涡管排沙研究进展

Developments in the Study of Vortex Tube Sediment Extractors

进入涡管槽口的挟沙水流会形成强有力的螺旋流沿涡管流动，能有效地排除底部推移质泥沙。涡管排沙可解决渠道引水的泥沙问题或排除水库泥沙，成本低，效率高。本文介绍了国内外在分析涡管排沙机理、重要影响因素、排沙效率计算及相关设计等方面的进展。

The flow with sediment trapped by the slit of the vortex tube can form vortex inside the tube and exclude efficiently the coarse sediment near the bed layer in front of the tube.Vortex tube sediment extractors could be a powerful device to deal with sedimentation problems in diversion channels and extract reservoir sediment at a low cost and high efficiency.The developments in the studies on the mechanism,some important factors,the evaluation of the trapping coefficient of the vortex tube,the design procedure concerned and so on have been introduced in this paper.