弯道环流

考虑弯道环流影响的平面二维水流泥沙数学模型

Simulation of bend secondary flow effect in a planar 2-D depth-averaged model

弯道环流流速与泥沙横向输移研究

Study of circulating velocity profile and lateral sediment transport in curved channels

弯道环流及其与断面形态关系

Circulation and Cross-section Formulation in Bend Reach

人形弯道环流是解决引水渠首泥沙入渠的有效途径

Efficient way to solve the problem of sediment in the intake headworks by using the symmetry circulation with the reverse Y-shape

弯道环流是影响断面流速和含沙量分布的重要因素。

The secondary flow in river bends has significant effects on flow velocity and sediment concentration distribution in the transverse direction .

弯道环流形成的城陵矶河段莲花塘断面横向水位落差是防洪中非常关心的问题之一。

Water level difference crossing Lianhuatang section reduced by circulation flow is one of the most important problem in flood control .

结果表明：利用有利河势，形成弯道环流，增设拦沙坎，导沙潜堤、束水墙等工程设施，问题是能解决的。

The results show that these problems can be solved by forming bend circulating current in use of physical features of the river , and taking some engineering measures : build debris barrier , sand diversion drowned dike and training wall .

结合水力学知识，研究了弯道中水流的环流形成机理，给出了弯道中的横向自由水面表达式。

Combining the knowledge of hydraulics , the reason of formation of the circumfluence is studied and the equation of free water level in curving channels is given .

天然的河流河道基本都是蜿蜒曲折的，由于弯道形态的影响，弯道中存在横向环流，这就使得弯道中水流的输移有着截然不同与顺直河道的特性。

The natural channel is always curved . So it exist the second circulation . Which made the water and sediment delivery different from straight channel .