In the vortex-in-cell (VIC) method,error is induced by the interpolation used to determine the velocities of the discrete vortex elements from the velocities of the flow field on the grid nodes.

• 在格子涡方法中，用网格节点处的流场速度通过插值确定离散涡元速度时，往往会导致很大误差，为此，给出了一种改进的格子涡方法。