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RESEARCH PAPERS

Friction Factor Determination for Flow Through Finite Wire-Mesh Woven-Screen Matrices

[+] Author and Article Information
J. R. Sodré

Pontificia Universidade Católica de Minas Gerais, Department of Mechanical Engineering, Av. Dom José Gaspar, 500, 30535-610, Belo Horizonte, MG, Brazil

J. A. R. Parise

Pontificia Universidade Católica do Rio de Janeiro, Department of Mechanical Engineering, Rua Marquês de São Vicente, 225, 22453-900 Rio de Janeiro, Brazil

J. Fluids Eng 119(4), 847-851 (Dec 01, 1997) (5 pages) doi:10.1115/1.2819507 History: Received May 28, 1996; Revised June 10, 1997; Online January 22, 2008

Abstract

Experiments were carried out to determine the pressure drop through an annular conduit filled with a plain square wire-mesh woven-screen matrix. The tests involved turbulent fully developed flow of air at steady-state conditions, with the modified Reynolds number (M(1−ε )/Re), based on the hydraulic radius of the packed bed, ranging from 5 × 10−4 to 5 × 10−3 . The test section was built according to the geometry of a Stirling engine, simulating an annular regenerator with a radius ratio of 1.369 and a screen of mesh size 10. A corrected Ergun equation was used to correlate the experimental data, considering the wall effects. Comparisons with results obtained by other authors extended the validation of the correlation obtained to a wider range of modified Reynolds numbers (1 × 10−4 ≤ M(1 − ε )/Re ≤ 1) and to different screen mesh sizes. The correlation has been found to work for annular and circular cross-section beds.

Copyright © 1997 by The American Society of Mechanical Engineers
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