| Qiao Fangli.The mixing mechanism in the formation of ocean shear waves[J].Acta Oceanologica Sinica,1996,(2):145-158 |
| The mixing mechanism in the formation of ocean shear waves |
| The mixing mechanism in the formation of ocean shear waves |
| 投稿时间：1995-11-10 修订日期：1996-01-30 |
| DOI： |
| 中文关键词: Ocean shear wave Lagrangian tracing mixing |
| 英文关键词:Ocean shear wave Lagrangian tracing mixing |
| 基金项目:The project was supported by the National Natural Science Foundation of China. |
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| 中文摘要: |
| Based on the quasi-geostrophic vorticity equation,the present paper simulates the water mixing process in the formation of ocean shear waves using large eddy simulation methods.From Lagrangian tracing,we study the ocean shear wave's changing from wave character to vortex character.The distance between tracer groups increases near the ocean shear wave area,and decreases between ocean shear waves.The tracers that are uniformally distributed in space do not retain the uniform character in the mixing process.The frequency shift of the perturbation waves is caused by their nonlinear interaction.The wave number ratio and phase lag of the initial perturbation waves effect the mixing process,but the results show tittle difference.The increase of the visrnsity coefficient will restrain the mixing process. |
| 英文摘要: |
| Based on the quasi-geostrophic vorticity equation,the present paper simulates the water mixing process in the formation of ocean shear waves using large eddy simulation methods.From Lagrangian tracing,we study the ocean shear wave's changing from wave character to vortex character.The distance between tracer groups increases near the ocean shear wave area,and decreases between ocean shear waves.The tracers that are uniformally distributed in space do not retain the uniform character in the mixing process.The frequency shift of the perturbation waves is caused by their nonlinear interaction.The wave number ratio and phase lag of the initial perturbation waves effect the mixing process,but the results show tittle difference.The increase of the visrnsity coefficient will restrain the mixing process. |
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