旋转矩形通道内湍流雷诺应力分析

马良栋 1; 2; 李增耀 1; 陶文铨 1

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旋转矩形通道内湍流雷诺应力分析

更新时间：2025-07-09

- 旋转矩形通道内湍流雷诺应力分析
- Analysis of Turbulent Reynolds Stresses in Rotating Square Duct along Its Spanwise Direction
- 西安交通大学学报 2009年43卷第7期页码：6-10
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 大连理工大学土木水利学院,辽宁,大连,116024
- 作者简介：
- 基金信息：
  
  : 2008-09-12. 作者简介: 马良栋(1976-),男,博士;李增耀(联系人),男,副教授. 基金项目: 国家自然科学基金重点资助项目(50636050);国家重点基础研究发展规划资助项目(G2007CB206902)
- DOI：
  中图分类号： TK124
- 网络首发：2009-07-10，
  
  纸质出版：2009
- 稿件说明：
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马良栋 1, 2, 李增耀 1, 等. 旋转矩形通道内湍流雷诺应力分析[J]. 西安交通大学学报, 2009,43(7):6-10.

Analysis of Turbulent Reynolds Stresses in Rotating Square Duct along Its Spanwise Direction[J]. 2009, 43(7): 6-10.
马良栋 1, 2, 李增耀 1, 等. 旋转矩形通道内湍流雷诺应力分析[J]. 西安交通大学学报, 2009,43(7):6-10. DOI：

Analysis of Turbulent Reynolds Stresses in Rotating Square Duct along Its Spanwise Direction[J]. 2009, 43(7): 6-10. DOI：

摘要

采用直接数值模拟方法对旋转矩形通道内的湍流流动和换热进行了研究.非稳态N-S方程的空间离散采用二阶中心差分法

时间推进采用二阶显式Adams-Bashforth格式.通过分析近壁湍流雷诺应力输运方程各项的分布以及比较壁面附近湍流生成和耗散强度

讨论了科氏力对湍流脉动的影响.结果表明:系统旋转效应增强了压力面附近的湍流生成、黏性耗散、黏性扩散、湍流扩散及压力应变相关项和压力速度扩散项

而在吸力面附近

雷诺应力输运方程中各项因旋转而受到强烈抑制.

Abstract

The direct numerical simulation is performed to investigate the turbulent flow and heat transfer in a square duct rotating along its spanwise direction. The spatial terms in the governing equations are discretized by the second-order central difference scheme and the time terms are discretized by the Adams-Bashforth scheme. The influence of the Coriolis force on turbulent fluctuation is explored by the analysis on the distribution of all terms in the Reynolds stresses transport equation and the comparison of the turbulence generation with dissipation rate near the wall. The results show that

near the pressure wall

the generation and dissipation terms in the Reynolds stress transport equation

the turbulent diffusion

molecular diffusion

pressure-strain

and the pressure diffusion are all enhanced because of the rotation effect of the system. However

in the suction wall region

all the turbulence generation

dissipation and other terms in the Reynolds stresses transport equation are depressed significantly.

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references

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