Abstract:
An algorithm is proposed for calculating the parameters of weak shock waves at large distances from their origination. In chosen meridional planes, the parameters of the near field of the three-dimensional flow are used to determine the streamwise coordinates of “phantom bodies” by linear relations. When the initial body is replaced by a system of “phantom bodies” for which discrete values of the Whitham function are found, the far-field parameters are calculated by the Whitham theory, independently in each meridional plane. Results calculated for a body with axial symmetry and for bodies with spatial symmetry are presented.
Keywords:supersonic flow, spatial flows, shock waves, sonic boom, combined method, linear theory, Whitham theory.