Pylon-Aided Fuel Injection into Supersonic Flow

2007 ◽  
Author(s):  
Rama Balar ◽  
Ken Yu ◽  
Ashwani Gupta ◽  
Ajay Kothari
Keyword(s):  
Supersonic Flow ◽  
Fuel Injection

scholarly journals Numerical Investigation of Various Fuel Injection Angles on Interaction in Cold Kerosene-fueled Supersonic Flow

2017 ◽  
Vol 7 ◽  
pp. 66-71 ◽  
Author(s):  
Yin-Yin Qi ◽  
Lin Zhu ◽  
Wei-Lai Liu ◽  
Bao-Jian Xu ◽  
Jia-Ru Ge ◽  
...  
Keyword(s):  
Supersonic Flow ◽  
Numerical Investigation ◽  
Fuel Injection

Parametric Analysis of Pylon-Aided Fuel Injection in Scramjet Engines

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Mitchell R. Pohlman ◽  
Robert B. Greendyke
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Supersonic Flow ◽  
Performance Analysis ◽  
Parametric Analysis ◽  
Fuel Injection ◽  
Absolute Size ◽  
Plume Area ◽  
Air Mixing ◽  
Computational Fluid Dynamics Cfd

The current study investigates means to increase the efficiency of fuel-air mixing into supersonic flow upstream of a flame holding cavity. Previous work has shown much promise in increasing the penetration and mixing of a fuel-air mixture into the freestream by injecting fuel behind small triangular pylons. The current paper examines 21 triangular pylons of varying widths, heights, and lengths with a computational fluid dynamics (CFD) performance analysis. Increasing the height of the pylons increased the penetration, flammable fuel plume area, and floor gap. Variations in pylon length had no discernible impact on the fuel-air mixing metrics. Aerodynamic loses were minimal for all pylon configurations and did not correlate to the absolute size of the pylons tested.

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