A novel wind-tunnel facility has been designed for measurement of lift and drag on micromachined airfoils. Due to the structural and geometric constraints of the airfoils being tested, the wind tunnel has a 1-centimeter cross-section. This small size allows the use of a 100-1 contraction area, and extremely fine turbulence screens, creating an ultra-low turbulence facility. Preliminary velocity data obtained with a hot-wire probe indicate a successful design, with uniform flow, and turbulence intensities below 1%.
Design of a Low-Turbulence Facility for Micro-Scale Aerodynamics
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Martin, MJ, Boyd, ID, & Bernal, LP. "Design of a Low-Turbulence Facility for Micro-Scale Aerodynamics." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 1: Fora, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 1205-1209. ASME. https://doi.org/10.1115/FEDSM2002-31156
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