STUDY ON REYNOLDS STRESS TRANSPORTATION IN A TURBULENT CHANNEL FLOW WITH SPANWISE OSCILLATING WALL

机译：用枝条振动壁释放湍流通道流量雷诺应力运输研究

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An investigation of a turbulent channel flow subjected to spanwise wall oscillation is carried out via direct numerical simulation. By wall oscillation, turbulence is suppressed and friction drag is reduced. The transportation of Reynolds stresses under the influence of the oscillating wall is analyzed at the initial and statistically stationary stages to further disclose the mechanism of turbulence suppression and drag reduction. It is found that the moving wall can cause the transient growth of spanwise velocity fluctuations only at the very beginning of wall oscillation and thereafter the pressure-strain terms play an important role. The attenuation of turbulence intensities and skin friction at the statistically stationary stage is mainly due to the sustained reduction of the pressure-strain terms.

机译：通过直接数值模拟进行对经过翼展壁振荡的湍流通道流的研究。通过壁振荡，抑制湍流，减少了摩擦阻力。在初始和统计的静止阶段分析在振荡壁的影响下，在振荡壁的影响下运输雷诺应力，以进一步公开湍流抑制和减阻的机理。发现移动壁可以仅在壁振荡的开始时造成翼展速度波动的瞬态生长，然后压力 - 应变术语发挥着重要作用。在统计上固定阶段的湍流强度和皮肤摩擦的衰减主要是由于压力 - 应变术语的持续降低。

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《International Conference on Fluid Mechanics》|2004年||共4页
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Weixi Huang; Chunxiao Xu; Guixiang Cui; Zhaoshun Zhang;
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正文语种
中图分类流体力学;
关键词
wall oscillation; drag reduction; wall turbulence;

机译：墙面振荡;减少减少;墙壁湍流;

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专利

1. Transient response of Reynolds stress transport to spanwise wall oscillation in a turbulent channel flow [J] . Xu CX, Huang WX Physics of fluids . 2005,第1期

机译：雷诺应力传递对湍流通道流中展向壁振动的瞬态响应
2. Direct numerical simulation analysis of spanwise oscillating Lorentz force in turbulent channel flow at low Reynolds number [J] . Altintas Atilla, Davidson Lars Acta Mechanica . 2017,第4期

机译：低雷诺数在湍流通道流中跨跨越洛伦兹力的直接数值模拟分析
3. Reynolds number effect on drag control via spanwise wall oscillation in turbulent channel flows [J] . Yao Jie, Chen Xi, Hussain Fazle Physics of fluids . 2019,第8期

机译：通过湍流通道流动通过翼展壁振荡阻力控制的雷诺数效应
4. STUDY ON REYNOLDS STRESS TRANSPORTATION IN A TURBULENT CHANNEL FLOW WITH SPANWISE OSCILLATING WALL [C] . Weixi Huang, Chunxiao Xu, Guixiang Cui, International Conference on Fluid Mechanics; 20040720-30; Dalian(CN) . 2004

机译：平板振荡壁湍流流中雷诺应力传输的研究
5. TURBULENT WALL EDDY STRUCTURE AND THE REYNOLDS STRESS PRODUCTION IN THE WALL REGION OF A PIPE FLOW. [D] . LEE, MYON KI. 1975

机译：管壁流动区的湍流壁涡结构和雷诺应力产生。
6. Wall-Normal Variation of Spanwise Streak Spacing in Turbulent Boundary Layer With Low-to-Moderate Reynolds Number [O] . Wenkang Wang, Chong Pan, Jinjun Wang 2019

机译：湍流边界层中翼展条纹间距的壁正常变化低至中等雷诺数
7. Investigation on Spanwise Wall Oscillation in Turbulent Channel Flow Based on Reynolds Stress Model (RSM) [O] . Dehao Duan, Jinbai Zhang, Zhenxun Gao 2015

机译：基于雷诺应力模型（RSM）的湍流通道内壁向振动的研究
8. Computation of Turbulent Heat Transfer on the Walls of a 180 Degree Turn Channel With a Low Reynolds Number Reynolds Stress Model [R] . Ameri, A. A. , Rigby, D. L. , Steinthorsson, E. 2002

机译：用低雷诺数雷诺应力模型计算180度转弯通道壁上的湍流传热

STUDY ON REYNOLDS STRESS TRANSPORTATION IN A TURBULENT CHANNEL FLOW WITH SPANWISE OSCILLATING WALL

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