Gasdynamic parameters of rectangular jet for case of impingement upon obstacle

The results of mathematical investigations of gasdynamic are presented for impingement of 3D supersonic rectangular jet upon obstacle. The investigations have been done for stationary regime of impingement of jet upon surface with different relations of nozzle's bars. An influence is shown of governing parameters upon a geometry of the jet, a system of chocks and distribution of pression on a surface. The analysis and comparison are made of champs of flows for inclination of obstacle in the two character cuts of nozzle. Mathematical modeling have been done with method of gross particles on a base of non-stationary Euler equations for ideal gas, that composed for cylinder coordinates with adaptive grid.