INTERACTION OF A COMBINATION OF BODIES IN SUPERSONIC FLOW. INTERFERENCE AND DIFFRACTION OF SHOCK WAVES IN FLOW OVER TWO BODIES OF REVOLUTION

摘要

Results are presented of numerical investigations of three-dimensional supersonic flows in a disturbed region of jointly streamlined two identical bodies arranged in parallel which represent combinations of a cone with a semivertex angle of 20° and a cylinder with a fineness ratio of 5. Longitudinal flow over bodies has been studied numerically based on the Euler equation at a Mach number of incident flow equal to 4.03 and a zero angle of attack. The effect has been shown of the distance between the axes of models on the flow structure and disturbed and total aerodynamic characteristics of bodies. Calculated results have been compared with data of the physical experiment.