Suarface Effects of Internal Wave Generated by a Moving Source in a Two-Layer Fluid of Finite Depth

WEI Gang; LE Jia-Chun; DAI Shi-qiang

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Article Navigation > Applied Mathematics and Mechanics > 2003 > 24(9): 906-918

WEI Gang, LE Jia-Chun, DAI Shi-qiang. Suarface Effects of Internal Wave Generated by a Moving Source in a Two-Layer Fluid of Finite Depth[J]. Applied Mathematics and Mechanics, 2003, 24(9): 906-918.

Citation:

WEI Gang, LE Jia-Chun, DAI Shi-qiang. Suarface Effects of Internal Wave Generated by a Moving Source in a Two-Layer Fluid of Finite Depth[J]. Applied Mathematics and Mechanics, 2003, 24(9): 906-918.

Citation:

WEI Gang, LE Jia-Chun, DAI Shi-qiang. Suarface Effects of Internal Wave Generated by a Moving Source in a Two-Layer Fluid of Finite Depth[J]. Applied Mathematics and Mechanics, 2003, 24(9): 906-918.

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Suarface Effects of Internal Wave Generated by a Moving Source in a Two-Layer Fluid of Finite Depth

1.
Shanghai Institute of Applied Mathematics & Mechanics, Shanghai University, Shanghai 200072, P.R.China;
2.
Institute of Science, University of Science and Technology, PLA Nanjing, Nanjing 211101, P.R.China

Received Date: 2002-02-01
Rev Recd Date: 2003-03-21
Publish Date: 2003-09-15

Abstract

Abstract

Based on the potential flow theory of water waves, the interaction mechanism between the free-surface and internal waves generated by a moving point source in the lower layer of a two-layer fluid was studied. By virtue of the method of Green. s function, the properties of the divergence field at the free surface were obtained, which plays an important role in the SAR image. It is shown that the coupling interaction between the surface-wave mode and internal-wave mode must be taken into account for the cases of large density difference between two layers, the source approaching to the pynocline and the total Froude number Fr close to the critical number Fr₂. The theoretical analysis is qualitatively consistent with the experimental results presented by Ma Hui-yang.
- internal wave,
- surface wave,
- stratified fluid,
- divergence field,
- wave-wave interaction

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References(22)

References

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