An Explicit Non-Real Time Data Reduction Method of Triple Sensors Hot-Wire Anemometer in Three-Dimensional Flow

[+] Author and Article Information
Y. T. Chew

Department of Mechanical and Production Engineering, National University of Singapore, Singapore

R. L. Simpson

Department of Aerospace and Ocean Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

J. Fluids Eng 110(2), 110-119 (Jun 01, 1988) (10 pages) doi:10.1115/1.3243521 History: Received April 02, 1986; Online October 26, 2009


An explicit non-real time method of reducing triple sensor hot-wire anenometer data to obtain the three mean velocity components and six Reynolds stresses, as well as their turbulence spectra in three-dimensional flow is proposed. Equations which relate explicitly the mean velocity components and Reynolds stresses in laboratory coordinates to the mean and mean square sensors output voltages in three stages are derived. The method was verified satisfactorily by comparison with single sensor hot-wire anemometer measurements in a zero pressure gradient incompressible turbulent boundary layer flow. It is simple and requires much lesser computation time when compared to other implicit non-real time method.

Copyright © 1988 by ASME
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