一个流体数值模拟程序，模拟空中或从一个钻孔运动中筛选不饱和区。三维空气流动的异常，各向异性饱和带空气流通。-A fluid numerical simulation program to simulate the air or from a drilling campaign in the filter is not saturated zone. The abnormal three-dimensional air flow, anisotropy saturated with air cir