Turbulent kinetic energy(TKE)是湍流动能,单位是J/kg(焦耳/千克),用于衡量湍流强度,代表流体紊乱强度和流
1.雷诺数(Reynolds number): 雷诺数计算公式 2.湍流强度(Turbulent Intensity): 湍流强度计算公式 3.湍流动能(Turbulent Kinetic Energy): 湍流动能计算公式 4.湍流长度尺度(Turbulent Length Scale): 湍流长度尺度计算公式 5.比耗散率(Specific Dissipation Rate): 比耗散率计算公式 6.湍流耗散率(Turbulent Dissipatio...
定义turbulent kinetic energy为: k=12ul′um′¯ 于是将动量方程乘以 ui′ 有: ∂k∂t=∂∂xl(−12ul′um′um′¯−1ρul′p′¯+2νum′slm′¯−ul¯k)−um′ul′¯slm¯−2νslm′slm′¯ ∂k∂t=∂∂xl(flk)+Pk−εp′ 其中最后两项分别为:product...
νt∝ltut=κ2ε ,引入一个正比系数,可以总结得到一个公式: νt=cμκ2ε (这里, cμ 是一个模型的引入常量) 总结发现,为了得到 νt 的解,我们必须首先得到turnbulence kinetic energy k和dissipation ε 的值,i.e. 我们呢需要为这两个变量引入两个方程。 3.2.1. k-equation 依据上一节的知识,可以...
G as in an average speed gradient caused by the turbulent kinetic energy produced; a is the turbulent kinetic energy; b dissipation rate; u for kinematic viscosity of the liquid,,, =0.09[13]. And are the corresponding to the turbulent kinetic energy dissipation rate of the Prandtl number. ...
G as in an average speed gradient caused by the turbulent kinetic energy produced; a is the turbulent kinetic energy; b dissipation rate; u for kinematic viscosity of the liquid, c=0.09[13]. D and f, respectively corresponding to the turbulent kinetic energy dissipation rate of the Prandtl ...
K is the turbulent kinetic energy; ¦å dissipation rate; the kinematic viscosity ν1 for liquids, 翻译结果4复制译文编辑译文朗读译文返回顶部 K; strive for turbulence kinetic energy for dissipation rate; should the movement to a liquid viscosity. ...
百度文库 期刊文献 图书turbulent kinetic energy单位turbulent kinetic energy单位 Turbulent kinetic energy is commonly expressed in units of joules (J).©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销 ...
I am a newbie here and I got a trouble when calculating turbulent kinetic energy in standard k-epsilon model which I hope anyone out there please help me My problem is like this: I picked 1 point in my cubit domain, run Fluent and exported turbulent kinetic energy at (for example) tim...
Where the average velocity gradient caused by the turbulent kinetic energy production term; for the turbulent kinetic energy; for the dissipation rate; for the liquid kinematic viscosity,,, = 0.09 [13]. And are the turbulent kinetic energy and dissipation rate with the corresponding Prandtl number...