Supercomputer Modeling of Supersonic Flow around Rotation Bodies of Different Shapes

The numerical approach and its parallel software implementation for studying the processes of flow around solids of complex geometry by supersonic gas flows are discussed. The aim of the study is to analyze the effectiveness of numerical schemes on unstructured hybrid grids approximating quasi-gasdynamic (QGD) equations. As an example, the problem of flowing around bodies of rotation of various shapes is chosen. The gaseous medium is represented by dry air. The system of QGD equations is considered in a one-component formulation. It is supplemented by equations of state of an ideal gas and the dependencies of kinetic coefficients on temperature and pressure. Axisymmetric gas flows around a cylinder, an ellipsoid, and a composite body are considered in numerical experiments. Calculations are performed for three values of the input flow velocity. The obtained results confirm the correctness of the developed computing technology.