Abstract—In this numerical study, supersonic combustion of hydrogen has been presented with strut flat duct length. The combustor has a single fuel injection parallel to the main flow from the base. Finite rate chemistry model with S-A Model have been used for modeling of supersonic combustion. In this paper strut at 60 with flat duct length analyzed for without hydrogen injection, with hydrogen injection and hydrogen injection with combustion. The investigation of the shock system produced by a strut injector with subsequent mixing, ignition and flame stabilization showed that the characteristics of the ignition process is considerably different from the shock induced ignition which has been postulated in the past. The ignition is achieved through the irreversible total pressure loss in the wake of Strut due to flat duct length. Flat duct lengths allow the ignition delay to occur before the pressure and temperature is decreased by the expansion. The presence of a boundary layer in the chamber changes the shock system and the ignition conditions in the chamber considerably.
Index Terms—supersonic combustion, S-A model, finite rate, stagnation temperature, flame speed, Mach number.
K. M. Pandey, Member IACSIT, Department of Mechanical Engineering, N. I. T Silchar, Assam, India.(email: firstname.lastname@example.org).
A.P. Singh, Department of Mechanical Engineering, N.I.T Silchar, Assam, India(email : email@example.com).
Cite: K. M. Pandey and A. P. Singh, "Numerical Analysis of Supersonic Combustion by Strut Flat Duct Length with S-A Turbulence Model," International Journal of Engineering and Technology vol. 3, no. 2, pp. 193-198, 2011.