中文摘要：

目前，对于流动减阻的相关研究和应用越来越多，许多有效的流动减阻方法得到了广泛的应用。对于这些方法的减阻机理，一般认为是通过增加粘性底层的厚度实现减阻的。其中，高聚合物添加剂减阻的方法在石油输运、消防及船舶等众多领域广泛应用，效果比较显著，在机理上有“粘弹说”、“应力各向异性说”等理论研究。然而，目前关于流动减阻机理的研究还不是十分成熟，需要进一步进行研究。

英文摘要：

＂Drag Reduction＂ is a hotspot research of the hydrodynamics with more and more research work and applications. Many drage reduction methods are used widely, and the mechanism research of these methods are also developing. Generally speaking, the thickening of the viscous sublayer is the main academic reason. In all the methods, Polymer additive is an effective method, widely applying in the area such as petroleum transportation, fire protection and shipping. The mechanism research of such a remarkable method has developed ＂Viscoelastic theory＂, ＂Stress anisotropic theory＂ and so on. But the research work of the drag reduction is not so mature, need more further development.