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

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°, 60°, and 90° 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

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

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Publisher
Springer Journals
Copyright
Copyright © A.S. Epikhin and T.G. Elizarova 2021
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864321040028
Publisher site
See Article on Publisher Site

Abstract

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°, 60°, and 90° 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.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Jul 1, 2021

Keywords: numerical simulation; underexpanded jet interaction; shock-wave structures; regularized (quasi-gas dynamic) equations; QGDFoam; OpenFOAM

References