Numerical computation of the transient change of flow in a pipe from partial to full depth

Kullmann, László (2001) Numerical computation of the transient change of flow in a pipe from partial to full depth. JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS, 2 (1). pp. 53-59. ISSN 1586-2070

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Abstract

Three difference schemes are compared in the computation of open channel flow in circular pipes. During operation parts of the pipe may work with full and other parts with partial depth. Time steps are restricted in characteristics method and explicit finite difference schemes but they describe the flow properly, while implicit finite volume methods work with much larger time steps having the shortage of unrealistic minor oscillations.

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