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-   -   AMI - Propeller Tutorial diverging (https://www.cfd-online.com/Forums/openfoam-solving/122712-ami-propeller-tutorial-diverging.html)

kingmaker August 26, 2013 09:37
AMI - Propeller Tutorial diverging
 
Hello people

I am trying to learn how to implement AMI with the help of pimpleDyMFoam tutorial of propeller. when I start the simulation using Allrun command the simulation blows up after ~35 iterations. the continuity suddenly becomes from 0.1 to 1e+3 and then the simulation diverges. I have not done any changes to the tutorial provided with the distribution (I am using OF 2.1.1).
I am quite confused why that is happening. Any suggestions what should be done ?

Also I want to implement AMI with MRFSimpleFoam. Do we need constant/dynamicMeshDict ... ? Also what else will be the major changes when compared to the tutorial of propeller. Because tutorial is a transient simulation with pimpleDyMFoam where as I want to do steady state simulation.

Any help/suggestions will be greatly helpful and will be appreciated. :o

Thanks in Advance.

kingmaker August 27, 2013 02:31
Any One .. ??
 
Hello Any one ... ?? Please ... suggest something ... !!

bmaldi November 4, 2016 02:57
Quote:
Originally Posted by kingmaker (Post 448115)
Hello people

I am trying to learn how to implement AMI with the help of pimpleDyMFoam tutorial of propeller. when I start the simulation using Allrun command the simulation blows up after ~35 iterations. the continuity suddenly becomes from 0.1 to 1e+3 and then the simulation diverges. I have not done any changes to the tutorial provided with the distribution (I am using OF 2.1.1).
I am quite confused why that is happening. Any suggestions what should be done ?

Also I want to implement AMI with MRFSimpleFoam. Do we need constant/dynamicMeshDict ... ? Also what else will be the major changes when compared to the tutorial of propeller. Because tutorial is a transient simulation with pimpleDyMFoam where as I want to do steady state simulation.

Any help/suggestions will be greatly helpful and will be appreciated. :o

Thanks in Advance.
Hello,.
In MRF we don't use the dynamicsMeshDict, but we need MRFProperties, it's different scripts. then you have to change some scripts.


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