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Contributor
damien.bordet
Posts: 14
Registered: ‎11-04-2010

Error in CFD analysis

532 Views, 2 Replies
02-08-2011 08:40 AM

Hello,

 

I made a steady-state CFD analysis. The model is just the volume of air around a turbine.

I couldn't use a Tetrahedra and wedges (boundary layer) mesh. So I used a tetrahedra mesh.

I did'nt have any error in this analysis.

 

I wanted to realize a transient analysis so I just modified the analysis parameter but I have this error.

 

Do you have anay Idea?

 

Thanks.

 

 

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Employee
Joey.X
Posts: 259
Registered: ‎06-14-2010

Re: Error in CFD analysis

03-17-2011 06:15 AM in reply to: damien.bordet

Hi, Damien

 

From your attached log file, it can't judge the exact reason for the error.

Possible reason is incorrect boundary condition applied. please check following items or attach you archive model.

a. Simulation domain,  make sure solid parts were excluded

b. Boundary condition, such as velocity, pressure BCs, rotating BC has to be applied to real rotating surfaces only.

c. mesh. Without boundary mesh, the coarse tetrahedral mesh may block the flow in narrow clearance.

 

 

 

Jianhui Xie, Ph.D
Principal Engineer
MFG-Digital Simulation
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New Member
bobby.morris
Posts: 1
Registered: ‎10-24-2012

CFD volume mesh error

10-24-2012 01:45 PM in reply to: Joey.X

Hi,

 

I am running a natural ventilation analysis in Simulation 360 on a revit import. When I import the model from Revit I can generate a mesh from this, no problem. However, if I add an external volume from the CFD software to the model the volume mesh fails and cancels the analysis. Has anyone else run into this?

 

Thanks,

Bobby

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