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RESEARCH PAPERS

An Efficient Method for Simulating Frequency-Dependent Friction in Transient Liquid Flow

[+] Author and Article Information
A. K. Trikha

Boeing Commercial Airplane Co., Seattle, Wash.

J. Fluids Eng 97(1), 97-105 (Mar 01, 1975) (9 pages) doi:10.1115/1.3447224 History: Received November 21, 1974; Online October 12, 2010

Abstract

An efficient procedure is developed for simulating frequency-dependent friction in transient laminar liquid flow by the method of characteristics. The procedure consists of determining an approximate expression for frequency-dependent friction such that the use of this expression requires much less computer storage or computation time than the use of the exact expression. The derived expression for frequency-dependent friction approximates the exact expression very well in both time and frequency domains. Calculated results for a test system are compared with the experimental results so show that the approximate expression predicts accurately the surge pressures, pressure wave distortion as well as pressure attenuation in a liquid line.

Copyright © 1975 by ASME
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