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CLC number: TU31

On-line Access: 2011-04-11

Received: 2010-03-26

Revision Accepted: 2010-09-02

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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.4 P.278-290

http://doi.org/10.1631/jzus.A1000114


Large eddy simulation for wind field analysis based on stabilized finite element method


Author(s):  Cheng Huang, Yan Bao, Dai Zhou, Jin-quan Xu

Affiliation(s):  School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Corresponding email(s):   ryanhuang@sjtu.edu.cn, ybao@sjtu.edu.cn, zhoudai@sjtu.edu.cn, jqxu@sjtu.edu.cn

Key Words:  Large eddy simulation (LES), Subgrid-scale model, Stabilized finite element method (FEM), Unstructured grid, Wind flow


Cheng Huang, Yan Bao, Dai Zhou, Jin-quan Xu. Large eddy simulation for wind field analysis based on stabilized finite element method[J]. Journal of Zhejiang University Science A, 2011, 12(4): 278-290.

@article{title="Large eddy simulation for wind field analysis based on stabilized finite element method",
author="Cheng Huang, Yan Bao, Dai Zhou, Jin-quan Xu",
journal="Journal of Zhejiang University Science A",
volume="12",
number="4",
pages="278-290",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1000114"
}

%0 Journal Article
%T Large eddy simulation for wind field analysis based on stabilized finite element method
%A Cheng Huang
%A Yan Bao
%A Dai Zhou
%A Jin-quan Xu
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 4
%P 278-290
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1000114

TY - JOUR
T1 - Large eddy simulation for wind field analysis based on stabilized finite element method
A1 - Cheng Huang
A1 - Yan Bao
A1 - Dai Zhou
A1 - Jin-quan Xu
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 4
SP - 278
EP - 290
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1000114


Abstract: 
In this paper, a stabilized finite element technique, actualized by streamline upwind Petrov-Galerkin (SUPG) stabilized method and three-step finite element method (FEM), for large eddy simulation (LES) is developed to predict the wind flow with high Reynolds numbers. Weak form of LES motion equation is combined with the SUPG stabilized term for the spatial finite element discretization. An explicit three-step scheme is implemented for the temporal discretization. For the numerical example of 2D wind flow over a square rib at Re=4.2×105, the Smagorinsky’s subgrid-scale (SSGS) model, the DSGS model, and the DSGS model with Cabot near-wall model are applied, and their results are analyzed and compared with experimental results. Furthermore, numerical examples of 3D wind flow around a surface-mounted cube with different Reynolds numbers are performed using DSGS model with Cabot near-wall model based on the present stabilized method to study the wind field and compared with experimental and numerical results. Finally, vortex structures for wind flow around a surface-mounted cube are studied by present numerical method. Stable and satisfactory results are obtained, which are consistent with most of the measurements even under coarse mesh.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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