DDES with adaptive coefficient for stalled flows past a wind turbine airfoil

DDES with adaptive coefficient for stalled flows past a wind turbine airfoil
复制标题

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
复制
发表时间:
2018-10
期刊:
影响因子:
9
通讯作者:
Zhitao Liu
Zhitao Liu
中科院分区:
工程技术1区
文献类型:
--
作者:
Jian Liu;Wenqing Zhu;Zhixiang Xiao;Haisheng Sun;Yong Huang;Zhitao Liu

文献摘要

参考文献

被引文献

相似文献

为了克服雷诺平均Navier-Stokes方程(RANS)到大涡模拟(LES)之间的过渡延迟,提出了一种新的带自适应系数的延迟分离涡模拟方法(DDES-AC),用于模拟风力涡轮机翼型(NACA 0015)的轻、中度分离和动态失速流动。系数CDEs设计成与流型、准二维或三维涡流结构相适应,这有助于降低分离剪切层初始区域的模拟涡流粘度。在无附加表面摩擦损失的全附着平板流动和有轻度后缘分离的NACA 0015翼型的数值模拟中,DDES-AC被证明是有效的。在超过静态失速的迎角下,它在中等分离中的性能也优于DDES。DDES在动态失速模拟中表现出“延迟行为”,导致对阻力和俯仰力矩峰值的低估,并推迟了下冲程中阻力和俯仰力矩峰值的恢复。然而,DDES-AC提高了预测精度,并与现有的实验数据吻合良好。
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.
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
DOI: 10.1016/j.apenergy.2017.03.128
发表时间: 2017-07
期刊: Applied Energy
影响因子: 11.2
作者:
A. Rezaeiha;I. Kalkman;B. Blocken
通讯作者: A. Rezaeiha;I. Kalkman;B. Blocken
DOI: 10.2514/1.j056466
发表时间: 2018-05
期刊: AIAA Journal
影响因子: 2.5
作者:
Jian Liu;Zhixiang Xiao;S. Fu
通讯作者: Jian Liu;Zhixiang Xiao;S. Fu
DOI: 10.1007/s00348-014-1807-4
发表时间: 2014-05
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
DOI: 10.1002/we.1839
发表时间: 2016-03
期刊: Wind Energy
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