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Forum: Main CFD Forum

December 29, 2015, 16:06

Replies: 9

Grid convergence

Views: 1,847

Posted By cfdnoob

Agreed, I am using RANS as well, but 5 million...

Agreed, I am using RANS as well, but 5 million cells for just a volute is a lot

Forum: Main CFD Forum

December 29, 2015, 07:12

Replies: 9

Grid convergence

Views: 1,847

Posted By cfdnoob

I refined it with the relevance button in ansys...

I refined it with the relevance button in ansys mesh since there is no structured way of doing it with an unstructured mesh, why might i have a problem?

Forum: Main CFD Forum

December 28, 2015, 10:29

Replies: 9

Grid convergence

Views: 1,847

Posted By cfdnoob

You are absolutely right. However I only...

You are absolutely right.

However I only used a similar method with the richardson extrapolation (which determines my extrapolated solution)

Forum: Main CFD Forum

December 27, 2015, 10:59

Replies: 9

Grid convergence

Views: 1,847

Posted By cfdnoob

Grid convergence

Hi, I am performing a grid convergence study for a steady state simulation of an impeller and volute.

For this convergence study I used
http://www.cfd.com.au/cfd_conf09/PDFs/136ALI.pdf

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