Lattice Boltzmann simulation of the flow over wavy surface

摘要：

This paper deals with the simulation of the two-dimensional flows over wavy surfaces and the investigation of drag reduction for the laminar flow over wavy surface. The flows over the different concave surfaces are simulated based on the lattice Boltzmann method. The surfaces are sinusoidal and trigonal concave surfaces. The boundary treatment of second order accuracy and the formula for evaluating the forces acting on the curved surface are constructed by the momentum-exchange method in the present simulation. The numerical results show that for the laminar flow the drag of the trigonal concave surface is less than that of the sinusoidal surface. The lattice Boltzmann method is reliable, accurate and effective for this kind of calculation.

关键词： lattice Boltzmann method drag coefficient wavy surface

作者: W.P.Shi L.X.Ding H.C.Zheng

作者单位: College of Mathematics, Jilin University, Changchun, 130012 China

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）