Numerical simulation of underexpanded supersonic jets impingement on an inclined flat plate

The paper presents the results of numerical simulation of complex shock-wave structures arising from an under-expanded jets impingement on an inclined flat plate. The plate deflection angles equal to 45 degrees, 60 degrees, and 90 degrees are investigated, which corresponds to different types of shock waves interference. The gas-dynamic characteristics are calculated using the OpenFOAM software package with the QGDFoam solver. This solver based on a system of regularized (quasi-gas dynamic) equations. The numerical simulation results of the flowfields and pressure distributions at the plate are compared against the results of the Kurganov-Tadmor scheme and with experimental data. The features of the applied numerical approach for simulation of complex shock-wave structures with triplet points, contact discontinuities, and low-entropy flows are identified.