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Research on Visualization in Flood Flow Numerical Simulation

Author: ChengWenLong
Tutor: YangGuoLu
School: Wuhan University
Course: Hydraulics and River Dynamics
Keywords: Visualization System Flood Mathematical model Before and after treatment technology Hybrid Programming
CLC: TV122
Type: Master's thesis
Year: 2005
Downloads: 358
Quote: 4
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Abstract


Through the development of scientific visualization software package to achieve the numerical simulation of flood routing for the visualization of the development of flood control engineering disciplines have important significance. Based on the visualization before and after treatment technology research , the use of mixed-language programming, the successful implementation of flood routing simulation visualization of computer simulation , graphics rendering and interface design. Paper is divided into six chapters . Chapter 1 provides an overview of visualization in scientific computing , describes the characteristics of domestic and visualization software and developments , the last of the contents of this paper are described . Chapter 2 introduces the visualization system involves pre-and post processing techniques , focusing on the Delaunay triangular mesh generation method , contour drawing and Lagrange flow generation . According to this research method to generate the triangle mesh can be well adapted natural river complex terrain , and you can easily achieve grid refinement , to meet the various requirements of the actual project ; drawing contours can transform the image by color simulation calculations flood water level changes ; Eular through improved data processing algorithms for the flow field , numerical simulation can be boring data in a way to visually dynamic image display. Chapter 3 discusses in depth mixed Fortran and VB.NET programming techniques in a Fortran program to calculate the dynamic-link library (DLL) integrated approach to the visualization module, and then through VB.NET development of graphical user interfaces and user interaction. Chapter 4 establishes a two-dimensional flow model . While the numerical calculation of several key issues put forward the corresponding processing methods, such as the roughness of the identification and treatment of moving boundary river . Chapter 5 Flood numerical simulation visualization system for a full range of presentations, including the framework of the system , the system interacts with the user interface and system functions are implemented will be described in detail . Chapter 6 Conclusion and Outlook . This paper summarizes the work carried out and on the future work prospects .

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CLC: > Industrial Technology > Hydraulic Engineering > The basic science of water resources project > Engineering and hydrology > Flood
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