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Stabilized finite element technique and its application for turbulent flow with high Reynolds number
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  • Stabilized finite element technique and its application for turbulent flow with high Reynolds number
  • Stabilized finite element technique and its application for turbulent flow with high Reynolds number
저자명
Huang. Cheng,Yan. Bao,Zhou. Dai,Xu. Jinquan
간행물명
Wind & structures
권/호정보
2011년|14권 5호|pp.465-480 (16 pages)
발행정보
테크노프레스
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this paper, a stabilized large eddy simulation technique is developed to predict turbulent flow with high Reynolds number. Streamline Upwind Petrov-Galerkin (SUPG) stabilized method and three-step technique are both implemented for the finite element formulation of Smagorinsky sub-grid scale (SGS) model. Temporal discretization is performed using three-step technique with viscous term treated implicitly. And the pressure is computed from Poisson equation derived from the incompressible condition. Then two numerical examples of turbulent flow with high Reynolds number are discussed. One is lid driven flow at Re = $10^5$ in a triangular cavity, the other is turbulent flow past a square cylinder at Re = 22000. Results show that the present technique can effectively suppress the instabilities of turbulent flow caused by traditional FEM and well predict the unsteady flow even with coarse mesh.