- 1. 江苏大学能源与动力工程学院,江苏 镇江 212013;
- 2. 南京理工大学瞬态物理重点实验室,江苏 南京 210094
A study of vorticity characteristics of shock-flame interaction
- 1. School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
- 2. Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
- Available Online:
Abstract: The phenomenon of shock wave interacting with a flame involves a series of complicated physical and chemical processes, in which the generation and evolution of vorticity play an important role in controlling flame development. To systematically analyze the vorticity characteristics in the course of shock-flame interaction, a numerical study of a planar incident shock wave and its reflected wave interaction with a spherical flame was carried out by using the two-dimensional Navier-Stokes equations coupled with chemical reaction, and the requirement of high-resolution grid was met via the parallel computation. It is found that the baroclinic term plays a dominant role in the generation of vorticity within the flame zone, and the compression and dissipation terms restrain the generation of vorticity in the flame expanding stages. Besides, in the compression stages, the evolution of flame is mainly affected by the physical-rather than chemical-process.