DDES with adaptive coefficient for stalled flows past a wind turbine airfoil
DDES with adaptive coefficient for stalled flows past a wind turbine airfoil
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DDES 具有针对经过风力涡轮机翼型的失速流的自适应系数
DOI:
10.1016/j.energy.2018.07.176
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发表时间:
2018-10
期刊:
影响因子:
9
通讯作者:
Zhitao Liu
中科院分区:
文献类型:
--
作者:
Jian Liu;Wenqing Zhu;Zhixiang Xiao;Haisheng Sun;Yong Huang;Zhitao Liu
A new delayed detached eddy simulation method with adaptive coefficient (DDES-AC) is proposed to overcome the transition delay from Reynolds-averaged Navier–Stokes (RANS) to large eddy simulation (LES) in the simulation of the mild, moderate separation, and dynamic stall flows past a wind turbine airfoil (NACA0015). The coefficientCDESis designed to be adaptive with the flow patterns, quasi-2D or 3D vortex structures, which aids in reducing the modelled eddy viscosity in the initial region of the separated shear layer. The DDES-AC is proved to be effective in the simulation of a fully attached plate flow without additional skin friction loss and a NACA0015 airfoil with a mild trailing edge separation. It also outperforms the DDES in moderate separation at an angle of attack beyond the static stall. The DDES presents “delay behaviour” in the dynamic stall simulation, resulting in an underestimation of the drag and pitching moment peaks and a deferred recovery of those in the downstroke. However, the DDES-AC improves the prediction accuracy and agrees excellently with the available experiment data.
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DOI:
10.1115/ht-fed2004-56437
发表时间:
2004
期刊:
--
影响因子:
--
作者:
J. Szydlowski;M. Costes
通讯作者:
J. Szydlowski;M. Costes
影响因子:
11.2
作者:
A. Rezaeiha;I. Kalkman;B. Blocken
通讯作者:
A. Rezaeiha;I. Kalkman;B. Blocken
影响因子:
2.5
作者:
Jian Liu;Zhixiang Xiao;S. Fu
通讯作者:
Jian Liu;Zhixiang Xiao;S. Fu
影响因子:
2.4
作者:
A. Gardner;Christian Klein;Werner Sachs;U. Henne;Holger Mai;K. Richter
通讯作者:
A. Gardner;Christian Klein;Werner Sachs;U. Henne;Holger Mai;K. Richter
影响因子:
4.1
作者:
S. Guntur;N. Sørensen;S. Schreck;Leonardo Bergami
通讯作者:
S. Guntur;N. Sørensen;S. Schreck;Leonardo Bergami