water surface slope

The local hydrodynamic intensity and the bend curvature are main factors that make the transversal slope of water surface in the lower bend larger than that in the upper bend.

河口段下游弯道的水面横比降大于上游弯道，当地水动力强度和弯道曲率是其主要影响因素。

This paper discusses the research development of such laws as the lateral slope of the water surface, secondary circulation flow, average velocity along vertical line, distribution of the main streamline and sediment transport characteristics in the river bend.

本文着重对弯道水流水面横比降、横向环流、纵向垂线平均流速分布规律及弯道输沙特性研究进展进行了阐述分析，以便为生产科研方面服务。

Influences of the Three Gorges Hydropower Station ′ s daily regulation on water surface slope of downstream reach

三峡电站日调节对下游河道水面比降的影响

The flow of surface regine and bucket are analyzed on the theory and calculation, this type of flow is a combined slope hydraulic jump within the region of the complex boundary. By use of momentum equation, the conjugate water surfce can be determined.

通过对面流和戽流的理论与计算方面的分析.认为面流和戽流的流态均为复合边界内的组合斜坡水跃，可采用动量方程式确定其水面衔接。

The evaporating amount of water surface of the sunny slope was 18.04% more than that of the shady slope in the dry season.

旱季阳坡水面蒸发总量较阴坡高18.04%；

The slope was dealt as porous media, namely, the permeable layer under the water surface was filled with particles. The spatial average flow was solved.

将可渗透斜坡按多孔介质处理，即将自由液面以下的可渗透层离散成流体粒子，求解的是空间平均流动。

Test results show that the water surface slope, velocity and ratio of water depth to draft are the main influencing factors of ships ascending rapids.

试验结果表明，滩段的水面比降、水流速度及船舶水深吃水比是船舶上滩的主要影响因素。