用格子Boltzmann方法模拟椭圆柱体在牛顿流体中的二维运动

LATTICE BOLTZMANN SIMULATION OF AN TWO-DIMENSIONAL MOVING ELLIPTIC CYLINDER IN A NEWTONIAN FLUID

用格子Boltzmann方法建立了椭圆柱体的二维运动模型,利用所建立的模型对椭圆柱体在牛顿流体中的二维运动进行了数值模拟,并通过对照圆柱体在相同条件下的运动,深入讨论了椭圆柱体二维运动的特征,得到了一些有意义的结果,所建立的模型,可以推广到对其他形状柱体二维运动的模拟.

A lattice Boltzmann model for the two-dimensional motion of an elliptic cylinder is derived.With the present model,the two-dimensional motion of the elliptic cylinder in a Newtonian fluid is simulated.Contrasting the motion of the elliptic cylinder with that of a circular cylinder under the same condition,this paper further discusses the motional properties of the elliptic cylinder,and lists some meaningful results.This model can be applied to the two-dimensional motional simulations of cylinders of some other shapes cylinders.