Characterization of the cavitating flow in converging-diverging nozzle based on experimental investigations

被引：12

作者：

Rudolf, Pavel ^{[1
]}

Hudec, Martin ^{[1
]}

Griger, Milan ^{[1
]}

Stefan, David ^{[1
]}

机构：

[1] Brno Univ Technol, Fac Mech Engn, V Kaplan Dept Fluids Engn, Brno 61669, Czech Republic

来源：

EFM13 - EXPERIMENTAL FLUID MECHANICS 2013 | 2014年 / 67卷

关键词：

D O I：

10.1051/epjconf/20146702101

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Cavitation phenomena occuring in converging-diverging nozzle (Venturi tube) are described in the paper. A closed test circuit with possibility to control both flow rate and static pressure level were used. Loss coefficient was evaluated for different sigma numbers resulting in full "static" characterization of the nozzle. Visualizations of the cavitation pattern development were acquired and matched with evolution of the loss coefficient. Three cavitation regimes are described: partial cavitation, fully developed cavitation, supercavitation.

引用

页数：6

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