Computational Study Of Traveling Wave Solutions Of Isothermal Chemical Systems

Keywords

existence; Isothermal chemical systems; microbial growth in a flow reactor; minimum speed; multiple peak solutions; non-existence; traveling wave

Abstract

This article studies propagating traveling waves in a class of reaction-diffusion systems which model isothermal autocatalytic chemical reactions as well as microbial growth and competition in a flow reactor. In the context of isothermal autocatalytic systems, two different cases will be studied. The first is autocatalytic chemical reaction of order m without decay. The second is chemical reaction of order m with a decay of order n, where m and n are positive integers and m>n≥1. A typical system in autocatalysis is A+2B→3B and B→C involving two chemical species, a reactant A and an auto-catalyst B and C an inert chemical species. The numerical computation gives more accurate estimates on minimum speed of traveling waves for autocatalytic reaction without decay, providing useful insight in the study of stability of traveling waves. For autocatalytic reaction of order m = 2 with linear decay n = 1, which has a particular important role in chemical waves, it is shown numerically that there exist multiple traveling waves with 1, 2 and 3 peaks with certain choices of parameters.

Publication Date

5-1-2016

Publication Title

Communications in Computational Physics

Volume

19

Issue

5

Number of Pages

1461-1472

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.4208/cicp.scpde14.38s

Socpus ID

84969181204 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84969181204

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