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The development of a simulation model of pipeline network systems with check valve.

机译：带止回阀的管网系统仿真模型的开发。

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摘要

The objective of this thesis is to design and implement a software package to model and simulate pipeline network systems with check valves. The application package is written under the window's environment to provide the hydraulic engineer a user friendly interface for ease of simulation and analysis without requiring to write code.;Discussion of the phenomenon of hydraulic transients, derivation of the differential equations, comparison of different kinds of analysis methods, and investigation of the method of characteristics solution and basic boundary conditions are all established. The check valve dynamic equation is investigated for the analysis of pipeline transients, and formulae for flow torque acting on the valve discs are derived by introducing the orifice sequence model. Dynamic behavior of pumps is considered during the pipeline transients, and the analysis of this behavior combines the method of characteristics with check valve dynamics, pump characteristic and pump boundary conditions both for pump failure and pump start up. Numerical solutions to pipeline transients, check valve dynamics, and pump characteristic are established. Finally, the implementation into a working simulation program of a dynamic model for pipeline network systems with check valves is described, and a user guide for the software HydroAnalysis and HydroGraphic is presented.
机译：本文的目的是设计和实现用于对带有止回阀的管道网络系统进行建模和仿真的软件包。该应用程序包是在窗口环境下编写的，为液压工程师提供了一个用户友好的界面，无需编写代码即可轻松进行仿真和分析。讨论液压瞬态现象，微分方程的推导，不同种类的比较建立分析方法，并研究特征解方法和基本边界条件。研究了止回阀动力学方程，以分析管道瞬变，并通过引入节流孔序列模型，得出了作用在阀盘上的流动扭矩的公式。在管道瞬变过程中考虑了泵的动态行为，对此行为的分析将特性方法与止回阀动态特性，泵特性和泵边界条件（包括泵故障和泵启动）结合在一起。建立了管道瞬态，止回阀动力学和泵特性的数值解。最后，描述了带有止回阀的管网系统动态模型在工作仿真程序中的实现，并给出了HydroAnalysis和HydroGraphic软件的用户指南。

著录项

  • 作者

    Wen, Tianhe.;

  • 作者单位

    Concordia University (Canada).;

  • 授予单位 Concordia University (Canada).;
  • 学科 Engineering Mechanical.
  • 学位 M.A.Sc.
  • 年度 2001
  • 页码 194 p.
  • 总页数 194
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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