Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"wind tunnel test"”.
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Wind tunnel test section design active flow control implementation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Development of Measurement Methods for Application to a Wind Tunnel Test of an Advanced Transport Model
… validation efforts. Cal Poly will complete a wind tunnel test on the Advanced Model for Extreme Lift and Improved Aeroacoustics (AMELIA) in the National Full-Scale Aerodynamics Complex (NFAC) 40 foot by 80 foot wind tunnel at NASA Ames Research Center in the summer of 2011. The development of …
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Benchmark of aerodynamic cycling helmets using a refined wind tunnel test protocol for helmet drag research
… is very important in the world of cycling. Wind tunnel research is conducted on most of the equipment that is used by a rider and is a critical factor in the advancement of the sport. However, to date, a comprehensive study of time-trial helmets has not been performed. This thesis presents …
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Measurement of flow boundary condition data and wing pressures in a wind tunnel test of a 45 deg swept wing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Sensitivity of Steel Purlins to Changes in Application of Wind Loads
This project studied the effects of wind tunnel test loads applied to purlins in low rise steel buildings compared to those determined with currently recognized wind loading provisions. The National Institute of Standards and Technology (NIST) database of low-rise building wind tunnel test data, …
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Evaluation of the dynamic characteristics of the K-Gill anemometer
… the anemometer with a hot wire system in a field test, after the static characteristics of the anemometer had been evaluated in a wind tunnel test. The wind tunnel test showed a non-linear and a non-cosine behavior, as shown in previous studies (Ataktürk, 1988; Pond et al., 1979). The turbulence …
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A Computational Approach For Investigating Unsteady Turbine Heat Transfer Due To Shock Wave Impact
… present in a previously performed unsteady wind tunnel experiment. The windtunnel experiment included unheated and heated flows over a cascade of highly loaded turbine blades. After the flow over the blades was established, a single shock with a pressure ratio of 1.1 was introduced into the …
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Qualitative Methods Used to Develop and Characterize the Circulation Control System on Cal Poly's AMELIA
… was a critical component of a highly complex wind tunnel model produced in order to fulfill the requirements of a NASA Research Announcement awarded to David Marshall of the Aerospace Engineering Department. The model was based on a next generation, 150 passenger, regional, cruise efficient, …
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Development of Computational and Experimental Benchmark Data for Wind Turbine Aeroelastic Algorithms
… of the Preliminary Aeroelastic Analysis of Wind Turbine (PAAC-WTB) algorithm, an algorithm that was recently developed in the Advanced Dynamic Research group. A preliminary wind tunnel test was performed on a 3D-printed reduced scale model of the National Renewable Energy Laboratory (NREL) …
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Product design and development of an aerodynamic hydration system for bicycling and triathlon
… performance over the current market solutions. A wind tunnel test validated a viable location on to place the fluid reservoir. Product specifications were derived from consumer needs and concepts were generated to fulfill those needs. Several iterations of CAD models of the entire product were …
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Development and Implementation of a Flight Test Program for a Geometrically Scaled Joined Wing SensorCraft Remotely Piloted Vehicle
The development and implementation of a flight test program for an unmanned aircraft is a multidisciplinary challenge. This thesis presents the development and implementation of a rigorous test program for the flight test of a Geometrically Scaled Joined Wing SensorCraft Remotely Piloted Vehicle …
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The effect of free stream disturbances and control surface deflections on the performance of the Wortmann airfoil at low Reynolds numbers
… Reynolds numbers between 50,000 and 500,000. The wind-tunnel testing conducted in the 6'x 6' Stability tunnel included strain-gauge data, pressure data, and flow-visualization studies. The laminar separation bubble which frequently occurs on the upper surface of the wing is found to dominate its …
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Experimental and numerical investigations on wind characteristics and wind induced vibrations of bridge structures
… researchers and engineers. For such structures, wind load has become one of the most important dominant loads under consideration in the analysis and design of structures. Thus, accurate and reliable evaluations of the wind characteristics are critical, as the evaluations may provide a solid …
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Experimental aero-acoustic assessment of swirling flows for drag applications
… A modular design was chosen for the model-scale wind-tunnel test article based on a full-scale diameter of 1.2 m to allow for the wind-tunnel testing of different swirl angles, including both stable swirling configurations and cases exhibiting vortex breakdown. Analyses of both aerodynamic and …
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Wing Deflection Analysis of 3D Printed Wind Tunnel Models
… 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 …
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A Study of Compressible Turbulent Free Shear Layers Using Laser Doppler Velocimetry (Supersonic Flow, Mixing, Recirculating)
… facing step was conducted. Two different wind tunnel test sections were used to achieve a constant pressure separation of the shear layer at the backstep corner so that the developing free shear layer was unaffected by separation effects. Sidewall static pressure measurements, Schlieren …
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Preliminary Test Predictions for Scale Ram-Air Parachute Testing
… the aerodynamic performance for experimental tests of ram-air parachutes in a wind tunnel. A scaled experimental test setup is developed for determining the aerodynamic coefficients of lift (𝐶𝐿) and drag (𝐶𝐷) conducted in a wind tunnel. Additionally, a CFD approach where a steady-state …
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An Experimental Study of Compressible Turbulent Reattaching Free Shear Layers
… step. In the first set of experiments, the wind tunnel test section was specifically designed to obtain flow separation at the step without any flow expansion or compression. In the second set of experiments, the reattaching free shear layer in the classical backstep model was studied. A …
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Aerodynamics study of the flowfield at a shelterbelt
… and yield enhancement. Whether performing a wind tunnel test, conducting a field observation, or implementing a numerical simulation to investigate shelterbelt effects, researchers are more interested in an optimum reduction in a thin air lasier near the ground on the leeside of the …
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Study of Far Wake of a Surface-Mounted Obstacle Subjected to Turbulent Boundary Layer Flows
… using a NACA 0012 airfoil placed within the wind tunnel test section. The measurements were acquired utilizing a spanwise traversing boundary layer rake and a point pressure sensing microphone array. The findings reveal that the presence of the obstacle introduces disruptions in the flow, …
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