节点文献
A Numerical Study on the Structure and Dynamics of Turbulence in Oscillatory Bottom Layer Flow over A Flat or Rippled Bed
【Abstract】 This paper is mainly concerned with the turbulence in oscillatory bottom boundary layers over flat or rippled seabeds.Owing to the strong shear and anisotropy of oscillatory flow,an anisotropic turbulence mathematical model is set up using the finite difference method,and the computational results of the model are verified by comparisons with well-known experiments.Turbulent energy,dissipation and Reynolds stress can all be computed with this mathematical mod-el,and the development processes of a large coherent vortex structure over a rippled bed,such as main flow separation,coherent vortex formation and curling,coherent vortex ejection and breaking up,are successfully simulated.
【关键词】 oscillatory boundary layer flow；
anisotropic turbulence model；
sand ripples $$$$；
【Key words】 oscillatory boundary layer flow； anisotropic turbulence model； sand ripples $$$$；
【Key words】 oscillatory boundary layer flow； anisotropic turbulence model； sand ripples $$$$；
【基金】 This research work was supported by the National Natural Science Foundation of China (NSFC);the ResearchGrants Council of the Hong Kong Special Administrative Region,through Projects 40376028 ,50279030 ,HKU7081/02E,and HKU7199/03E.
- 【文献出处】 China Ocean Engineering ,中国海洋工程(英文版) , 编辑部邮箱 ,2006年01期
- 【分类号】TV135;P753
- 【被引频次】5
- 【下载频次】92