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

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