Numerical simulation of vortex evolution based on adaptive wavelet method

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Numerical simulation of vortex evolution based on adaptive wavelet method水利论文C{.w'y5T7b2s

9n8SS)@y&H0Abstract: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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%lhXa|,n0Yong ZHAO[1] Zhi ZONG[1] Wen-nan ZOU[2]水利论文v8@ZmNi YK6p

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School 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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vortex evolution水利论文s(f| { T"s-M.M*oY5\&\

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coherent structure水利论文#L&f AF$W)hg!u

1q#h#@)Y$r|,C*X0vorticity equation水利论文{']_EiM$PM

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turbulence

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,Y;iU8Fh0adaptive wavelet application structures vortex motion errors problems results initial control two

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._(rM9j\9mS0the 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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