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Forum: CFX

July 28, 2012, 07:52

Replies: 11

Problem with energy imbalance

Views: 4,033

Posted By ghorrocks

The FAQ I linked to explains the fluctuations -...

The FAQ I linked to explains the fluctuations - either some issue is stopping tighter convergence, or the flow is transient and the steady state run cannot converge becuase it is not appropriate. If...

Forum: CFX

July 26, 2012, 07:38

Replies: 11

Problem with energy imbalance

Views: 4,033

Posted By ghorrocks

If you are not getting the heat residuals down...

If you are not getting the heat residuals down and the imbalances are fluctuating then you have too much solid acceleration. You should reduce it. You probably have other convergence problems as...

Forum: CFX

July 25, 2012, 18:24

Replies: 11

Problem with energy imbalance

Views: 4,033

Posted By ghorrocks

This is a common problem for CHT simulations. The...

This is a common problem for CHT simulations. The problem is the thermal time scale is massively slow compared to the fluid time scale, so once the fluid flow is converged the thermal field still has...

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