Implicit time integration method for LES of complex flows

被引：2

作者：

Daude, Frederic ^{[1
]}

Mary, Ivan ^{[1
]}

Comte, Pierre ^{[1
,2
]}

机构：

[1] Off Natl Etud & Rech Aerosp, 29 Ave Div Leclerc, F-92322 Chatillon, France

[2] ENSMA, LEA, CEAT, F-86036 Poitiers, France

来源：

DIRECT AND LARGE-EDDY SIMULATION VI | 2006年 / 10卷

关键词：

D O I：

10.1007/978-1-4020-5152-2_89

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Implicit time integration is studied on the coupled RANS/LES of the transitional boundary layer around an airfoil near stall. A reference solution to compare with the implicit Gear scheme is determined with an explicit three-stage Runge-Kutta scheme. It is first shown that implicit simulation can find again explicit results in the transition region with a reduction factor of 2 for the CPU time. Then, large time steps can be used without threatening the agreement with explicit simulation, with similar reduction of the computational cost.

引用

页码：771 / +

页数：2

共 10 条

[1] EFFECTS OF THE COMPUTATIONAL TIME-STEP ON NUMERICAL-SOLUTIONS OF TURBULENT-FLOW [J].

CHOI, H ;

MOIN, P .

JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 113 (01) :1-4

[2]

ILLY H, 2004, CONTROL FLOW OSCILLA

[3] Large-eddy simulation of a compressible flow in a three-dimensional open cavity at high Reynolds number [J].

Larchevêque, L ;

Sagaut, P ;

Lê, TH ;

Comte, P .

JOURNAL OF FLUID MECHANICS, 2004, 516 :265-301

[4] Subgrid-scale models for large-eddy simulations of compressible wall bounded flows [J].

Lenormand, E ;

Sagaut, P ;

Phuoc, LT ;

Comte, P .

AIAA JOURNAL, 2000, 38 (08) :1340-1350

[5] Favre filtering and macro-temperature in large-eddy simulations of compressible turbulence [J].

Lesieur, M ;

Comte, P .

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE, 2001, 329 (05) :363-368

[6] Large eddy simulation of flow around an airfoil near stall [J].

Mary, I ;

Sagaut, P .

AIAA JOURNAL, 2002, 40 (06) :1139-1145

[7]

NOLIN G, 2005, 20054998 AIAA

[8]

PECHIER M, 1999, THESIS U POITIERS

[9] FLUX VECTOR SPLITTING OF THE INVISCID GAS-DYNAMIC EQUATIONS WITH APPLICATION TO FINITE-DIFFERENCE METHODS [J].

STEGER, JL ;

WARMING, RF .

JOURNAL OF COMPUTATIONAL PHYSICS, 1981, 40 (02) :263-293

[10]

WEBER C, 1998, THESIS INPT

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