I am trying to model low grade coal combustion in a CFB. Its a 3D riser of 4 m length. I am using FLUENT as a CFD solver, however, I am encountering some convergence problems. Can we model the same problem in any other CFD solver more easily?
It depends on the nature of the problem itself. Sometimes it is not an easy task to determine the conditions of divergence. According to my little experience, defining, implementing and mishandling of boundary conditions are one of main sources of divergence in simulation.
It depends on the nature of the problem itself. Sometimes it is not an easy task to determine the conditions of divergence. According to my little experience, defining, implementing and mishandling of boundary conditions are one of main sources of divergence in simulation.
It depends upon:
1. which kind of model dpm or eulerian model you are using.
2. While how many sub models for reactions involved in the process you are considering in your study.?
It is very easy in fluent. If you start doing it you will be able to do easily.
A CFB includes combustion, gasification and DPM models. Try to reproduce the results of a paper. It will be easier.
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