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RESEARCH PAPERS

A Calculation Procedure for Three-Dimensional, Viscous, Compressible Duct Flow. Part II—Stagnation Pressure Losses in a Rectangular Elbow

[+] Author and Article Information
John Moore, Joan G. Moore

University Engineering Department, Cambridge University, Cambridge, England

J. Fluids Eng 101(4), 423-428 (Dec 01, 1979) (6 pages) doi:10.1115/1.3449000 History: Received February 21, 1978; Online October 12, 2010

Abstract

Three-dimensional, turbulent flow is calculated in an elbow used by Stanitz for an experimental investigation of secondary flow. Calculated wall-static pressure distributions and distributions of stagnation-pressure loss, both spatial and as a function of mass-flow ratio, are in good agreement with Stanitz’ measurements, justifying the use of a relatively simple mixing-length viscosity model. The calculation procedure and the results of two-dimensional “inviscid” flow calculations used as the starting point for the present calculations are described in Part I of this paper. The computed flow field shows clearly the development of the passage vortices.

Copyright © 1979 by ASME
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