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Convergence for reactive flow
Posted 02.04.2010, 22:36 GMT-4 0 Replies
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Hi
I have convergence problem for a reactor/heat exchanger system. The system consists of two channels divided by a wall. on one side of the wall reaction takes place in a catalytic film attached to te wall by the reactive flow, on the other side of the wall we have the cooling flow . I had to increase the catalytic film size as a subdomain in the settings because it could not converge. Now I get this error " residual error is greater than the tolerance "
I tried different mesh sizes and solvers . Pardiso get very close but still can not converge. any idea ??
Boundary condition
I have mass balance and energy balance ( diffusion ,convection - conduction ,convection ) with heat of reaction as a flux on one boundary this maybe a source of problem ! I have continuity boundary condition except for the catalyst surface which has a flux discontinuity.
I have attached a picture of the problem
Attachments:
Hello Alireza Naseri
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