VISIOMETRICS OF 2D SHOCK-PLANAR S/F/S CURTAIN INTERACTIONS: VORTEX DOUBLE LAYERS, VORTEX PROJECTILES AND DECAYING STRATIFIED TURBULENCE

作     者：Norman J. Zabusky Shuang ZhangLaboratory of Visiometrics and Modeling,Department of Mechanical and Aerospace Engineering 

作者机构：Laboratory of Visiometrics and Modeling.Department of Mechanical and Aerospace Engineering Rutgers University P.O. Box 909. Piscataway New Jersey 08855 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2001年第18卷第z1期

页      面：32-38页

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：visiometrics accelerated inhomogeneous flows (aifs) Richtmyer Meshkov shock curtain baroclinic vorticity generation vortex double layers (VDLs) vortex projectiles (VPs) stratified turbulence 

摘      要：Vortex double layers (VDLs) and vortex projectiles (VPs) are the essential coherent structures which emerge in the shock excited (s/f/s) planar parallel curtain simulations of a 2D shock tube with PPM. These opposite signed layers, formed by shock induced baroclinic deposition of vorticity, ind and are strongly affected by secondary reflected shocks and vortex interactions. In our visiometric mode of working, we quantify several of these processes and introduce time epochs to discuss the emerging phenomena and normalizations to scale (collapse) the data at M =1.5 and 2.0. This versatile configuration, easily obtained in the laboratory, allows us to study the formation, evolution and reacceleration of VPs and stratified turbulence and mixing.