EFFECTS OF THE COMPUTATIONAL TIME-STEP ON NUMERICAL-SOLUTIONS OF TURBULENT-FLOW

被引:444
作者
CHOI, H
MOIN, P
机构
[1] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035
[2] SEOUL NATL UNIV,DEPT MECH ENGN,SEOUL 151742,SOUTH KOREA
关键词
D O I
10.1006/jcph.1994.1112
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Effects of large computational time steps on the computed turbulence were investigated using a fully implicit method. In turbulent channel flow computations the largest computational time step in wall units which led to accurate prediction of turbulence statistics was determined. Turbulence fluctuations could not be sustained if the computational time step was near or larger than the Kolmogorov time scale. (C) 1994 Academic Press, Inc.
引用
收藏
页码:1 / 4
页数:4
相关论文
共 8 条
[1]   DIRECT NUMERICAL-SIMULATION OF TURBULENT-FLOW OVER RIBLETS [J].
CHOI, H ;
MOIN, P ;
KIM, J .
JOURNAL OF FLUID MECHANICS, 1993, 255 :503-539
[2]   ON THE SPACE-TIME CHARACTERISTICS OF WALL-PRESSURE FLUCTUATIONS [J].
CHOI, H ;
MOIN, P .
PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1990, 2 (08) :1450-1460
[3]  
Choi H., 1992, TF55 STANF U DEP MEC
[4]   THE MINIMAL FLOW UNIT IN NEAR-WALL TURBULENCE [J].
JIMENEZ, J ;
MOIN, P .
JOURNAL OF FLUID MECHANICS, 1991, 225 :213-240
[5]   APPLICATION OF A FRACTIONAL-STEP METHOD TO INCOMPRESSIBLE NAVIER-STOKES EQUATIONS [J].
KIM, J ;
MOIN, P .
JOURNAL OF COMPUTATIONAL PHYSICS, 1985, 59 (02) :308-323
[6]   TURBULENCE STATISTICS IN FULLY-DEVELOPED CHANNEL FLOW AT LOW REYNOLDS-NUMBER [J].
KIM, J ;
MOIN, P ;
MOSER, R .
JOURNAL OF FLUID MECHANICS, 1987, 177 :133-166
[7]   REYNOLDS-STRESS AND DISSIPATION-RATE BUDGETS IN A TURBULENT CHANNEL FLOW [J].
MANSOUR, NN ;
KIM, J ;
MOIN, P .
JOURNAL OF FLUID MECHANICS, 1988, 194 :15-44
[8]  
TENNEKES H, 1972, 1ST COURSE TURBULENC