Comparative Estimation of QGDFoam Solver Accuracy for Inviscid Flow Around a Cone

The article is devoted to a comparative evaluation of the accuracy of solvers of the OpenFOAM software package. As the test problem, an axisymmetric problem of flow around a cone by an inviscid flow of a compressible gas at zero angle of attack is used. Simulation results for different solvers are compared with the known numerical solution of this classical problem. When solving the test problem for each solver, the angle of the cone and external flow rate are varied with a certain step. The comparison is carried out in a fairly wide range of these determining parameters. Special attention is paid to the QGDFoam solver, which has the property of suppressing undesirable oscillations in the vicinity of the cone vertex while maintaining sufficient accuracy.