장경식, 이보현, 윤범상, 이주성, 노명일, "변분 다중 스케일법을 이용한 Ret = 180 채널 난류 유동의 대와류 모사", 2009년도 한국전산유체공학회 추계학술발표회, 대전, pp. 56-59, 2009.11.27-28
Domestic Conference
2013.12.04 17:29
장경식, 이보현, 윤범상, 이주성, 노명일, "변분 다중 스케일법을 이용한 Ret = 180 채널 난류 유동의 대와류 모사", 2009년도 한국전산유체공학회 추계학술발표회, 대전, pp. 56-59, 2009.11.27-28
조회 수 10398
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| Abstract | In the present work, LES with new variational multiscale method is conducted on the fully developed channel flow with Reynolds number is 180 based on the friction velocity and the channel half width. Incompressible Navier-Stokes equations are integrated using finite element method with the basis function of NURBS. To solve space-time equations, Newton's method with two stage predictor multicorretor algorithm is employed. The code is parallelized using MPI. The computational domain is a rectangular box of size 2Pi×2×4/3Pi in the streamwise, wall normal and spanwise direction. Mean velocity profiles and velocity fluctuations are compared with the data of DNS. The results agree well with those of DNS and other traditional LES. |
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| Publication Date | 2009-11-27 |
