河道水流泥沙运动一维、二维模型嵌套及交界面连接问题

Problems of the Linking of Interface and the Nesting of One-and Two-dimen-sional Mathematical Models for River Flow and Sediment Motion

本文导得了河道水流泥沙运动一维、二维模型交界面连接的一般条件,对交界面上水流阻力、悬移质挟沙力、推移质输沙率、河床变形及床沙级配的一维、二维模型不匹配问题进行了合理处理,建立了河道水流泥沙运动一维、二维嵌套数学模型。

The general linking conditions of interface between one-and two-dimensional models of river flow and sediment motion are odtainod in this paper. Rational measures are adopted (?) deal with the mismatch problems of one-and two-dimensional flow resistance, suspended load transport capacity, bedload transport rate, river bed deformation and bed material gradation. A one-and two-dimensional nesting mathematical model of river flow and sediment motion is also established.