IMA Journal of Mathematical Control and Information Advance Access originally published online on June 30, 2006
IMA Journal of Mathematical Control and Information 2007 24(2):163-175; doi:10.1093/imamci/dnl013
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Asymptotic behaviour of state trajectories for a class of tubular reactor non-linear models
Laboratoire d'Ingénierie Mathématique (LINMA), Département de Mathématique et Informatique, Faculté des Sciences, BP 20, El Jadida, Morocco
** Email: bouchraylaj{at}yahoo.fr
*** Email: achhab{at}menara.ma
**** Corresponding author. Email: laabissi{at}ucd.ac.ma
| Abstract |
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We prove the global existence of the state trajectories for a class of non-linear systems arising from convection-dispersion-reaction processes. It is also shown that there is at least one steady state in the set of physically feasible states for such systems. The uniqueness and the stability analysis of this steady-state solution are discussed. Our approach is based on the analysis of a non-linear set of partial differential equations, using the upper and lower solutions, dissipativity properties, a subtangential condition and the positivity of the related C0-semigroup.
Keywords: tubular reactor; non-linear distributed parameter systems; equilibrium profile; positive C0-semigroup; compact semigroup; dissipativity.
Received on 9 September 2005. Revised on 21 February 2006. Accepted on 13 March 2006.