The primary aim of this project is to investigate the flow and mixing characteristic in strut-ramp injector configuration in oncoming supersonic flow using Large Eddy Simulation (LES) methodology. Thorough understanding of the effect of strut-ramp injector would enlighten the understanding of mixing behavior and complex flow physics, which would offer deeper insight into the flame stabilization mechanism. It is anticipated that variation in injector configuration would interact with the complex flow field, dominated by shock waves would provide better understanding towards flame stabilization and mixing phenomenon.