Flat Solitary Waves due to a Submerged Body Moving in a Stratified Fluid

WEI Gang; SU Xiao-Bing; LU Dong-Qiang; YOU Yun-Xiang; DAI Shi-Qiang

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Flat Solitary Waves due to a Submerged Body Moving in a Stratified Fluid

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A theoretical model for interaction of a submerged moving body with the conjugate flow in a three-layer fluid is proposed to depict the internal flat solitary wave, which is observed in experiments conducted by the present authors. A set of coupled nonlinear algebraic equations is derived for the interracial displacements. The numerical results indicate that (a) the conjugate flow due to a two-dimensional body moving at the bottom possesses an apparent behaviour with two convex interfaces; (b) the solution satisfying the existence criterion is always unique near the relatively stable state of system. Theoretical analysis is qualitatively consistent with the experimental results obtained.

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《中国物理快报：英文版》 |2008年第6期|2128-2131|共4页
作者
WEI Gang; SU Xiao-Bing; LU Dong-Qiang; YOU Yun-Xiang; DAI Shi-Qiang;
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作者单位

Faculty of Science, PLA University of Science and Engineering, Nanjing 211101;

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072;

Faculty of Science, PLA University of Science and Engineering, Nanjing 211101;

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072;

School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200030;

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072;

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正文语种 chi
中图分类物理学;
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Flat Solitary Waves due to a Submerged Body Moving in a Stratified Fluid

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