But it is thought that the mature pump inner flow numeric computation was started and then developed rapidly after the " two relative flow surface " ( the s1 and s2 ) theory presented by professor wuzhonghua 但具有完备形态的内流数值模拟，一般认为始于吴仲华教授的s1 、 s2两类相对流面理论后，叶轮机械内流数值模拟才得到了迅速发展。
