层流和紊流

最后在实验基础上，拟合出工质在层流和紊流下的流动阻力经验关联式。

Based on the experiments , the flow resistance empirical correlations are obtained in laminar flow and turbulent flow regions .

分别针对自下而上和水平向的渗流，分析不同粒径的可动颗粒在层流和紊流两种状态下的受力，从而得到不同状态下的管涌发生时的临界水力梯度。

Considering both vertical seepage and horizontal seepage , the moving grain with different diameter was analyzed under the conditions of laminar flow and turbulent flow , and different critical hydraulic gradients were educed according to different pipe seepage .

本文导出层流和紊流状态下的动力流速修正系数表达式，并介绍计算机在线处理方法，给出实验结果。

A method of on-line computer processing and test results are described .

在层流和紊流中轴向气流对纤维的作用力

The Air Drag on a Fiber in Axial Laminar and Turbulent Flow

黏性流、层流和紊流边界层。

Viscous-fluid flow , laminar and turbulent boundary layers .

迷宫式流道内部流体流动的雷诺数Re为105～930，层流和紊流的流态转捩的临界雷诺数比常规尺度流道的值要小，低于255。

The critical Reynolds number for flow transition from laminar flow to turbulent flow is 255 .

给出了层流和紊流条件下新的管道油流带电计算模型。

The new computational models for describing streaming electrification of oil with laminar and turbulent flow states are presented .

提出了液体流动为层流和紊流时气泡上升速度的表达式，研究结果与实验数据进行比较，符合较好。

Approximate expressions for the Taylor bubble velocity are proposed , and shown to be in good agreement with the experimental data .

采用层流和紊流两种模型对水平管外垂下液膜的强制对流蒸发换热性能进行了数值计算。

Numerical analyses and experiments were carried out to obtain the evaporating heat transfer characteristics of falling film on horizontal heated single tube and tube arrays .

本文的方法可用来计算任意迥转面叶栅可压流体层流和紊流的附面层流动。

The comparison between calculations and experiments has shown that the present method can be used for computing the laminar and turbulent boundary layers of the cascades on the stream surface of revolution .

当含水原油为非牛顿流体时，介绍了幂律流体和宾汉流体的本构方程、流态判别方法、层流和紊流压降计算公式。

When the fluid is non-Newtonian fluid , the constitutive equation , method of flow profile distinguishing , pressure drop calcuation of laminate flow and turbulent flow of Power-law fluid and Bingham fluid is introduced .

本文借助雷诺数分析了液体粘性传动装置摩擦副间介质层流和紊流的流态，研究了液体粘性传动的摩擦片工作在混合摩擦区、油膜剪切区、加速区传递的转矩。

The paper uses Reynolds number to analyse the form of the liquid in the hydro-viscous drive system , research transmission torque of the hydro-viscous drive system rubs who work in mixed friction film cutting area and acceleration area .

本文用流体力学的边界层理论，对锥阀阀口在层流和紊流状态的压力分布进行了分析，给出了轴向力的理论公式。

Ana - lyses the pressure distribution at the port of conical valve when the fluid flow of the valve port is laminar and turbulent . Then the theoretical formula of axial force is obtained with the theory of boundary layer .

运用数值模拟的方法对线性波作用下的层流边界层和紊流边界层进行了研究。

Study on bottom shear stress of laminar boundary layer under the action of random waves ;

本文根据理论分析和气液两相流的室内实验，得出了气液两相气泡流的空隙率分布以及在层流条件下和紊流条件下的速度分布规律。

Based on the theoretical analysis and the experiments on two-phase flow in laboratory , some rules of the distributions of the porosity in two-phase gas bubble flow and the velocity under laminar flow and turbulent flow conditions are obtained .

可用偏心环空牛顿流体层流区域方程确定环空局部层流和紊流区域范围。

Also we can determine partial annular turbulent and laminar flow area range using laminar flow area equation of eccentric annular Newtonian fluid .