These were integrated with a data acquisition (DAQ) processor with analog to digital conversion and digital I/O boards, and controlled using in-house developed LabVIEW software. Testing showed a maximum axial velocity of 38 m/s, which is 84% of the tunnel?s rated speed. The 2-D flow uniformity was within ±7% by pressure rake
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19

Roberts, E. C. "Energy simulation of climatic wind tunnel plant." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/7250.

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The Climatic Wind Tunnel (CWT) is a facility used by the motor industry to test vehicles under climatic extremes without the need for expensive overseas test programs. This work focuses on the application of computer simulation to the Heating Ventilation and Air Conditioning (HVAC) plant that makes up a CWT facility. The objective being to reduce its operational costs through the identification of energy saving operational strategies. When in operation the CWT has a peak power consumption of 3MW. The implementation of any measures that would reduce this peak load would give rise to considerabl
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20

Lyu, Zhipeng. "Aerodynamic Wind Tunnel in Passenger Car Application." Thesis, KTH, Mekanik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203971.

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The thesis aims to provide an evaluation on the Volvo 1/5th scaled wind tunnel regarding its potentials and capabilities in aerodynamic study. The flow quality in the test section was evaluated. The experiments were performed included measurements of airspeed stability, tunnel-wall boundary layer profile and horizontal buoyancy. A numerical model was developed to predict the boundary layer thickness on the test floor. Repeatability tests were also conducted to establish the appropriate operating regime.A correlation study between the 1/5th scaled wind tunnel (MWT) and full scale wind tunnel (P
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21

Hurst, Daryl John. "Wind tunnel experiments in fractal induced turbulence." Thesis, Imperial College London, 2007. http://hdl.handle.net/10044/1/7991.

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22

Inghels, Pieter. "Wind tunnel blockage corrections forwind turbine measurements." Thesis, KTH, Mekanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202632.

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Wind-tunnel measurements are an important step during the windturbinedesign process. The goal of wind-tunnel tests is to estimate theoperational performance of the wind turbine, for example by measuringthe power and thrust coecients. Depending on the sizes of both thewind turbine and the test section, the eect of blockage can be substantial.Correction schemes for the power and thrust coecients havebeen proposed in the literature, but for high blockage and highly loadedrotors these correction schemes become less accurate.A new method is proposed here to calculate the eect a cylindricalwind-tunn
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23

Al-Qahtani, Turki Haif. "An improved design of wind towers for wind induced natural ventilation." Thesis, University of Bath, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323566.

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24

Huff, Michael R. "A LabVIEW- based wind tunnel data acquisition system." Thesis, Monterey, California. Naval Postgraduate School, 1998. http://hdl.handle.net/10945/8605.

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Approved for public release; distribution is unlimited<br>The NPS Aerolab Low Speed Wind Tunnel located in Halligan Hall of the Navy Postgraduate School has been in operation since 1953. Although the tunnel is well maintained, its data acquisition system has not kept pace with modem technology. An effective but affordable solution for acquiring data was needed. It was determined that a software package known as LabVIEW would provide a low cost, data acquisition solution that will enhance the capabilities of the wind tunnel, while at the same time making it more user friendly to faculty and stu
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25

Sheng, Wanan. "CFD simulations in support of wind tunnel testing." Thesis, University of Glasgow, 2003. http://theses.gla.ac.uk/5393/.

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CFD and wind tunnel simulations are complementary due to their inherent limitations. Wind tunnel tests apply to any hypothesis, but are limited by the tunnel wall interference/blockage, the model details, and even the distortion of the model. CFD are not limited in any of these ways, but limited in speed and memory and the lack of determinate set of equations. Theoretically, CFD can provide an assessment of any problem in fluid dynamics (Direct Numerical Simulation), but the requirements of speed and memory are far from being met presently, or even in the foreseeable future. Of necessity, pres
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26

Persson, Tobias. "Wind Tunnel Effects on Truck Aerodynamica and Soiling." Thesis, KTH, Mekanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203972.

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27

Abudaram, Yaakov Jack. "Wind tunnel testing of load-alleviating membrane wings." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041340.

