吉林大学学报(理学版)

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圆管中幂律流体非稳态流控制方程的一种近似解法

刘日成1, 吕显瑞2, 刘涛3   

  1. 1. 东北石油大学 数学与统计学院, 黑龙江 大庆 163318; 2. 吉林大学 数学学院, 长春 130012;3. 中国石油大学(北京) 地球物理与信息工程学院, 北京 102249
  • 收稿日期:2014-07-07 出版日期:2015-01-26 发布日期:2015-01-19
  • 通讯作者: 刘涛 E-mail:liutao_chn@126.com

Approximation Solution of Control Equation forUnstable Pipe Flow of PowerLaw Fluid

LIU Richeng1, LV Xianrui2, LIU Tao3   

  1. 1. School of Mathematics and Statistics, Northeast Petroleum University, Daqing 163318, Heilongjiang Province, China; 2. College of Mathematics, Jilin University, Changchun 130012, China;3. College of Geophysics and Information Engineering, China University of Petroleum (Beijing), Beijing 102249, China
  • Received:2014-07-07 Online:2015-01-26 Published:2015-01-19
  • Contact: LIU Tao E-mail:liutao_chn@126.com

摘要:

利用线性化平均方法和Laplace变换, 将非牛顿流体非稳态管流问题中一个不可用解析方法求解的二阶变系数偏微分方程转化为可解的近似常微分方程, 并以积分的形式给出了原方程的近似解析解.

关键词: Bessel函数, 近似解, 幂律流体, 非稳态管流

Abstract:

Using the linearization method and Laplace transform, we converted the two order variable coefficient partial differential equations unsolved with analysis into solvable ones and gave, in the form of integration, the approximate solution of original equations.

Key words:  Bessel function, approximation solution, powerlaw fluid, unstable pipe flow

中图分类号: 

  • O373