湍流动能 turbulent kinetic energy k=1.5*(u_avg*I)^2 (8-6) 湍流耗散率 turbulent dissipation rate epsilon=C_mu^0.75*k^1.5/l (8-7) 已知湍流强度和长度尺度 , 计算 k-epsilon 指标公式 平均速度 velocity magnitude 湍流强度 intensity 水力直径 Hydraulic Diameter L=dh 特征长度 湍流长度尺度 Length ...
湍流动能的功率谱密度(Power Spectral Density of Turbulent Kinetic Energy,简称TKE PSD)是描述湍流动能在不同频率范围内的分布情况的一种统计量。它表示湍流动能在单位频率范围内的平均能量,通常用单位为J^2/Hz表示。 TKE PSD可以通过对湍流动能信号进行傅里叶变换得到,它反映了湍流动能在不同频率下的能量分布情况...
表2可压缩均匀各向同性湍流的湍动能幂律衰减指数n Table2Decayexponentsofturbulentkineticenergyofcompressibleisotropicturbulence 工况 tgr”ReaMt(t・ to)/fO.51.5718.8～11.80.1l～0.044～17F31.O1.4817.9～11.70.10～0.044～170.51.5l16.5～11.00.24～0.1l6～17F41.0l,4415.0～10.70.22～0.106～17O.51.4911...
Average speed gradient caused by the turbulent kinetic energy produced; for the turbulent kinetic energy; for dissipation rate; for kinematic viscosity of the liquid,,, =0.09[13]. And are the corresponding to the turbulent kinetic energy dissipation rate of the Prandtl number. 翻译...
a式中g为平均速度梯度引起的湍流动能产生项;a为湍流动能;b为耗散率;u为液体的运动粘度, , , , =0.09[13]。和 分别是与湍流动能和耗散率对应的Prandtl数。 In the formula g is the turbulent kinetic energy which the average velocity gradient causes produces the item; a is the turbulent kinetic energ...
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 ...
turbulentkineticenergyanditsdissipationrateofthe湍流动能及其耗散率 系统标签: dissipationturbulentenergykineticrate耗散 117J.Ind.Geophys.Union(April2007)Vol.11,No.2,pp.117-122TurbulentkineticenergyanditsdissipationrateoftheIndonesianthroughflowregionviaLombokandSavuStraitsVivekKumarPandeyandAvinashChandraPandeyK.Ba...
aMechanical Manual (Hand-Winding) 机械指南[translate] aThe production of the turbulent kinetic energy (Gk,m) is calculated using the following relation 动荡动能Gk, m的 (生产) 使用以下联系被计算[translate]
The Application of Turbulent Kinetic Energy Closure Scheme on Mesoscale Model湍流动能闭合方法在中尺度模式中的应用 Turbulent kinetic energy (TKE) closure scheme was developed to simulate atmospheric boundary layer (ABL) in recent years In this paper, TKE closure scheme ... Tang Youhua,Miao Manqian,...
湍流能量(k-ξ)闭合5) turbulent kinetic energy 湍流动能 1. Average velocity and turbulent kinetic energy k distribution were obtained. 476m的六直叶涡轮桨搅拌槽内,采用粒子图像测速仪(PIV)对桨叶区的流场进行了实验研究,得到了桨叶区的平均流速和湍流动能(k)分布,采用大涡PIV方法对湍流动能耗散率(ε)分...