Hydrodynamic studies on two wiggling hydrofoils in an oblique arrangement

查看全文 作　　者：Xingjian [1]Lin;Guoyi [1]He;Xinyi [2]He;Qi [1]Wang;Longsheng [1]Chen

机构地区：[1]The School of Aircraft Engineering, Nanchang Hangkong University;[2]The School of Software, Nanchang Hangkong University

出　　处：《Acta Mechanica Sinica》索引2018年第34卷第3期,共6页

基　　金：supported by the National Natural Science Foundation of China (Grant 11462015) 摘　　要：The propulsive performance of an oblique school of fish is numerically studied using an immersed boundary technique. The effect of the spacing and wiggling phase on the hydrodynamics of the system is investigated. The hydrodynamics of the system is deeply affected by the spacing between each fish in the school. When the horizontal separation is smaller than the length of the fish body,the downstream fish exhibits a larger thrust coefficient and greater propulsive efficiency than the isolated fish. However,the corresponding values for the upstream fish are smaller.The opposite behavior occurs when the horizontal separation increases beyond the length of fish body. The propulsive performance of the entire oblique school of fish can be substantially enhanced when the separations are optimized. 关键词：水动力学水翼船学习摆动分离比边界技术数字地学校

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Hydrodynamic studies on two wiggling hydrofoils in an oblique arrangement

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