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 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 research examines the allowable second throat cross-sectional area of exhaust diffuser
in ground tests of a thrust-optimized parabolic nozzle with different expansion ratios. First …

One of the frequently reported defects of RANS-based turbulence models is overestimation
of turbulent kinetic energy production in high speed separated flow problems, which causes …

The simulated altitude test facility, as an important means to verify the performance,
characteristics, and evaluation result criteria of aero-engines, has a pivotal engineering …

During ground testing campaigns of liquid rocket engines designed for altitude operations,
high-altitude test facilities are employed to prevent overexpanded nozzle flows, which can …

Starting time of a high-altitude exhaust diffuser is one of the most important parameters in
engine unsteady performance evaluations. Pre-evacuating vacuum chamber and a part or …

Precision electronics and optics in aerospace vehicles are vulnerable to pyroshock
environments, and most are in far-field pyroshock environments. Electrodynamic shakers …