LINEAR EDDY SIMULATIONS OF MIXING IN A HOMOGENEOUS TURBULENT-FLOW

被引:37
作者
MCMURTRY, PA
GANSAUGE, TC
KERSTEIN, AR
KRUEGER, SK
机构
[1] SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94550
[2] UNIV UTAH,DEPT METEOROL,SALT LAKE CITY,UT 84112
来源
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 04期
关键词
D O I
10.1063/1.858667
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The linear eddy mixing model is used to predict the evolution of a decaying scalar field in statistically steady homogeneous turbulent flow over a wide range of Reynolds and Schmidt numbers. Model results at low Reynolds number and order unity Schmidt number are shown to be in good overall agreement with direct numerical simulations. Results at higher Schmidt and Reynolds numbers reproduce conventional scaling properties of the scalar statistics. Predictions of Schmidt number and Reynolds number sensitivity of the evolution of the scalar concentration probability density function are presented and interpreted.
引用
收藏
页码:1023 / 1034
页数:12
相关论文
共 21 条
[1]   LARGE-SCALE STRUCTURES AND MOLECULAR MIXING [J].
BROADWELL, JE ;
MUNGAL, MG .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1991, 3 (05) :1193-1206
[2]   PROBABILITY-DISTRIBUTION OF A STOCHASTICALLY ADVECTED SCALAR FIELD [J].
CHEN, HD ;
CHEN, SY ;
KRAICHNAN, RH .
PHYSICAL REVIEW LETTERS, 1989, 63 (24) :2657-2660
[3]   DISPERSED PHASE MIXING .1. THEORY AND EFFECTS IN SIMPLE REACTORS [J].
CURL, RL .
AICHE JOURNAL, 1963, 9 (02) :175-181
[4]  
DOPAZO D, 1978, COMBUST SCI TECHNOL, V13, P99
[5]   DIRECT NUMERICAL SIMULATIONS OF THE TURBULENT MIXING OF A PASSIVE SCALAR [J].
ESWARAN, V ;
POPE, SB .
PHYSICS OF FLUIDS, 1988, 31 (03) :506-520
[6]   MAPPING CLOSURE AND NON-GAUSSIANITY OF THE SCALAR PROBABILITY DENSITY-FUNCTIONS IN ISOTROPIC TURBULENCE [J].
GAO, F .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1991, 3 (10) :2438-2444
[7]  
GAO F, 1991, B AM PHYS SOC, V36, P2662
[8]   CLOSURE OF THE TRANSPORT-EQUATION FOR THE PROBABILITY DENSITY-FUNCTION OF TURBULENT SCALAR FIELDS [J].
JANICKA, J ;
KOLBE, W ;
KOLLMANN, W .
JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS, 1979, 4 (01) :47-66
[9]   A LINEAR-EDDY MODEL OF TURBULENT SCALAR TRANSPORT AND MIXING [J].
KERSTEIN, AR .
COMBUSTION SCIENCE AND TECHNOLOGY, 1988, 60 (4-6) :391-421
[10]   LINEAR-EDDY MODELING OF TURBULENT TRANSPORT .7. FINITE-RATE CHEMISTRY AND MULTISTREAM MIXING [J].
KERSTEIN, AR .
JOURNAL OF FLUID MECHANICS, 1992, 240 :289-313