Evaluation of Dolphin Swimming Speed and Thrust Based on CFD
Evaluation of Dolphin Swimming Speed and Thrust Based on CFD
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基于CFD的海豚游泳速度和推力评估
DOI：
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发表时间：
2016
影响因子：
0.8
通讯作者：
D. Feng
中科院分区：
文献类型：
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作者：
Xianzhou Wang;Peng Wei;Ye Yuan;Zhiguo Zhang;D. Feng
多年来，海豚的最大游泳速度几乎完全通过观测来报道。本文的目的是利用理论分析和数值方法来估计海豚的游泳速度。采用FLUENT软件求解器和用户定义函数(UDF)动态网格方法模拟海豚游泳时的踢腿动作。选择三个峰峰值尾部运动幅度和频率进行研究。将海豚抵抗力的模拟结果与实验结果进行了比较。将海豚尾鳍运动产生的推力与参考文献中的可用数据进行了比较。综上所述，海豚之所以能达到很高的速度，是因为其尾翼运动产生的推力大，推进效率高。
For many years, the maximum swimming speeds of dolphins have been reported almost entirely through observations. The objective of this paper is to estimate the swimming speed of dolphins using a theoretical analysis and numerical method. The FLUENT software solver and User Defined Function (UDF) dynamic mesh method were used to simulate the dolphin kicking during its swimming. Three peak-to-peak tail motion amplitudes and frequencies were chosen to study. The simulation results of the resistance of dolphin were compared with experimental results. The thrusts generated by dolphin fluke motion were compared with available data from the references. In conclusion, the dolphin can reach a very high speed because of its large thrust generated by its fluke motion and high propulsive efficiency.