Ignition Time Delay In Swirling Supersonic Flow Combustion

A. M. Tahsini
2012 Zenodo  
Supersonic hydrogen-air cylindrical mixing layer is numerically analyzed to investigate the effect of inlet swirl on ignition time delay in scramjets. Combustion is treated using detail chemical kinetics. One-equation turbulence model of Spalart and Allmaras is chosen to study the problem and advection upstream splitting method is used as computational scheme. The results show that swirling both fuel and oxidizer streams may drastically decrease the ignition distance in supersonic combustion,
more » ... sonic combustion, unlike using the swirl just in fuel stream which has no helpful effect.
doi:10.5281/zenodo.1328750 fatcat:6ugln73ewvcl3equwddmizswhe