3-D Simulation of Turbulent Density

被引:0
作者
Hormozi, S. [1 ]
Firoozabadi, B. [1 ]
Afshin, H.
Jahromi, H. Ghasvari [1 ]
机构
[1] Sharif Univ Technol, Sch Mech Engn, Ctr Excellence Energy Convers, Tehran, Iran
来源
PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE, VOL 2 | 2006年
关键词
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Density current is a dense fluid, which is continuously released from a source and spreads down a sloping surface inside a lighter, motionless fluid. A low-Reynolds number k-epsilon model (Launder and Sharma, 1974) has been used to simulate the behavior of 3-D density currents. Density current with a uniform velocity and concentration enters the channel via a sluice gate into a lighter ambient fluid and moves forward down-slope. The model has been verified with the experimental data sets. Although the k-epsilon Launder and Sharma model is applied here to a conservative density current, it seems the analysis is valid in general for turbidity current laden with fine particles.
引用
收藏
页码:361 / 367
页数:7
相关论文
共 12 条
[1]  
CHOI S, 2002, J HYDRAULIC ENG, V128
[2]   NEW WALL-REFLECTION MODEL APPLIED TO THE TURBULENT IMPINGING JET [J].
CRAFT, TJ ;
LAUNDER, BE .
AIAA JOURNAL, 1992, 30 (12) :2970-2972
[3]   Hydrodynamics of two-dimensional, laminar turbid density currents [J].
Firoozabadi, B ;
Farhanieh, B ;
Rad, M .
JOURNAL OF HYDRAULIC RESEARCH, 2003, 41 (06) :623-630
[4]  
FIROOZABADI B, EXPT 3D TUR IN PRESS
[5]  
FIROOZABADI F, 2004, 2 BSME ASME INT C TH
[6]   Three-dimensional modeling of density current. I. Flow in straight confined and unconfined channels [J].
Imran, J ;
Kassem, A ;
Khan, SM .
JOURNAL OF HYDRAULIC RESEARCH, 2004, 42 (06) :578-590
[7]   CALCULATION OF LOW-REYNOLDS-NUMBER PHENOMENA WITH A 2-EQUATION MODEL OF TURBULENCE [J].
JONES, WP ;
LAUNDER, BE .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1973, 16 (06) :1119-1130
[8]  
LAUNDER BE, LETT HEAT MASS TRANS, V1, P131
[9]   Prediction of the spreading mechanism of 3D turbulent wall jets with explicit Reynolds-stress closures [J].
Lübcke, HM ;
Rung, T ;
Thiele, F .
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2003, 24 (04) :434-443
[10]   IMPROVED FORM OF THE K-EPSILON MODEL FOR WALL TURBULENT SHEAR FLOWS [J].
NAGANO, Y ;
HISHIDA, M .
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1987, 109 (02) :156-160