The Chen-Kim modified k-ε model of turbulence and the co-located grid, SIMPLEC are used to the numerical analysis of the mixing flow of the lobed ejector with a double-wall diffuser by using of the great viscosity for the lobe.

In order to avoid the divergence as the non orthogonality of the lobe, the Chen Kim modified k ε model of turbulence and the co located grid, SIMPLEC, are used in the numerical analysis of the mixing flow of the lobed ejector with a double wall diffuser by using the great viscosity for the lobe.

The Multi-stage ejector chamber fluid dynamics model is set up and the gas entrainment,mixing,combustion and process of acting are simulated.

Modeling study is performed to reveal the special features of the entrainment of ambient air into turbulent air jets.

Numerical simulation of ceramic filter unit was carried out in order to optimize the pulse cleaning system design by investigating the pressure drop across the filter wall and the entrainment effect using FLUENT code.

Effects of configuration and secondary combustion on RBCC thrust in ejecting mode;

Both advantages of rocket engine and air-breathing engine are integrated into one kind of propulsion system,called Rocket-Based-Combined-Cycle (RBCC),which has multiple operating woke modes,including ejecting,subsonic combustion,supersonic combustion and rocket mode,with each mode operating at varying flying stage.

The ejectors technique was successfully utilized in the key ammonia distilling in coking waste water treatment,by means of technical innovations,bringing about remarkable economic,social and environment-protec- tion returns.