Improvement of fuel utilization is an important issue for proton exchange membrane fuel cell
(PEMFC) system. As a promising anode recirculation method, ejector has attracted great …

This paper aims to investigate the secondary flow characteristics and the associated vacuum
generation caused with increase in the primary pressure ramping in zero-secondary flow …

This research investigates the process of starting and breakdown of second throat diffuser
during high-altitude test of conical nozzle with a high expansion ratio. The subscale …

This study presents a combined numerical and experimental investigation of the starting
process of a second throat diffuser during ground testing of a thrust-optimized parabolic …

The present study aims to investigate the process of vacuum generation in a second throat
vacuum ejector system employed for the high altitude testing of rocket motors. The study …

This study investigates the shock transformation in an underexpanded jet in a confined duct
when the jet total pressure is increased. Experimental study reveals that the Mach reflection …

Supersonic ejectors are simple mechanical components, which generally perform mixing
and recompression of two fluid streams. Ejectors have found many applications in …

An experimental study has been carried out to investigate the nature of transients in vacuum
ejector flows during start-up and the dynamics in flow characteristics. The results show that …

In this endeavor, the transients persisting in a vacuum ejector system are studied by
numerically simulating the flowfield and experimentally validating the steady-state results …

Experimental tests are conducted to evaluate the effect of an annular rocket exhaust pattern
on the mixing characteristics of a simple ejector. Rocket exhaust is simulated using pure …