In this paper a heat-flow coupling mathematic modeling about cascade flowing field and blade temperature field in turbomachinery is built.

It has been experimentally investigated the effects of drop-shaped pin fins on heat transfer and pressure loss for the blade trailing of turbomachinery.

The recent research and development of the sealing technology in modern turbomachinery is reviewed.

This paper gives a method of combining experiment with theoretical calculus, which can be used to obtain the precious vibration mode functions of disk bladed of turbine machinery.

<Abstrcat> This paper based on traditional PID adjustor and the method of approach gradually by using computer to regulate the rotate speed of the step motors, discusses the realization of control of the capacity of air flow from air bearing when high speed turboexpander is running safely, which is capable of avoiding the operation accident.