西南石油大学学报(自然科学版) ›› 1991, Vol. 13 ›› Issue (4): 124-131.DOI: 10.3863/j.issn.1000-2634.1991.04.016

• 论文 • 上一篇    下一篇

复杂枝状管网内不稳定流动数学模型的广义解

吴小庆 江茂泽 曾自强   

  1. 1 基础部;2 油建系
  • 收稿日期:1990-12-17 修回日期:1900-01-01 出版日期:1991-11-20 发布日期:1991-11-20

WIDE-SENSE SOLUTION OF TRANSIENT FLOW MATHEMATICAL MODEL OF COMPLEX BRANCH-LIKE PIPELINE NETWORK

Wu Xiao-qing Jiang Mao-ze Zeng Zi-qiang
  

  1. 1 Dept. of Basic Courses;2 Dept; of offshore oil Engineering)
  • Received:1990-12-17 Revised:1900-01-01 Online:1991-11-20 Published:1991-11-20

摘要:

考虑复杂枝状管网系统內不稳定流动,建立起压力分布的偏微分方程组的初边值问题的数学模型,利用线性算子半群方法得到了问题解存在唯一的结论,并利用算子级数法得到了问題的广义解。

关键词: 管网设计, 数学模型, 不稳定流动, 偏微分方程组, 广义解

Abstract:

Considering the realistic transient flow in complex branch-like pipeline network, we have presented for the first time the mathematical model of initial-boundary value problem in the system of partial differential equations of pressure distribution. We have proved the solution of the initial-boundary value problem to be existent and unique by the semigroup theory of linear operators, and obtained the wide-sense solution by the operator series method.


Key words: Network design, Mathematical model, Transient flow, partial defferential equations, Wide-sense solution

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