计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (18): 233-236.DOI: 10.3778/j.issn.1002-8331.2010.18.071

• 工程与应用 • 上一篇    下一篇

渗流场流线构造方法研究

李海生1,蔡 强1,刘曰武2   

  1. 1.北京工商大学 计算机与信息工程学院,北京 100048
    2.中国科学院 力学研究所 工程科学部,北京 100080

  • 收稿日期:2009-06-29 修回日期:2009-08-06 出版日期:2010-06-21 发布日期:2010-06-21
  • 通讯作者: 李海生

Research on generating streamlines in seepage flow field

LI Hai-sheng1,CAI Qiang1,LIU Yue-wu2   

  1. 1.College of Computer and Information Engineering,Beijing Technology and Business University,Beijing 100048,China
    2.Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China

  • Received:2009-06-29 Revised:2009-08-06 Online:2010-06-21 Published:2010-06-21
  • Contact: LI Hai-sheng

摘要: 流线是分析渗流场流体流动特性的一个非常重要的工具,其构造方法的研究已受到油藏工程师们的普遍关注。给出了基于约束Delaunay三角网格的等值线和流线生成算法。提出了一种新的计算渗流场压力梯度的方法,借助于“翼边”数据结构,设计了“指南针”算法加速流线的跟踪过程。实例表明,算法具有良好的时空效率,结果能够较为直观地反映出油藏流体在注采井间的运动轨迹。

关键词: 渗流场, 流线, 压力梯度, Delaunay三角网格

Abstract: Streamline is an important tool used to analyze and visualize the flow through porous media,such as oil flow and underwater flow.The streamline construction algorithm has been concerned widely by reservoir engineers.Algorithms of generating streamlines based on constrained Delaunay triangulation are presented in this paper.A novel pressure gradients calculation method is also put forward.In addition,“compass” algorithm based on “wing-edge” data structure is adopted to fasten the streamline integration process.Examples show the algorithm has good time and space efficiency.The generated streamlines can visual display the reservoir fluid’s movement tracks between the producers and injectors.

Key words: seepage flow field, streamline, pressure gradient, Delaunay triangulation

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