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Active Contributor
jorge.lopera
Posts: 43
Registered: ‎09-21-2006

CENTRIFUGAL PUMP SAMPLE

621 Views, 2 Replies
09-03-2012 01:40 PM

Hello,

 

I am learning with the tutorials that are installed with SIM CFD 2013.

file:///C:/Program%20Files/Autodesk/Simulation%20CFD%202013/Help/SimCFD-Help_Left.htm#CSHID=1200|Sta...

 

I have followed each step, of the exercise, but when I run the model, appears message about mesh problems.

 

I tried everything, but nothing, at the help documentation explains that for this kind of model, you must:

 

The following considerations apply for both mesh strategies:

  • A fine enough mesh density is critical to a successful analysis. Because of the high flow gradients in a rotating device, it is essential that the mesh be fine enough to resolve them.
  • Refine the mesh locally on vane leading edges and volute tongues to ensure the curvature is adequately represented. These are typically critical areas and are where large pressure and flow gradients occur.
  • Check the mesh distribution on the suction side of each passage. An adverse pressure gradient often occurs in this region, and it is essential that enough mesh exist to adequately resolve the flow gradients.
  • Ensure that nodal aspect ratios within the rotation region are below 100. To check aspect ratio, enable Stream Function in the Result quantities dialog, and run 0 iterations. Create an iso surface to visualize Nodal Aspect Ratio

 

I don´t know what to do, the tutorial explains about the mesh consideration for the rotor solid, but I think that I am making something wrong.

 

any idea?

 

 

 

 

 

 

Technical Specialist
Nexsys de Colombia
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Royce_adsk
Posts: 645
Registered: ‎08-24-2011

Re: CENTRIFUGAL PUMP SAMPLE

09-04-2012 06:47 AM in reply to: jorge.lopera

Hi!

 

Could you attach your support share file?  This would be a good exercise to share with everyone in the forum.

 

Thanks,

Royce



Royce Abel
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Active Contributor
jorge.lopera
Posts: 43
Registered: ‎09-21-2006

Re: CENTRIFUGAL PUMP SAMPLE

09-04-2012 08:15 PM in reply to: Royce_adsk

I have tried, but the share file sizes like 3MB, and the limit at forum it's 1.5MB.

 

 

regards,

Technical Specialist
Nexsys de Colombia
Please use plain text.