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Showing 1 to 7 of 7 for “"Wind tunnel models"”.
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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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Development of Methods for Improved Data Integrity and Efficient Testing of Wind Tunnel Models for Dynamic Test Conditions in Unsteady and Nonlinear Flight Regimes
… even above maximum lift. Current aerodynamic models are inadequate in predicting flight characteristics in the expanded envelope, such as rapid aircraft departures and other unusual motions. Unsteady flows of aircraft are of real concern. The ability to accurately measure aerodynamic loads …
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Prediction and experimental evaluation of planar wing spanloads for minimum drag
… from theoretical predictions and experimental wind-tunnel measurements. The optimum spanloads were found using a Lagrange multiplier optimization method. They were designed with a prescribed wing-root bending moment constraint with and without incorporating viscous representation. Wind-tunnel …
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Bi-stability in the Wakes of Platooning Ahmed Bodies
… static pressures were measured on two identical wind tunnel models at various following distances to uncover the time-dependent interactions between platooning vehicles. Bi-stability is highly dependent on symmetry and the uniformity of oncoming flow, and it is shown that a shifting bi-stable …
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Experimental analysis and prospective flow diagnostic applications for fluorescence dye-doped microparticles
… flow diagnostic techniques for applications in wind tunnels. PSLs with mean diameter on the order of 1 μm were provided by collaborators at NASA Langley Research Center and measurements of simultaneous Mie scattering and laser induced fluorescence (LIF) signals were obtained with the goal of …
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Ram pressure correlations for aspirated cylinders
Design of automobile cooling systems involves tradeoffs in the sizing of grille openings to provide adequate cooling airflow and the tendency to reduce grille opening size to decrease vehicle cooling drag and produce aesthetically pleasing designs. Air that enters the cooling system of an …