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28

Noor, Izham Muhammad Ibrahim Afif. "Wind tunnel project for teaching and researching purposes." Thesis, Noor Izham, Muhammad Ibrahim Afif (2017) Wind tunnel project for teaching and researching purposes. Honours thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/41914/.

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This project is concerned with the modelling and redesign of a small wind tunnel system. In the beginning of the project, a used wind tunnel is acquired by the Murdoch University from a company. The wind tunnel is expected to be used for the teaching purposes and it is also anticipated that the wind tunnel system will be used for research. First, an early research and literature review is carried out to obtain knowledge of the wind tunnel and the working principle and equations involved. This research helps to develop a basic understanding on the wind tunnel system and the required specificati
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29

Zhang, Haoran. "Wind tunnel project for teaching and researching purposes." Thesis, Zhang, Haoran (2019) Wind tunnel project for teaching and researching purposes. Honours thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/52714/.

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Wind tunnels are test devices used in aerodynamic experiments to understand the effects of air moving through solid objects. Wind tunnels are often used to provide a steady and controlled flow of wind to replace natural winds and to test new models of spacecraft, aircraft and vehicles, and some wind tunnels have enough room to inspect full-size cars. A small wind tunnel system has been acquired and requires re-design and testing. These works follow on the ENG470 work by Mr Ibrahim Noor Izham, who undertook the initial study that analysed the functionality and limitations of the existing wi
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30

BACCHINI, ALESSANDRO. "Electric VTOL preliminary design and wind tunnel tests." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2847140.

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31

Saddington, Alistair J. "Mutual Interference Between Jets and Intakes in STOVL Aircraft." Thesis, Department of Aerospace, Power and Sensors, 2009. http://hdl.handle.net/1826/3895.

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During wind tunnel testing of jet-lift, short take-off and vertical landing (STOVL) aircraft it is usual to simulate the jet efflux but not the intake flows. The intakes, which are commonly faired over or are unpowered, are generally tested in separate wind tunnel experiments. The forces acting on the wind tunnel model are determined by the linear addition of the forces obtained from the two separate tests. There is some doubt as to whether this is a valid approach. A systematic experimental investigation was, therefore, conducted to determine the magnitude of any jet/intake interference effec
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32

Kong, Lingzhe. "Experimental investigation of the tolerant wind tunnel for unsteady airfoil motion testing." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/29992.

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Previously, the concept of the tolerant wind tunnel, developed in the Department of Mechanical Engineering, U. B. C., was tested only for stationary models. In the present study, the concept is investigated for unsteady airfoil motion. The new wind tunnel test section, using the opposite effects of solid and open boundaries, is a new approach to reduce wall blockage effects. Consisting of vertical airfoil slats uniformly spaced on both side walls in the test section, it is designed to produce a nearly free-air test environment for the test model, which leads to negligible or small corrections
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33

Cusick, A. H. "Investigation of the effects of increased sophistication of simulation of the atmospheric wind in wind tunnels." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382907.

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34

Crede, Erin Dawne. "Aerodynamics and Acoustics of the Virginia Tech Stability Tunnel Anechoic System." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34479.

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The acoustic treatment and calibration of a new anechoic system for the Virginia Tech Stability Wind Tunnel has been performed. This novel design utilizes Kevlar cloth to provide a stable flow boundary, which eliminates the need for a free jet and jet catcher. To test this concept a series of measurements were performed both to validate the reduction in overall test section noise levels and to ascertain the effect of these modifications on the test section aerodynamics. An extensive program of experiments has been conducted to examine the performance of this new hardware under a range of c
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Stoker, Robert W. "A method to separate wind-tunnel background noise and wind noise from interior measurements." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/12032.

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36

Yatsco, Michael P. "Numerical Analysis and Wind Tunnel Validation of Wind Deflectors for Rooftop Solar Panel Racks." Youngstown State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1310680204.

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37

Reinap, Ausra. "Aerosol deposition to coastal forests: a wind tunnel approach." Doctoral thesis, Linnéuniversitetet, Institutionen för naturvetenskap, NV, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-11999.

