A Computational Grid Optimization Drawing Method for Two-dimensional Water Quality Numerical Simulation Model of Rivers

Abstract

The invention discloses a method for local optimization and density increased drawing of river two-dimensional water quality numerical simulation model computational grids. Through the method for local optimization and density increased drawing of grids, local optimization and density increasing of special computation positions of two-dimensional regular fine grids according to any proportion canbe realized, to satisfy that in actual numerical simulation calculation process, grids in different fine degrees are needed for different computational positions and different computation tasks, and improve computation efficiency and reduce hardware cost. Based on existing water quality model numerical simulation grid drawing methods and tools, simple and efficient two-dimensional water quality model computational grid optimization control is realized, and the method provides data support for numerical computation which is based on regular grids.

Description

technical field [0001] The invention belongs to the field of fluid mechanics and environmental numerical simulation, and relates to a calculation grid optimization drawing method for a two-dimensional water quality numerical model of a river. Numerical simulation calculation of river water quality in the basin. Background technique [0002] The grid is the premise of discretizing the whole unit and performing finite element numerical simulation calculation. With the continuous development of fluid mechanics calculations based on finite element numerical simulation calculations and 2D and 3D hydrodynamic water quality mathematical models, and the continuous improvement of environmental management requirements for the accuracy of water quality numerical simulation calculations, how to draw high-precision two-dimensional regular grids , and based on this set of grids, it meets the needs of grids with different degrees of fineness for different calculation locations and differe...

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Problems solved by technology

[0005] Aiming at the needs of different calculation positions and different calculation tasks that require grids of different degrees of fineness, as well as the problems of improving the efficiency of numerical simulation calculations and reducing hardware costs, the present invention proposes a calculation grid optimization drawing method for two-dimensional water quality numerical models of rivers

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