Investigation on the flameholding mechanisms in supersonic flows: backward-facing step and cavity flameholder

2010 ◽  
Vol 14 (1) ◽  
pp. 63-74 ◽  
Author(s):  
Wei Huang ◽  
Mohamed Pourkashanian ◽  
Lin Ma ◽  
Derek B. Ingham ◽  
Shi Bin Luo ◽  
...  
Keyword(s):  
Supersonic Flows ◽  
Backward Facing Step

scholarly journals Effects of Inflow Mach Number and Step Height on Supersonic Flows over a Backward-Facing Step

2013 ◽  
Vol 5 ◽  
pp. 147916 ◽  
Author(s):  
Haixu Liu ◽  
Bing Wang ◽  
Yincheng Guo ◽  
Huiqiang Zhang ◽  
Wenyi Lin
Keyword(s):  
Mach Number ◽  
Supersonic Flows ◽  
Step Height ◽  
Backward Facing Step

scholarly journals Влияние динамического напора и молекулярного веса газа на смешение при инжекции струй в поперечный сверхзвуковой поток

2021 ◽  
Vol 47 (2) ◽  
pp. 3
Author(s):  
Н.Н. Федорова ◽  
М.А. Гольдфельд
Keyword(s):  
Molecular Weight ◽  
Mach Number ◽  
Computational Study ◽  
Supersonic Flows ◽  
Backward Facing Step ◽  
Momentum Ratio ◽  
Channel Entrance ◽  
The Real ◽  
Ratio Range

The results of a computational study of turbulent supersonic flows in a channel with a backward-facing step are presented, taking into account crossflow injection of argon and hydrogen jets. The calculations are performed at Mach number M = 4 at the channel entrance under the real flight conditions, which were realized in experiments in a hot-shot aerodynamic facility. The comparison of the flowfields is carried out for jet-to-freestream momentum ratio range J = 1 ÷ 6. It is shown that the degree of mixing, estimated from the uniformity index, increases with J increasing and with an increase in the molecular weight of the injected gas at the same J.

Siphon Flows in Stratified Coronal Loops

1994 ◽  
Vol 144 ◽  
pp. 185-187
Author(s):  
S. Orlando ◽  
G. Peres ◽  
S. Serio
Keyword(s):  
Heat Flux ◽  
Scaling Laws ◽  
Flow Model ◽  
Supersonic Flows ◽  
Coronal Loops ◽  
Characteristic Parameters

AbstractWe have developed a detailed siphon flow model for coronal loops. We find scaling laws relating the characteristic parameters of the loop, explore systematically the space of solutions and show that supersonic flows are impossible for realistic values of heat flux at the base of the upflowing leg.

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