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Method for analyzing shallow water flow using the two-dimensional river flow model with tensor-type eddy viscosity

机译:张量涡旋二维水流模型的浅水流分析方法

摘要

PURPOSE: The eddy viscosity coefficient having 4 directionalities in the horizontal 2D plane is introduced and 2D finite element model based on the tensor type eddy viscosity coefficient is applied. The complex flux structure is reconstructed accurately in the various flow conditions. CONSTITUTION: The eddy viscosity coefficient showing the turbulence formation grade to the direction which does not accord with the cartesian coordinate system and the eddy viscosity coefficient showing distance to the river bed, the roughness coefficient, and about turbulence generation to the x/y-direction at the cartesian coordinate system and the gravitational acceleration are inputted with the input unit to the main memory. A CPU applies the finite element method to input data and equations. The depth of water at the arbitrary time and location, and the longitudinal speed of a current and traverse flux are produced.
机译:目的:引入在水平2D平面上具有4个方向的涡流粘度系数,并基于张量型涡流粘度系数应用二维有限元模型。复杂的通量结构可以在各种流动条件下精确地重建。组成:涡流粘度系数显示了与笛卡尔坐标系不符的方向上的湍流形成梯度,涡流粘度系数显示了到河床的距离,粗糙度系数以及在x / y方向上的湍流产生直角坐标系中的坐标和重力加速度通过输入单元输入到主存储器。 CPU将有限元方法应用于输入数据和方程式。产生在任意时间和位置的水深,以及水流的纵向速度和横向通量。

著录项

  • 公开/公告号KR101106548B1

    专利类型

  • 公开/公告日2012-01-30

    原文格式PDF

  • 申请/专利权人

    申请/专利号KR20090129530

  • 发明设计人 서일원;송창근;

    申请日2009-12-23

  • 分类号G06F19;G06F17/13;

  • 国家 KR

  • 入库时间 2022-08-21 17:08:44

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