2013
IMAACA 2013 Proceeding
Bondgraphs modeling and simulation on dynamic characteristics of cavitating pump system
Authors: Kazuhiro Tanaka, Toshiyuki Sato, Hiroshi Tsukamoto, Takehisa Kohda, Katsuya Suzuki
Abstract
Internal flows including cavitation phenomena in a pump can be analyzed by CFD commercial codes and system performances are traditionally obtained by experimental tests. However, they cannot correctly analyze the dynamic characteristics of the system especially when the transients are very fast or the system sometimes becomes complicated according to cavitation phenomena. It is important to predict dynamic behaviors of the pump system in the development stage. 3D-CFD numerical calculation is so time-consuming to analyze total flow field in the system that it is useful to develop 1D-mathematical models to express the dynamic characteristics of the system. The mathematical models of a pump system already have been developed by Bondgraphs without cavitation phenomena. In this study, the numerical result of cavitating flow is considered into the system Bondgraphs.
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