flow stream velocity的意思|示意

The effective shear stress not only generalizes the flow intensity but also summarizes the flow intensities of mean flow velocity, stream power and unit stream power.

这一有效切应力不但是对切应力类水流强度指标的总结，还可以概括平均流速和水流功率等水流强度指标。

The effects of curvature and torsion on secondary flow, isoline of stream function and distribution of the axial velocity of flow were discussed.

讨论了曲率和挠度对二次流动、流函数等值线和轴向速度的影响，研究了不同曲率和挠度螺旋管道内流量与压力梯度之间的关系。

Both the flow velocity and the unit stream energy are the indexes to evaluate the degree of difficulty for the river closure.

龙口流速和单宽功率是衡量截流困难度的两个重要指标，了解其变化规律对截流设计和施工都有极大的意义。

The results of preliminary experiments show that the distribution of stream-wise particle velocity follows the log-law, and the particle velocity is lower than the corresponding clean water flow.

试验可以得出颗粒三维运动的瞬时速度，初步试验得出颗粒的纵向平均速度遵循对数分布，颗粒速度小于相应水流的运动速度。

The movement and diffusion process of pollutants in current of water are affected by water temperature, local flow velocity and direction, stream shape, and so on.

由于污染物在水流中的扩散迁移过程受水温、局部流速与流向、河道形状等因素的影响。

The characteristic of this model is only to know basic and natural boundary condition, then the stream function and flow velocity required on the boundary are obtained.

这一模型的特点只需要知道边界上的基本边界条件和自然边界条件，就可以得到边界上所需要求的流函数和水流速度；