Numerical Analysis of Turbulent Flow in a Two-Dimensional Nonsymmetric Plane-Wall Diffuser

[+] Author and Article Information
Mingshun Yuan

Department of Hydraulic Engineering, Tsinghua University, Beijing, People’s Republic of China

Charles C. S. Song, Jianming He

St. Anthony Falls Hydraulic Laboratory, Department of Civil and Mineral Engineering, University of Minnesota, Minn. MN 55414

J. Fluids Eng 113(2), 210-215 (Jun 01, 1991) (6 pages) doi:10.1115/1.2909482 History: Received August 22, 1989; Online May 23, 2008


By solving weakly compressible flow equations with application of Smogrinsky’s subgrid-scale turbulent model and partial-slip condition at the wall, a two-dimensional analysis is made on the flow of Re = 1.2 × 106 in a nonsymmetric planewall diffuser. The calculated velocity profiles are compared with the measured data, and the effect of inlet and outlet conditions on diffuser performance is evaluated. Comparison is also made between the symmetric and non-symmetric plane-wall diffusers.

Copyright © 1991 by The American Society of Mechanical Engineers
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