Method for reducing the intensity of shock waves in a channel

Method of reducing the intensity of shock waves in a channel, comprising generating in the channel a shock wave propagating in an extended channel when a main pressurized gas stream flow outflows into the channel together with a foreign body or bodies, installation of a reflector perpendicular to this gas flow and coaxial to its axis, passage of a part of the gas flow through the through-hole of the reflector with provision of possibility of passage through the through-hole of the reflector of a foreign body or bodies moving coaxially to the main gas flow and together with it, formation in front of the reflector in the incoming main gas flow of an area of increased density and pressure causing an increase in resistance to shock wave propagation by the calculated ratio of geometric dimensions of the reflector, characterized in that the inlet channel is placed upstream of the channel, the reflector is made parabolic, the parabolic reflector is placed in the channel housing downstream of the end of the inlet channel of the high-pressure flow, thus forming an extended through-channel;

• due to the geometry of the tubular-shaped channel housing, at least one working zone placed coaxially to the inlet channel or several working zones placed sequentially and coaxially to the inlet channel is formed, for which the parabolic reflector is placed in the working zone perpendicular to the extended through-channel and coaxial to its axis with the distance “h” between the end of the extended through-channel and the parabolic reflector or neighboring parabolic reflectors turned with the concave part of the parabolic surface towards the gas flow, wherein the distance “h” is not less than the diameter “d” of the through-hole in the parabolic reflector;
• in order to form an area of increased density and pressure upstream of the parabolic reflector, the reflector is made with the outer diameter “D” numerically equal to not less than 3 diameters of the hole “d” in this reflector, and the focal point of the parabolic surface of the reflector “F” is located from the cut of the inlet channel or the cut of the outlet hole of the previous reflector not further than half of the hole “d” in this reflector, wherein the working zone “a” in the form of an area of increased density and pressure for the incoming shock waves is formed between the inlet channel of the flow and the parabolic reflector as a result of interference of the reflected shock waves focused by the parabolic surface of the reflector, and the formed working zone “a” acts as an obstacle with increased resistance;
• the distance “h” between the end of the inlet channel and the parabolic reflector or neighboring parabolic reflectors is calculated based on the laws of geometrical optics, and is equal to at least the diameter of the aperture “d” of the parabolic reflector.