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 …

The ratio of diffuser inlet to nozzle exit area (A d/A e) is one of the most important parameters
in designing and evaluating the performance of a high-altitude test facility (HATF). Typically …

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 …

The performance and flow structure in a three-dimensional rectangular ejector have been
numerically investigated by using air as the working fluid. Commercial software ANSYS …

This paper investigates the mixing of two supersonic streams in a supersonic exhaust
diffuser using theoretical, numerical, and experimental approaches. It has focused attention …

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 …

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 …