The numerical study of wave-induced pore water pressure response in highly permeable seabed

来源 :Acta Oceanologica Sinica | 被引量 : 0次 | 上传用户:liongliong489
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The coupling numerical model of wave interaction with porous medium is used to study waveinduced pore water pressure in high permeability seabed.In the model,the wave field solver is based on the two dimensional Reynolds-averaged Navier-Stokes(RANS) equations with a k-ε closure,and Forchheimer equations are adopted for flow within the porous media.By introducing a Velocity-Pressure Correction equation for the wave flow and porous flow,a highly efficient coupling between the two flows is implemented.The numerical tests are conducted to study the effects of seabed thickness,porosity,particle size and intrinsic permeability coefficient on regular wave and solitary wave-induced pore water pressure response.The results indicate that,as compared with regular wave-induced,solitary wave-induced pore water pressure has larger values and stronger action on seabed with different parameters.The results also clearly show the flow characteristics of pore water flow within seabed and water wave flow on seabed.The maximum pore water flow velocities within seabed under solitary wave action are higher than those under regular wave action. The coupling numerical model of wave interaction with porous medium is used to study waveinduced pore water pressure in high permeability seabed. In the model, the wave field solver is based on the two dimensional Reynolds-averaged Navier-Stokes (RANS) equations with a k -ε closure, and Forchheimer equations are for flow within the porous media. By introducing a Velocity-Pressure Correction equation for the wave flow and porous flow, a highly efficient coupling between the two flows is. The numerical tests are conducted to study the effects of seabed thickness, porosity, particle size and intrinsic permeability coefficient on regular wave and solitary wave-induced pore water pressure response. Results that results in as compared with regular wave-induced, solitary wave-induced pore water pressure has larger values and stronger action on seabed with different parameters.The results also clearly show the flow characteristics of pore water flow within seabed and water wave flow on seabed.The maximum pore water flow velocities within seabed under solitary wave action are higher than those under regular wave action.
其他文献
将祖国的优秀文化传播到国外是,我的一个梦想,也是我现在正在做的事。但是,任何一种文化在其推广和传播上,都不是一帆风顺的,常常是苦与甜并存,在日本推广太极拳和太极文化也是如此。  将太极拳推广到国外,让更多的人认识太极、走进太极,是我多年来的一个心愿。在到日本之前,我听说太极拳在日本是非常受欢迎的,我信心满满地认为,去日本教太极拳、推广太极文化应该会很顺利吧。  然而到了日本之后,我才发现真实的情况