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离心式压气机因级压比大,效率较高,因此广泛用于要求满足高效率和宽广工作范围的各种用途中。离心式压气机内的气流流动是非定常流动,气流无论在径向、周向及轴向均有变化,且各种因素之间又相互影响,所以流动复杂,尚有许多问题需要搞清楚并加以解决。特别是离心式叶轮(以下简称叶轮)是向流体传递能量的元件,所以它是对性能产生重要影响的因素之一。因叶轮是旋转的,有哥氏力作用到流体上,同时由于叶轮流道从轴向转到径
Centrifugal compressors are widely used in a variety of applications that require high efficiency and a wide range of work due to their large pressure ratio and high efficiency. Centrifugal compressor air flow is unsteady flow, regardless of the radial flow, the circumferential and axial have changed, and the interaction between various factors, so the flow is complex, there are still many problems need to be clear and to be solve. In particular, a centrifugal impeller (hereinafter referred to as an impeller) is an element that transfers energy to a fluid, so it is one of the factors that have an important influence on performance. Due to the rotation of the impeller, Coriolis force acting on the fluid, at the same time as the impeller runner from the axial to the diameter