Numerical simulation of vortex evolution based on adaptive wavelet method

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Numerical simulation of vortex evolution based on adaptive wavelet method

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Abstract:The application of the wavelet method to vortex motion prediction is investigated. First, the wavelet method is used to solve two initial boundary problems so as to verify its abilities of controlling numerical errors and capturing local structures.Then, the adaptive wavelet method is used to simulate the vortex emerging process. The results show that the wavelet method can control numerical errors easily, can capture local structures adaptively, and can predict the vortex fluctuation evolution. Therefore,the application of the wavelet method to turbulence is suggested.

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Thp6B,qE0School of Naval Architecture, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, Liaoning Province, P.R.ChinaInstitute of Engineering Mechanics, Nanchang University, Nanchang 330029, P.R.China

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Keywords:水利论文 V*Tt+w ^4Q H;U


adaptive wavelet水利论文c{0t5bVkU


vortex evolution

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coherent structure


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l(n CGn#cTr6R'J0adaptive wavelet application structures vortex motion errors problems results initial control two

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the Foundation for Innovative Research Groups of the National Natural Science Foundation of China,the National Program on the Key Basic Research Project of China (973 Program)

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