Cavitating Flow over a Mini Hydrofoil

LUO Xian-Wu; JI Bin; ZHANG Yao; XU Hong-Yuan

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Cavitating Flow over a Mini Hydrofoil

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We consider a cavitating flow over a mini hydrofoil (foil profile: Clark-Y-11.7) having a 14 mm chord length in a cavitation tunnel at various cavitation numbers. Experimental observations show that cavitating flows over a miniature hydrofoil display several types of cavitation behavior, such as cavitation inception, sheet cavitation, cloud cavitation and super cavitation with the decreasing cavitation number. Under the same cavitation conditions, cavitation over a mini hydrofoil would be suppressed in comparison to cavitation over an ordinary hydrofoil. This cavitation scale effect is suspected to be caused by the Reynolds number.%We consider a cavitating flow over a mini hydrofoil (foil profile:Clark-Y-11.7) having a 14mm chord length in a cavitation tunnel at various cavitation numbers.Experimental observations show that cavitating flows over a miniature hydrofoil display several types of cavitation behavior,such as cavitation inception,sheet cavitation,cloud cavitation and super cavitation with the decreasing cavitation number.Under the same cavitation conditions,cavitation over a mini hydrofoil would be suppressed in comparison to cavitation over an ordinary hydrofoil.This cavitation scale effect is suspected to be caused by the Reynolds number.

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《中国物理快报：英文版》 |2012年第1期|198-201|共4页
作者
LUO Xian-Wu; JI Bin; ZHANG Yao; XU Hong-Yuan;
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State Key Laboratory for Hydroscience and Engineering, Tsinghua University, Beijing 100084;

State Key Laboratory for Hydroscience and Engineering, Tsinghua University, Beijing 100084;

China Ship Development and Design Center, Wuhan 430064;

State Key Laboratory for Hydroscience and Engineering, Tsinghua University, Beijing 100084;

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Cavitating Flow over a Mini Hydrofoil

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