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Aerodynamically rough surfaces of forests provide for efficient air/ canopy exchange of mass, heat and momentum. In that context, the effects of forest edges come into focus, and therefore, coastal-zone forests constitute aparticular concern. Aerosol-sink modelling is of importance to the global-scalecontext, because sink strengths influence the concentration of aerosol particles in the atmosphere, and that concentration, in turn, influences climate. Dry deposition models are insufficient due to a lack of semi-empirical data and because of difficulties in parameterization of the efficiency (E)
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38

Kounenis, Charalampos. "Effects of wind-tunnel simulation of on-road conditions." Thesis, Durham University, 2018. http://etheses.dur.ac.uk/12970/.

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A road vehicle experiences different conditions on the road than the ones in the development environment such as wind-tunnel and CFD. In this work, on-road unsteadiness together with moving ground and rotating wheels were studied as the on-road environment. These conditions were then investigated using full-size and model-scaled vehicles, looking their impact on aerodynamic force coefficients, rear wake structures and in particular aeroacoustics. Reproducing the effects of unsteady wind using a Turbulence Generation System(TGS) in the wind-tunnel showed that while the on-road yaw angle is vari
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39

Pattinson, John. "Development and evaluation of a wind tunnel manoeuvre rig." Thesis, University of Bristol, 2010. http://hdl.handle.net/1983/6a7d4b89-aada-4e48-8d12-92cadeac3f2a.

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A novel wind tunnel rig, which can be used to collect data from high incidence, large amplitude manoeuvres is presented. The "manoeuvre rig" is a horizontal-pendulum type rig that is capable of large amplitude motions in up to five degrees of freedom. The rig consists of. two gimbals, an arm to provide an element of translation to the model centre of gravity, an aerodynamic compensation device, and a scale aircraft model. It is remotely controlled allowing largely unhindered motion and the potential for the investigation of feedback control laws. To assess the manoeuvre rig concept, a pilot ri
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40

Zorrilla, Martínez Rubén. "Towards the virtual wind tunnel for civil engineering applications." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/671768.

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This thesis develops a numerical tool (the Virtual Wind Tunnel, VWT) for the resolution of problems involving fluid flow around structures. Due to the limitations that traditional methods may have in this context, the VWT is based on the use of fixed mesh technologies (CutFEM-type) combined with an implicit representation of the embedded bodies. One of the main contributions of the thesis is the use of such fixed mesh methods to solve lightweight thin-walled structures problems. Hence, two embedded formulations capable of representing the flow around bodies with and without internal volume
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Frison, Giovanni. "Aeroelastic and aerodynamic wind tunnel tests for tall buildings." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3423186.

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Starting from the consolidated concept of aerodynamic model, a benchmark is proposed to further asses an extend its capability of correctly identify the dynamic response of a tall building, devoting particular attention to the contribution of higher-order modes and the possible presence of aerodynamic damping. Being the extrema ratio in terms of accuracy and reliability, a full-aeroelastic model of a tall building is presented as the subject of comparison. The complexity involved in the dynamic wind-tunnel scaling led to the definition of a novel semi-automatized procedure. Based on the author
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Westin, Michelle Fernandino. "Aeroelastic modeling and experimental analysis of a flexible wing for wind tunnel flutter test." Instituto Tecnológico de Aeronáutica, 2010. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1121.

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The objective of this work is to investigate the flutter phenomena experimentally, which will unify high aspect ratio wings design for wind tunnel flutter tests (Dowell and Tang, 2002), cheaper aeroelastic models construction and a procedure used by Sheta, Harrand, Thompson and Strganac (2002) to identify the flutter onset power spectral density versus the frequency. Initially, an experimental model developed by Dowell and Tang (2002) has been considered as a baseline model and, from this point, two new models with different wing configurations were determined, including the slender body at wi
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Hameury, Michel. "Development of the tolerant wind tunnel for bluff body testing." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27311.

