LES wall modeling for heat transfer at high speeds

LES wall modeling for heat transfer at high speeds
复制标题

用于高速传热的 LES 壁建模

DOI:
10.1103/physrevfluids.7.014608
复制
发表时间:
2021-05
期刊:
Physical Review Fluids
影响因子:
--
通讯作者:
Xiang I A Yang
Xiang I A Yang
中科院分区:
其他
文献类型:
--
作者:
Peng E S Chen;Yu Lv;Haosen H A Xu;Yipeng Shi;Xiang I A Yang

文献摘要

参考文献

相似文献

通用壁缩放的一个实际应用是近壁湍流建模。在本文中,我们利用温度的半局部标度[Patel、Boersma 和 Pecnik,{可变属性湍流通道流中的标量统计},Phys。 Rev. Fluids, 2017, 2(8), 084604]并推导出用于高速流动的壁面建模大涡模拟的涡导闭合。我们表明,虽然半局部缩放不会破坏高速直接数值模拟(DNS)数据,但所得的涡流电导率和壁模型效果相当好。本文试图回答以下悬而未决的问题:为什么半局部缩放失败,但产生的涡流传导效果良好。我们以从 $M=1.4$ 到 6 的马赫数进行库埃特流的 DNS。我们在能量方程中添加一个源项以获得冷壁、接近绝热壁和热壁。对流动能量预算的详细分析表明,气动加热是我们问题的答案:Patel 等人的半局部缩放中没有考虑气动加热,而是在平衡壁模型中进行了建模。我们将空气动力加热纳入半局部缩放中,并表明新的缩放成功地崩溃了高速 DNS 数据。我们还表明,无论是否结合空气动力加热,半局部缩放都会产生完全相同的涡流传导率,从而回答了悬而未决的问题。
A practical application of universal wall scalings is near-wall turbulence modeling. In this paper, we exploit temperature's semi-local scaling [Patel, Boersma, and Pecnik, {Scalar statistics in variable property turbulent channel flows}, Phys. Rev. Fluids, 2017, 2(8), 084604] and derive an eddy conductivity closure for wall-modeled large-eddy simulation of high-speed flows. We show that while the semi-local scaling does not collapse high-speed direct numerical simulation (DNS) data, the resulting eddy conductivity and the wall model work fairly well. The paper attempts to answer the following outstanding question: why the semi-local scaling fails but the resulting eddy conductivity works well. We conduct DNSs of Couette flows at Mach numbers from $M=1.4$ to 6. We add a source term in the energy equation to get a cold, a close-to-adiabatic wall, and a hot wall. Detailed analysis of the flows' energy budgets shows that aerodynamic heating is the answer to our question: aerodynamic heating is not accounted for in Patel et al.'s semi-local scaling but is modeled in the equilibrium wall model. We incorporate aerodynamic heating in semi-local scaling and show that the new scaling successfully collapses the high-speed DNS data. We also show that incorporating aerodynamic heating or not, the semi-local scaling gives rise to the exact same eddy conductivity, thereby answering the outstanding question.
DOI: 10.1002/qj.3839
发表时间: 2020-08
影响因子: 8.9
作者:
Qi Li;E. Bou‐Zeid;S. Grimmond;S. Zilitinkevich;G. Katul
通讯作者: Qi Li;E. Bou‐Zeid;S. Grimmond;S. Zilitinkevich;G. Katul
DOI: 10.1007/s10546-016-0157-6
发表时间: 2016-09-01
影响因子: 4.3
作者:
Giometto, M. G.;Christen, A.;Parlange, M. B.
通讯作者: Parlange, M. B.
DOI: 10.1063/5.0045879
发表时间: 2021
期刊: Physics of Fluids
影响因子: 4.6
作者:
Wang Hai-Ning;Huang Wei-Xi;Xu Chun-Xiao
通讯作者: Xu Chun-Xiao
DOI: 10.2514/6.2014-0070
发表时间: 2014-01
期刊: --
影响因子: --
作者:
C. Kiris;M. Barad;J. Housman;E. Sozer;C. Brehm;S. Moini-Yekta
通讯作者: C. Kiris;M. Barad;J. Housman;E. Sozer;C. Brehm;S. Moini-Yekta
DOI: 10.2514/6.2011-2886
发表时间: 2011-06
期刊: --
影响因子: --
作者:
Y. Khalighi;J. Nichols;S. Lele;P. Moin
通讯作者: Y. Khalighi;J. Nichols;S. Lele;P. Moin