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An Integral Equation Formulation for Solving Reaction-Diffusion-Convection Boundary-Value Problems
1Universidad Autonoma Metropolitana – Iztapalapa, firstname.lastname@example.org
2Universidad Autonoma Metropolitana – Cuajimalpa, email@example.com
3Universidad Autonoma Metropolitana – Iztapalapa, firstname.lastname@example.org
4Universidad Autonoma Metropolitana – Iztapalapa, email@example.com
Citation Information: International Journal of Chemical Reactor Engineering. Volume 6, Issue 1, Pages –, ISSN (Online) 1542-6580, DOI: 10.2202/1542-6580.1735, July 2008
- Published Online:
Many interesting problems that include convective transport arise in chemical reactor engineering (for example, tubular reactors). To solve these boundary-value problems, finite-difference schemes with a type of discretization of the convection term have been traditionally used. Some controversy about the discretization form of the convection term has arisen because of the different possibilities, including backward, forward and central discretizations. To overcome this problem, the usage of Green's function formulations for the numerical solution of typical chemical engineering problems with both linear and nonlinear kinetics, diffusion and convection phenomena, is presented. A distinctive feature of the proposed scheme is that boundary conditions are exactly incorporated. The results show that the integral formulation is, in general, superior in accuracy to the different finite-differences schemes. That is, more accurate calculations of the performance factor are obtained in terms of less mesh points and computer time.