Topological analysis of the formation of Jet-Wake flow pattern in centrifugal impeller channel |
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Authors: | Zheng Qun Liu Shun-long |
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Affiliation: | (1) School of Power and Nuclear Energy Engineering, Harbin Engineering University, 150001 Harbin, China |
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Abstract: | Topological analyses are carried out for the numerical results of internal flow field in centrifugal impeller. Topological rules of the singular point characteristics of the limiting streamline are derived and used to determine three dimensional separation patterns in centrifugal impeller and to verify the numerical results. The results reveal that the wake is saddle to nodal closed separation and the formation, its onset point and its developing process of Jet-Wake Flow pattern in centrifugal impeller are presented in this paper. |
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Keywords: | Jet-Wake flow patter topological analysis numerical computation centrifugal impeller |
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