Experimental and numerical study of shock wave interaction with perforated plates

被引:48
作者
Britan, A [1 ]
Karpov, AV
Vasilev, EI
Igra, O
Ben-Dor, G
Shapiro, E
机构
[1] Volgograd State Univ, Dept Computat Mech, Volgograd 400062, Russia
[2] Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, IL-84105 Beer Sheva, Israel
来源
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2004年 / 126卷 / 03期
关键词
D O I
10.1115/1.1758264
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The flow developed behind shock wave transmitted through a screen or a perforated plat is initially highly unsteady and nonuniform. It contains multiple shock reflections and interactions with vortices shed from the open spaces of the barrier The present paper studies experimentally and theoretically/numerically the flow and wave pattern resulted from the interaction Of an incident shock wave with a few different types of barriers, all having the same porosity but different geometries. It is shown that in all investigated cases the flow downstream of the barrier call be divided into two different zones. Due immediately behind the barrier where the flow is highly unsteady, and nonuniform in the other placed further downstream front the barrier the flow approaches a steady and uniform state. It is also shown that most of the attenuation experienced by the transmitted shock wave occurs in the zone where the flow is highly unsteady. When solving the flow developed behind the shock wave transmitted through the barrier while ignoring energy losses (i.e., assuming the fluid to be a perfect fluid and therefore employing the Euler equation instead of the Navier-Stokes equation) leads to non-physical results in the unsteady flow zone.
引用
收藏
页码:399 / 409
页数:11
相关论文
共 12 条
[1]  
Baldwin B., 1978, AIAA PAPER, DOI DOI 10.2514/6.1978-257
[2]   Shock waves attenuation by granular filters [J].
Britan, A ;
Ben-Dor, G ;
Igra, O ;
Shapiro, H .
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2001, 27 (04) :617-634
[3]  
BRITAN AB, 1985, DOKL AKAD NAUK SSSR+, V281, P295
[4]  
Cebeci T., 1974, ANAL TURBULENT BOUND
[5]  
FRANKS WJ, 1957, 13 UTIA
[6]   RAPID COMPRESSION OF GRID-GENERATED TURBULENCE BY A MOVING SHOCK-WAVE [J].
HONKAN, A ;
ANDREOPOULOS, J .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1992, 4 (11) :2562-2572
[7]   Experimental and numerical study of the interaction between a planar shock wave and a square cavity [J].
Igra, O ;
Falcovitz, J ;
Reichenbach, H ;
Heilig, W .
JOURNAL OF FLUID MECHANICS, 1996, 313 :105-130
[8]   Experimental and theoretical study of shock wave propagation through double-bend ducts [J].
Igra, O ;
Wu, X ;
Falcovitz, J ;
Meguro, T ;
Takayama, K ;
Heilig, W .
JOURNAL OF FLUID MECHANICS, 2001, 437 :255-282
[9]  
Launder B.E, 1972, LECT MATH MODELS TUR
[10]  
LIND C, 1999, P 22 INT S SHOCK WAV, P1138