可压缩混合层流动近十年研究进展

ADVANCES IN THE STUDY OF COMPRESSIBLE MIXING LAYER IN RECENT TEN YEARS

从稳定性分析、实验研究和数值模拟3个方面回顾了过去近10年间关于可压缩混合层流动的研究.这些工作研究了可压缩性对混合层其它性质的影响,这些性质包括混合层增长率、不稳定模式、流场结构、平均速度和脉动速度、以及标志物的混合等.3种研究方法相互补充,共同提供了认识可压缩混合层流动机制的大量信息.这些研究是湍流机理研究的重要组成部分,也是混合层流动在应用技术领域成功应用的前提.

This paper reviews the studies on compressible mixing Layer cturmg tne past decade.These researches may be classified into stability analysis, laboratory experiments and numerical simulations, with a focus on the effects of compressibility on other properties of mixing layer, including the growth rate, unstable modes, flow field structure, mean velocities and fluctuate velocities, and the scalar mixing. The three aspects of researches complement each other and give abundant information to understand the compressible mixing layer. The researches cover an important part of the study on turbulent mechanism, and are essential for successful applications of mixing layer in technical areas.