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problem in convergence

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Old   February 20, 2012, 01:15
Default problem in convergence
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Shashwat
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Dear friend

I am doing blood flow through stenosed artery. I consider the arterial wall as porous domain
wall has multiple layers which has different porosity and permeability

I have written permeabity and porosity as a function of r

it is steady state analysis. I am facing the convergence problem .I need your help

Thank you

Regards

Shashwat
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Old   February 20, 2012, 01:52
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Glenn Horrocks
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Use a much smaller timestep to start off, and possibly local time scale factor (set it to about 5). Run that for a while until it starts to converge, then switch back to physical time scale with a larger time step to convergence.

These are all standard tricks for getting convergence, read the documentaton on "Obtaining Convergence".
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