OSCILLATORY BOUNDARY LAYER FLOW SIMULATION OVER RIPPLES VIA LATTICE BOLTZMANN METHOD

摘要：

Numerical simulation of the oscillatory boundary layer induced by an oscillatory pressure gradient over stationary ripple-covered bed is presented. The simulation is performed using a promising numerical technique named Lattice Boltzmann Method. A second-order accurate treatment of the curved boundary condition in Lattice Boltzmann Method is adopted during the simulation process in order to overcome the difficulty of dealing with boundary of ripples. The dynamics of the vortices and the relative streamwise velocity distribution above different locations of the ripples during an oscillatory period are presented and analyzed.

作者: Lei Ding Qing-He Zhang

作者单位: student, School of Civil Engineering, Tianjin University, Tianjin 300072, China School of Civil Engineering, Tianjin University, Tianjin 300072, China

会议类型: 国际会议

会议名称: 第四届亚太地区海岸会议(the Fourth International Conference on Asian and Pacific Coasts)

会议地点: 南京

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）