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Large-eddy Simulation of Turbulent Flows in A Heated Streamwise Rotating Channel.

机译:流加热旋转通道内湍流的大涡模拟。

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摘要

In this thesis, large-eddy simulation has been performed to investigate a heated plane channel flow subjected to streamwise system rotations. A variety of rotation numbers ranging from Ro τ = 0 to 15 have been tested in conjunction with two fixed low Reynolds numbers Reτ = 150 and 300. The fundamental characteristics of the resolved velocity and temperature fields in terms of their mean and root-mean-square (RMS) values are investigated. Advanced physical features in terms of the transport of turbulent stresses, turbulent kinetic energy (TKE), heat fluxes and forward and backward scatter of local kinetic energy (KE) fluxes between the resolved and subgrid scales are also studied. Numerical simulations were performed using the conventional dynamic model (DM) and an advanced dynamic nonlinear model (DNM) for closure of the filter momentum equation, and an advanced dynamic full linear tensor thermal diffusivity model (DFLTDM) for closure of the filtered thermal energy equation.
机译:在本文中,进行了大涡模拟,以研究受流向系统旋转的受热平面通道流。已结合两个固定的低雷诺数Reτ= 150和300对从Roτ= 0到15的各种旋转数进行了测试。解析的速度和温度场的基本特征,包括均值和均方根值。对平方(RMS)值进行研究。在湍流应力,湍流动能(TKE),热通量以及解析和子网格尺度之间的局部动能(KE)通量的向前和向后散射方面,还研究了先进的物理特征。使用常规动力学模型(DM)和高级动态非线性模型(DNM)来完成滤波器动量方程的闭合,并使用高级动态全线性张量热扩散率模型(DFLTDM)来进行滤波,以完成滤波后的热能方程的闭合。 。

著录项

  • 作者

    Zhang, Ye.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Engineering Mechanical.;Physics Fluid and Plasma.
  • 学位 M.Sc.
  • 年度 2012
  • 页码 103 p.
  • 总页数 103
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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