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In conventional wind tunnels the solid-wall or open-jet test section imposes on the flow field around the test model new boundary conditions absent in free air. Unless a small model is used, the solid-wall test section generally increases the loadings on the model while the open-jet boundary decreases the loadings compared to the unconfined case. However, the development of a low wall-interference test section and its successful demonstration would allow the testing of relatively large models without the application of often uncertain correction formulae. The Tolerant wind tunnel, which makes
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Jones, Gregory Stephen. "The measurement of wind tunnel flow quality at transonic speeds." Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39109.

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The measurement of wind tunnel flow quality for the transonic flow regime has been plagued by the inability to interpret complex unsteady flow field information obtained in the free stream. Traditionally hot wire anemometry and fluctuating pressure techniques have been used to quantify the unsteady characteristics of a wind tunnel. This research focuses on the application of these devices to the transonic flow regime. Utilizing hot wire anemometry, one can decompose the unsteady flow field with a three sensor technique, to obtain fluctuations associated with the velocity, density, and total t
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Letchford, C. W. "Pneumatic averaging and its application in wind engineering." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233481.

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46

Styles, Julie M. "A wind tunnel study of the velocity field above a model plant canopy." [Canberra] : CSIRO Land and Water, 1997. http://nla.gov.au/nla.arc-13482.

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Thesis (B.Sc. (Honours)) - Australian National University, 1997.<br>Title from title screen (viewed on May 20, 2002). "A thesis submitted in partial fulfilment of the requirements for the Degree of Bachelor of Science (Honours)"--Title screen. Bibliography: p. 64-66. Available full text via the internet.
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Griffith, Dwaine O. "Turbulence measurements and noise generation in a transonic cryogenic wind tunnel." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/45979.

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<p>A high-frequency combination probe was used to measure dynamic flow quality in the test section of the NASA Langley 0.3-m Transonic Cryogenic Tunnel. The probe measures fluctuating stagnation (total) temperature and pressure, static pressure, and flow angles in two orthogonal planes. Simultaneous unsteady temperature and pressure measurements were also made in the settling chamber of the tunnel. The data show that the stagnation temperature fluctuations remain constant, and the stagnation pressure fluctuations increase by a factor of two, as the flow accelerates from the settling cha
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Warsido, Workamaw Paulos. "Reducing Uncertainties in Estimation of Wind Effects on Tall Buildings Using Aerodynamic Wind Tunnel Tests." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/939.

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Tall buildings are wind-sensitive structures and could experience high wind-induced effects. Aerodynamic boundary layer wind tunnel testing has been the most commonly used method for estimating wind effects on tall buildings. Design wind effects on tall buildings are estimated through analytical processing of the data obtained from aerodynamic wind tunnel tests. Even though it is widely agreed that the data obtained from wind tunnel testing is fairly reliable the post-test analytical procedures are still argued to have remarkable uncertainties. This research work attempted to assess the uncert
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49

Chen, Yan-Jhih, and 陳彥志. "Wind Tunnel Experiments of Wind-driven Ventilation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/spc42y.

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碩士<br>國立中央大學<br>土木工程研究所<br>96<br>The wind-driven ventilation for buildings is dependent on the pressure difference between internal and exterior pressure. This study uses theoretical and experimental approaches to investigate wind-driven ventilation. The experiments were carried out in a large scale wind tunnel to study the influences of wind speed, attack angle, size and shape of opening and outdoor flow conditions (steady flow, turbulent flow and gusty flow). Besides, a wind-pressure balance model was developed to calculate the ventilation rate depending on the exterior pressure, opening
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Molina, Andreu Carbó. "Wind tunnel testing of small Vertical-Axis Wind Turbines for urban areas." Doctoral thesis, 2019. http://hdl.handle.net/2158/1179097.

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Abstract:
The implementation of small vertical-axis wind turbines (VAWTs) in urban environments is being studied by the scientific community to complement large wind farms in wind energy generation. The technology is, however, far from maturity due to the complexity of urban flows and the lack of knowledge in the field. This thesis focuses on turbulence, one of the main characteristics of urban flows, and its influence on VAWT performance. Its objective is to generate turbulent wind conditions inside a wind tunnel and testing a VAWT to determine how turbulence intensity (Iu) and integral length scale (L
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