采用动量转换方法,应用格子Boltzmann模型计算流体对边界的作用力,用二维六角形的格子Boltzmann模型计算沟槽形状边界的Coutte流动,得出沟槽形状边界的阻力。计算结果显示,沟槽形状边界的阻力系数随Re数的增大而减小,其变化规律与平板边界的情况一致。 Using the momentum transfer method, the force of the fluid on the boundary is calculated by using the lattice Boltzmann model, and the Coutte flow at the boundary of the groove shape is calculated by using the two-dimensional hexagonal Lattice Boltzmann model to obtain the resistance of the groove shape boundary. The calculated results show that the drag coefficient at the groove shape boundary decreases with the increase of Re number, and the change rule is consistent with that of the slab boundary.