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

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...

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Published in:Journal of fluids engineering 1997-12, Vol.119 (4), p.847-851
Main Authors: Sodre´, J. R, Parise, J. A. R
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Language:English
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description 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.
doi_str_mv 10.1115/1.2819507
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source ASME Transactions Journals (Archives)
subjects Correlation methods
Heat engines
Packed beds
Pressure drop
Reynolds number
Screens (sizing)
Turbulent flow
Wall flow
title Friction Factor Determination for Flow Through Finite Wire-Mesh Woven-Screen Matrices
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