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RESEARCH PAPERS

Second-Order Accurate Explicit Finite-Difference Schemes for Waterhammer Analysis

[+] Author and Article Information
M. H. Chaudhry

Department of Civil and Environmental Engineering, Washington State University, Pullman, Wash. 99164

M. Y. Hussaini

Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, Hampton, Va.

J. Fluids Eng 107(4), 523-529 (Dec 01, 1985) (7 pages) doi:10.1115/1.3242524 History: Received April 01, 1985; Online October 26, 2009

Abstract

Three second-order accurate explicit finite-difference schemes—MacCormack’s method, Lambda scheme and Gabutti scheme—are introduced to solve the quasilinear, hyperbolic partial differential equations describing waterhammer phenomenon in closed conduits. The details of these schemes and the treatment of boundary conditions are presented. The results computed by using these schemes for a simple frictionless piping system are compared with the exact solution. It is shown that for the same accuracy, second-order schemes require fewer computational nodes and less computer time as compared to those required by the first-order characteristic method.

Copyright © 1985 by ASME
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