- 변분다중스케일법을 이용한 파형벽면이 있는 채널 난류 유동의 대와류모사
- ㆍ 저자명
- 장경식,윤범상,이주성,Chang. Kyoung-Sik,Yoon. Bum-Sang,Lee. Joo-Sung
- ㆍ 간행물명
- 한국전산유체공학회지
- ㆍ 권/호정보
- 2011년|16권 2호|pp.49-55 (7 pages)
- ㆍ 발행정보
- 한국전산유체공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Turbulent flows with wavy wall are simulated using Residual-based Variational Multiscale Method (RB-VMS) which is proposed by Bazilves et al(2007) as new Large Eddy Simulation methodology. Incompressible Navier-Stokes equations are integrated using Isogeometric analysis which adopt the basis function as NURBS. The Reynolds number is 6760 based on the bulk velocity and averaged channel height. And the amplitude (${alpha}/{lambda}$) of wavy wall is 0.05. The computational domain is $2{lambda}{ imes}1.05{lambda}{ imes}{lambda}$ in the streamwise, wall normal and spanwise direction. Mean quantities and turbulent statistics near wavy wall are compared with DNS results of Cherukat et al.(1998). The predicted results show good agreement with reference data.