Abstract
A numerical investigation was made of the interaction of a shock wave with a contracting and expanding channel in the process of shock starting of planar and axisymmetric supersonic nozzles. The calculated results are compared with experimental data. The justification is given for the use of a method based on integration of the one-dimensional nonstationary equations of motion of an inviscid gas with allowance for a variable specific heat in the calculation of the propagation of wave structure in the nozzle starting process. The influence of the shape of the entrance opening of the reflecting channel during the nozzle starting is considered.
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