粘性是液体流层问相对运动而产生的摩擦力或阻力。油层间所产生的运动阻力称为粘性摩擦力。
Viscous friction is the fiction, or resistance to relative motion, between adjacent layers of liquid. The resistance of motion between these oil layers is called viscous friction.
分析了偏心距和旋转对于二次流以及轴向速度分布的影响，同时给出了平均摩擦系数和壁面摩擦力的分布。
Effects of eccentricity and rotation on the secondary flow and maximal axial velocity were analyzed, and the average friction factors and the wall friction distributions were also presented.
分别以油气、气水为工质，对立式螺旋管内气液两相流的摩擦阻力特性进行实验研究。
With oil, gas, water as working fluids, the experiment studies of frictional pressure drop characteristics of oil gas, gas water two phase flow in vertical helically coiled tubes were carried out.
运用部分膜承载热弹流理论计算齿轮传动中的滑动摩擦力和滚动摩擦力。
Upon the theory of hot elastohydrodynamics about part film load bearing, the sliding and rolling friction forces in gear transmission device can be calculated.
摩擦阻力的变化趋势与速度类似，在产生逆向流处出现局部极小值。
The variation of local friction coefficient is similar to velocity and local minimum value occurred in reverse flow area.
通常将垂直柱体在波浪场中的受力分为正向力(顺流力)与升力，它们是由干粘性流绕钝体产生的摩擦阻力和由于水流绕柱分离产生涡漩而形成柱表面压力分布的不均匀变化而造成的。
When waves act on a vertical cylinder, there are in-line and lift forces. They are caused by the viscous effect, which induces the surface frictional force and flow separation and vortex shedding.
本文提出了流固耦合温度场的有限元法，并用于湿式离合器摩擦片的温度场计算。
In the paper a finite element formulation is presented for the fluid-solid integrated temperature fields. It is used in analyzing temperature fields in the friction discs of a wet clutch.
本文提出了流固耦合温度场的有限元法，并用于湿式离合器摩擦片的温度场计算。
In the paper a finite element formulation is presented for the fluid-solid integrated temperature fields. It is used in analyzing temperature fields in the friction discs of a wet clutch.
应用推荐