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SOLUTION OF TRANSIENT PROBLEMS WITH STEEP GRADIENTS - NOVEL FRONT-TRACKING STRATEGY

DSpace at IIT Bombay

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Title SOLUTION OF TRANSIENT PROBLEMS WITH STEEP GRADIENTS - NOVEL FRONT-TRACKING STRATEGY
 
Creator KIIL, S
BHATIA, SK
DAMJOHANSEN, K
 
Subject gas-solid reactions
collocation method
perturbation analysis
moving boundary
shrinking core
model
diffusion
equations
 
Description A finite element collocation method is formulated for heat and mass transfer problems involving a steep moving profile of the dependent variable. An efficient, parametrically convergent front-tracking procedure is developed based on a balance on a moving front, and the technique is applied and tested for the case of a gas-solid non-catalytic reaction in a porous solid at high Thiele modulus. Accurate and convergent steep profiles are obtained here for Thiele modulus larger than 50 for the case of slab as well as spherical geometry and found to match the analytical solution when it exists (such as for slab geometry).
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-26T13:42:53Z
2011-12-26T12:57:28Z
2011-12-27T05:41:41Z
2011-08-26T13:42:53Z
2011-12-26T12:57:28Z
2011-12-27T05:41:41Z
1995
 
Type Article
 
Identifier CHEMICAL ENGINEERING SCIENCE, 50(17), 2793-2799
0009-2509
http://dx.doi.org/10.1016/0009-2509(95)00130-W
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11328
http://hdl.handle.net/10054/11328
 
Language en