Numerical study of transverse hydrogen injection in high-speed reacting crossflow

A high-speed compressible solver capable of solving detailed chemical reaction mechanisms is developed by coupling the open-source computational fluid dynamic toolbox OpenFOAM® and Cantera 2.5.0. sonic hydrogen jet discharging from a circular injector into high enthalpy supersonic crossflow over flat plate selected as test case for solver. The incoming boundary layer laminar, an adverse pressure gradient-induced transition expected due to transverse injection. serve two purposes. First, validate Second, inspect capability Reynolds-Averaged Navier–Stokes (RANS) in predicting flame characteristics flows involving laminar turbulent transition. present study features three-dimensional RANS simulations with Shear Stress Transport (SST) k–ω Langtry–Menter SST turbulence models, three values inlet intensity: I = 0.5, 1, 2. Analysis showed that plays significant role resulting structure. fully model several discrepancies experiment, especially near layer. On other hand, predicts onset hence structures accurately. Furthermore, structure strongly depend on I. low-velocity recirculation regions aid stabilization upstream injector. At same time, horseshoe vortex dictates spread spanwise direction. reflected shock–boundary interaction helps downstream