A Random Cell Model for Pressure Drop Prediction in Fibrous Filters

[+] Author and Article Information
C. P. Yu, T. T. Soong

Department of Engineering Science, Aerospace Engineering, and Nuclear Engineering, State University of New York at Buffalo, Buffalo, N. Y.

J. Appl. Mech 42(2), 301-304 (Jun 01, 1975) (4 pages) doi:10.1115/1.3423571 History: Received May 01, 1974; Revised November 01, 1974; Online July 12, 2010


A filter model consisting of a random distribution of parallel fibers is proposed to account for nonuniform fiber spacings in a real filter. The average pressure drop across this filter is determined based upon a random cell model of hydrodynamics. The results are favorably compared with existing experimental data. The computation is also extended to the slip flow regime where the Knudsen number is not negligible.

Copyright © 1975 by ASME
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