The immersed boundary method is a new type of computational method which employs Cartesian coordinate to deal with moving curve boundary, quite fit for simulating complex interactions of multi-moving or deforming bodies due to its simple programming and easy implementation. 浸没边界法是一类在直角坐标系中处理运动曲线边界的新兴计算方法,十分适合模拟多运动或变形物体的复杂相互作用,而且程序简单,易于实现。