RAYLEIGH-TAYLOR INSTABILITY - EXPERIMENTS WITH IMAGE-ANALYSIS

被引:118
作者
DALZIEL, SB
机构
[1] Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge
关键词
D O I
10.1016/0377-0265(93)90051-8
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Rayleigh-Taylor instability is investigated in the laboratory using a simple apparatus of novel design to set up the unstable initial conditions. Visualisation techniques give a qualitative view of the development of the instability. Quantitative measurements are obtained through digital image analysis. Of primary interest is the evolution of the velocity field. Measurements are made over a two dimensional slice of the flow using an efficient, high-resolution particle tracking technique. This technique is described and its strengths and limitations are discussed in comparison with traditional measurement techniques. The visualisations and velocity measurements are compared with the experimental and numerical results of previous workers.
引用
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页码:127 / 153
页数:27
相关论文
共 16 条
[11]  
READ KI, 1984, AWRE00284 MIN DEF RE
[12]  
RIGNOT E, 1988, USCAE143 U SO CAL DE
[13]   AN OVERVIEW OF RAYLEIGH-TAYLOR INSTABILITY [J].
SHARP, DH .
PHYSICA D, 1984, 12 (1-3) :3-18
[14]  
SMEETON VS, 1988, AWRE O3587 MIN DEF R
[15]  
VOROPAYEV SI, 1993, UNPUB FLUIDS A
[16]   3-DIMENSIONAL NUMERICAL-SIMULATION OF TURBULENT MIXING BY RAYLEIGH-TAYLOR INSTABILITY [J].
YOUNGS, DL .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1991, 3 (05) :1312-1320