• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering Applications of Computational Fluid Mechanics >Numerical Simulation of Turbulence Modulation by Cylindrical Particles in Round Jet
【24h】

Numerical Simulation of Turbulence Modulation by Cylindrical Particles in Round Jet

机译：圆形射流中圆柱颗粒对湍流调制的数值模拟

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

AbstractIn order to explore the turbulence modulation by cylindrical particles, the equation describing the probability density functions for the particle orientation, and the equations of Reynolds averaged Navier-Stokes, turbulence kinetic energy and turbulence dissipation rate with additional terms of particles are used and solved numerically in a round jet flow. The turbulence modulation at different axial distances from the nozzle exit in the initial region is given, and the effects of particle concentration, particle aspect ratio and Reynolds number on the mean streamwise velocity, turbulence kinetic energy and turbulent viscosity are analyzed for the particle mass concentrations ranged from 0 to 0.01%, Reynolds number ranged from 4000 to 13000, and particle aspect ratio ranged from 5 to 35. The results show that the critical parameter used to explain the increase or decrease of turbulent intensity caused by the addition of spherical particles is not suitable to explain the case of cylindrical partic...
机译：摘要为了探索圆柱状颗粒的湍流调制，使用描述颗粒取向的概率密度函数的方程式，雷诺兹平均Navier-Stokes方程，湍流动能和湍流耗散率以及附加的颗粒项方程，并进行了数值求解在圆射流中。给出了在初始区域距喷嘴出口不同轴向距离处的湍流调制，并分析了颗粒质量浓度对颗粒浓度，颗粒长宽比和雷诺数对平均流速，湍流动能和湍流粘度的影响。范围从0到0.01％，雷诺数从4000到13000，颗粒长宽比从5到35。结果表明，用于解释由于添加球形颗粒而引起的湍流强度增加或减少的关键参数是不适合解释圆柱状颗粒的情况...

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号