Construction and comparison of parallel implicit kinetic solvers in three spatial dimensions

A two-level OpenMP + MPI parallel implementation is used to numerically solve a model kinetic equation for problems with complex three-dimensional geometry. The scalability and robustness of the method are demonstrated by computing the classical gas flow through a circular pipe of finite length and the flow past a reentry vehicle model. It is shown that the two-level model significantly speeds up the computations and improves the scalability of the method.

OpenMP + MPI parallel implementation of a numerical method for solving a kinetic equation

Biomimetic skeleton structure of morphing nose cone for aerospace vehicle inspired by variable geometry mechanism of honeybee abdomen

Comparison of the Shakhov kinetic equation and DSMC method as applied to space vehicle aerothermodynamics

The paper is devoted to the development of the numerical approaches to solve model kinetic equations as applied to computing high-speed rarefied gas flows over three-dimensional geometries. The use of a very non-uniform unstructured velocity mesh is proposed, and the influence of the velocity mesh resolution is studied in detail. The test problems include a simple flow over a planar circular cylinder and a three-dimensional flow over a model winged re-entry vehicle.

Garry Grantovich Nersesov

Papers

Numerical simulation of aerodynamics of winged re-entry space vehicle

Study of aerodynamics of the aerospace vehicle with a deflected balancing flap

Gas-dynamic features of the flow field over a model of an integrated hypersonic flying vehicle