Typical Mixing Enhancement Approaches in Supersonic Crossflow

Abstract

Scramjet refers to air entering the combustion chamber at supersonic speed and then mixing and burning with fuel. However, in the condition of such a fast flow speed, it is difficult to achieve full mixing and stable combustion of fuel and air. The previous condition of stable combustion is the full mixing of fuel and air. Therefore, the study of mixing enhancement plays an important role in the development of scramjet engines. Many scholars at home and abroad continue to study and propose mixing enhancement methods to solve the problem of full mixing of fuel and air. This paper mainly summarizes the research progress of transverse injection, pulsed injection and cavity in the mixing enhancement approaches, and puts forward prospects for future development.

Keywords

• |scramjet|mixing enhancement|transverse injection|pulsed injection|cavity