Numerical simulation of the flow around cylinder with sphere nose using direct simulation Monte-Carlo method

Numerical simulation of the axisymmetric flows on the direct simulation Monte-Carlo method (DSMC) basis is under the consideration. Molecules transfer algorithm for the axisymmetric 2D unstructured computation grid was proposed. Molecules impact cross section parameters in the framework of variable hard spheres model were defined more accurately for the N$_2$ gas at low temperatures. Computational and classical experimental data of the rarefied flow around cylinder with spherical nose are presented. These data could be used for the validation of developed DSMC codes.