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Search took 0.00 seconds. Search: Posts Made By: ghorrocks
Forum: CFX March 21, 2018, 06:30
Replies: 18
Views: 1,726
Posted By ghorrocks
I do not know the answers to your questions so...

I do not know the answers to your questions so cannot help. All I can suggest is to read the documentation carefully and if you can't work it try ANSYS training and support.
Forum: CFX July 28, 2016, 07:01
Replies: 18
Views: 1,726
Posted By ghorrocks
I have never used the non-reflecting BC in CFX....

I have never used the non-reflecting BC in CFX. It is a beta feature anyway so it is not fully supported or documented. So I can't help you there.

I can't help you with beamforming either. If you...
Forum: CFX July 25, 2016, 06:46
Replies: 18
Views: 1,726
Posted By ghorrocks
Non-reflecting BC: A simple way of doing this...

Non-reflecting BC: A simple way of doing this which does not always work is to deliberately grossly coarsen your mesh immediately at the boundary. The wave hits the coarse mesh and gets dissipated by...
Forum: CFX July 21, 2016, 18:37
Replies: 18
Views: 1,726
Posted By ghorrocks
If it needs to go smaller then you have to let...

If it needs to go smaller then you have to let it. Also remove your artificial restriction of a minimum timestep of 0.5 degrees and let it go as small as it needs. DES/LES models require very small...
Forum: CFX July 19, 2016, 19:47
Replies: 18
Views: 1,726
Posted By ghorrocks
You don't have to do the grid independence study...

You don't have to do the grid independence study on the full thing. Either cut out a section of the geometry or use a simpler analogy.

If it takes months to run then it is even more important to...
Forum: CFX July 19, 2016, 07:53
Replies: 18
Views: 1,726
Posted By ghorrocks
Then how will you know if you have sufficient...

Then how will you know if you have sufficient computing power to perform this type of simulation? If you do not have adequate computing power then it is better to know it cannot be done and not waste...
Forum: CFX July 18, 2016, 20:38
Replies: 18
Views: 1,726
Posted By ghorrocks
Mesh and time step sensitivity of DES/LES will be...

Mesh and time step sensitivity of DES/LES will be very different to RANS. You will have to redo it for a DES/LES simulation.

No, I recommend adaptive time steps homing in on 3-5 coeff loops per...
Forum: CFX July 18, 2016, 08:46
Replies: 18
Views: 1,726
Posted By ghorrocks
I will answer your questions which I think I...

I will answer your questions which I think I might be able to help with:

3) Then run a smaller time step and see if it makes a difference. It is best to establish these things yourself using your...
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