Numerical Approach for Solving Kinetic Equations in Two-Dimensional Case on Hybrid Computational Clusters.

The paper presents the software implementation of the Boltzmann equation solver based on the deterministic finitedifference method. The solver allows one to carry out parallel computations of rarefied flows on a hybrid computational cluster with arbitrary number of central processor units (CPU) and graphical processor units (GPU). Employment of GPUs leads to a significant acceleration of the computations, which enables us to simulate two-dimensional flows with high resolution in a reasonable time. The developed numerical code was validated by comparing the obtained solutions with the Direct Simulation Monte Carlo (DSMC) data. For this purpose the supersonic flow past a flat plate at zero angle of attack is used as a test case. [ABSTRACT FROM AUTHOR]