澜沧江船舶航行阻力及通航水力指标研究  

Study on sailing resistance and navigable hydraulic parameters to rapids shoal of Lancang River

作　　者：童思陈[1] 许光祥[1] 邓明文[2] 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]云南省航务管理局,云南昆明650021

出　　处：《人民长江》2010年第2期67-72,共6页Yangtze River

基　　金：云南省科技计划项目(2006GG21)

摘　　要：采用螺旋桨推力与船舶航行阻力相平衡的原则,以兹万科夫水流阻力计算公式为基础,根据澜沧江实船静水航速试验资料,以船舶浸水面积与水流佛劳德数为典型参数,对原兹万科夫公式进行了修正。提出了适合于澜沧江代表船舶的水流阻力计算公式。结合坡降阻力计算,探讨了多种工况下的船舶推力和航行阻力的计算问题,提出了一系列急流滩消滩流速—比降组合。并建立了应用方便、结构简单合理的澜沧江通航水力指标,即船舶能自航上滩的最大流速—比降关系式,为澜沧江航道的规划、设计及整治提供了理论基础。Based on counterbalance principle of the propeller force to sailing resistance and Зиванков flOW resistance calculation method, according to results of prototype navigation testing in the static water area of the Lancang River, the original Зиванков calculation method is modified and the flow resistance calculation method adapted to typical ship sailing in the Laneang River is put forward. By associating with the gradient resistance calculation, the ship propulsive force and sailing resistance are calculated under multiple conditions and series of rapids abating relationship between flow velocity and gradient are proposed. Fi- nally, the navigable hydraulic parameters with simple and reasonable form to rapids shoal of the Lancang River, i. e, the relation- ship of the maximum flow velocity and gradient for self - propulsion ship sailing in rapid flow, are determined and the parameters are convenient to application.

关 键 词：航行阻力 急流滩 通航水力指标 澜沧江 

分 类 号：U61[交通运输工程—船舶及航道工程]