Journal of East China Normal University(Natural Science) ›› 2020, Vol. 2020 ›› Issue (2): 15-22.doi: 10.3969/j.issn.1000-5641.201911008

• Mathematics • Previous Articles     Next Articles

Lie group analysis and exact solutions for a class of population balance equations

LIN Fubiao, ZHANG Qianhong   

  1. School of Mathematics and Statistics, Guizhou University of Finance and Economics, Guiyang 550025, China
  • Received:2019-02-03 Published:2020-03-16

Abstract: In this paper, exact solutions for a class of population balance equations were investigated. The population balance equation was first transformed to a partial differential equation; symmetries of the partial differential equation were then obtained by use of the classical Lie group analysis method. In addition, the paper presents symmetries, optimal system of subalgebras, reduced ordinary differential integral equations, and group invariant solutions of the population balance equation. Exact solutions of the reduced ordinary differential integral equations were subsequently found using trial functions. Finally, exact solutions for a class of population balance equations are derived.

Key words: population balance equation, Lie group analysis method, method of trial function, group invariant solution, exact solution

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