The shock wave mass transfer jet aerator is patented by a company, and the applicant is Wuhan Fangdi Environmental Protection Engineering Co., Ltd.
I personally doubt how this so-called shock wave is generated. Shock waves are strong compression waves in moving gases. Weak disturbances in the gas propagate around at the local speed of sound. When an object moves at subsonic speed, the disturbance propagation speed is greater than the object's movement speed, so the disturbance cannot be concentrated. At this time, the distribution of flow parameters (including flow speed, pressure, etc.) in the entire flow field is continuous. When an object moves at supersonic speed, the disturbance has no time to spread to the front of the object. As a result, the gas in front is suddenly compressed by the moving object, forming a concentrated strong disturbance. At this time, an interface of compression process appears, which is called a shock wave.