C. Ghouila-Houri, A. Talbi, R. Viard, Q. Gallas, E. Garnier, P. Molton, J. Delva, A. Merlen, P. Pernod
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引用次数: 9
Abstract
This paper presents and discusses the results obtained with a MEMS high temperature gradient sensor for time-averaged and fluctuating skin-friction measurements in highly turbulent flows. Designed as a robust wall-mounted suspended hot-wire structure, the micro-sensor showed a high temperature variation for low power consumption. Successfully implemented into two air wind tunnels, the sensor was tested for velocities going up to 270 m/s, mean velocity of airliner cruise flights, and corresponding to a shear stress of 150 Pa. The microsensor thereby demonstrated its value for measuring turbulence in aerodynamic applications, particularly in aeronautics.
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