Large Eddy Simulation of Shock Boundary Layer Interaction along with Wall Effects

Abstract

It’s really arduous work to simulate the shock wave interaction with boundary layer through high computational domains such as Large Eddy Simulation (LES), Direct Numerical simulation (DNS), Detached Eddy Simulation (DES) and so forth. This work comprise about numerical and computational analysis of supersonic flows where the Shockwave and Boundary layer interaction happens. Such flows uncover the presence of complex components, which should be painstakingly examined for the effective structure of Propulsion and Aerodynamic frameworks. Though, it has several flaws and efforts to acquire appropriate and effective results, the results are like precise and efficient to compare with real life experiments. In this paper the high performance computational simulation approach i.e., Large Eddy Simulation approach has used to detect, reveal and scrutinize the physical flow phenomena of shock boundary layer interaction mechanism over Oblique-Impingement (O-I) model with mach number (M) 2.7 and Reynolds number of 4300. The 3D flow structure is seen as instigated by the cleared SWBLI shaped on the sidewalls. The area of the endpoint of the episode shock close to the sidewall is restricted by a sweepback impact, permitting the meaning of an entrance Mach number M that is appeared to relate well with the spanwise degree of the centre stream. The acquired large-eddy simulation results have given a reasonable and exact proof of the essential adverse flow and the auxiliary detachment flow being basically tempestuous. Additionally, simulations uncover the nearness of such flow properties for the most part close to the shock foot and inside the distribution bubble. The wall effects are also studied along with sub physical characteristics such as adverse pressure gradients, interaction and re-attachment region, surface pressure distribution, expansion fan and so on. In the nutshell, the results are then compared with different angle impingements viz.9 and 12 Degree. Here, the Tecplot360 adhere a critical part for interfacing the post processor results and visualizing them through various plots, slices and frames.