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mixture flow error
Posted 2012年7月9日 GMT-4 11:03 Computational Fluid Dynamics (CFD), Materials Version 4.2a 3 Replies
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I'm trying to model a simple stationary mixture laminar flow, however I counter this error
Failed to find a solution.
Singular matrix.
There are 4567 void equations (empty rows in matrix) for the variable mod1.phid
at coordinates: (0.00699301,0), (0.013986,0), (0.00699301,0.00122764), (0.020979,0), (0.00699301,0.25), ...
Returned solution is not converged.
In this project we are aiming to observe the fluidize bed.
I've tried to change every bit of my material but the result was the same.
mean while I'm attaching the whole project
I will be glad if you could help me
best regards
Babak Alizadeh
Attachments:
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i have the same problem
:(
is there anybody can help me to solve this problem ????
thanks
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I solved the first problem by giving the initial condition for phid, since my project is in 2d it gives me this problem while it's converging
Failed to find a solution.
Maximum number of Newton iterations reached.
Returned solution is not converged.
what should I do?
It is emergency please help me
Best regard
Babak Alizadeh
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I have the same problem the other problem is how i can change the of determine the viscosity, while the software always using the Krieger expression to determine it. how i can use another equation to calculate the viscosity.
thanks