导言:通常对民用和工业供水进水口的设计应使水力机械和有关结构所受的扰动为最小。近年来,因更注重于运行的可靠性,从而采用了一些严格的安全规则。拢动的根源之一是产生带空气核心和不带空气核心的自由表面旋涡。旋涡的出现会引起水泵、水轮机以及输水管的效率降低,汽蚀和振动。自由表面旋涡是一种复杂的现象,难以 Introduction: It is common practice to design civil and industrial water inlets to minimize disturbances to hydraulic machinery and related structures. In recent years, due to more emphasis on operational reliability, which adopted some strict safety rules. One of the root causes of the move is the creation of a free-form vortex with an air core and an air core. The appearance of vortices causes the efficiency of pumps, turbines and water pipes to decrease, cavitation and vibration. Free surface vortex is a complex phenomenon, difficult