Non stationarylateral force reducing method for jet nozzle, involves positioning circular body inside divergent section, so that shock wave is incident on section at axial incidence position, during starting phase of engine

摘要

The method involves positioning a circular body (5) inside a divergent section along the length of a correspondence axis from an axial position of the body so that a shock wave is incident on the section at an axial incidence position, during the starting phase of a rocket engine. The wave is induced by a disturbance of a combustion gas flow produced by the body. The section produces a jet separation, in the incidence position. An independent claim is also included for a device for reducing non stationary lateral forces acting on a pipe of a rocket engine, during the starting phase of the engine.