Evaluation of Pressure Based and Density Based Solver to Investigate Supersonic Jet Flow through the Confined Wall

This study is primarily focused on the assessment of a pressure-based and density CFD solver for the numerical analysis of an under-expanded supersonic jet flow inside a canister tube. The simulation results of both types of solvers in terms of the pressure field and shock structure are compared to experimental measurement. A comparison study indicates that the pressure solvers produce the same key findings as the density-based, and are also closely in agreement with the data reported by Batson and Bertin. The pressure solver using coupled pressure-velocity algorithm showed nearly identical values of the pressure peaks and corresponding positions downstream of the tube wall. However, a pressure-based solver is more robust and computationally efficient. Thus, a pressure solver with coupled algorithm can be considered as an alternative for the study of complex supersonic compressible flows while maintaining accuracy.