2) three-dimensional turbulent flow field
三维湍流场
1.
Numerical simulation of the three-dimensional turbulent flow field inside a nozzleless volute of a centripetal turbine is described.
用k-ε湍流模型对无叶蜗壳内的三维湍流场进行了数值模拟,给出了模拟计算结果,并与实测流场作了比较,两者的分布规律吻合。
3) 3D turbulent flow
三维湍流
1.
Based on Reynolds average N-S Equation and SIMPLEC, the RNG κ - ε model and wall surface function was applied to study the 3D turbulent flow in the impeller.
根据低比速离心泵叶轮流道的几何和流场特点,简要阐述了计算的控制方程和叶轮通道网格划分方法,采用压强连接的隐式修正SIMPLEC算法,结合雷诺平均法的RNGκ?ε模型和壁面函数法对叶轮内部的三维湍流流动进行计算。
4) revolution body's 3D viscous flow field
回转体三维湍流场
5) 3 D turbulent reacting flow
三维湍流反应流
6) 3D turbulent flow
三维湍流流动
1.
Numerical simulation of 3D turbulent flow in a vertical axial-flow pump system;
立式轴流泵装置的三维湍流流动数值模拟
2.
By the help of numerical computation mainly while by the help of model test secondly, the numerical computations of 3D turbulent flow and optimum hydraulic design for the inlet and outlet conduits of both front-positioned and rear-positioned pit tubular pump system are completed respectively, improvements of the hydraulic performance of the pit tubular pump system are studied deeply in this paper.
本文采用以数值模拟为主、模型试验为辅的方法分别对前置竖井式贯流泵装置和后置竖井式贯流泵装置的进、出水流道进行了三维湍流流动数值模拟和优化水力设计,对提高竖井式贯流泵装置的水力性能进行了较为深入的研究。
补充资料:超流湍流态(superfluidturbulentstates)
超流湍流态(superfluidturbulentstates)
液HeⅡ中流速超过临界值vc时,有附加阻力存在,出现耗散流,非线性效应明显。例如有温度差时,在热流不大的线性范围,热流正比于温度梯度`\nablaT`,但流速超过vc后,热流即减小,它正比于$(\nablaT)^{1//3}$。这类耗散现象称超流湍流,所处的这种状态称超流湍流态,它可视为由大量涡旋线的存在而发生的。
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参考词条