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Search: Posts Made By: JoshuaB
Forum: CFX February 25, 2019, 09:31
Replies: 8
Views: 513
Posted By JoshuaB
So if I understand you and "Opaque" correctly,...

So if I understand you and "Opaque" correctly, refining the mesh and increasing the time pseudo-timestep will not work against each other. That is the mesh will solve with the accuracy of a refined...
Forum: CFX February 22, 2019, 14:28
Replies: 8
Views: 513
Posted By JoshuaB
Thanks. So I guess in order to see if a steady...

Thanks. So I guess in order to see if a steady state solution exists I need to try both increasing and decreasing the time step.

I think I understand the the decreasing the time step. My...
Forum: CFX February 22, 2019, 11:48
Replies: 8
Views: 513
Posted By JoshuaB
From what I understand, in CFX, in a Steady State...

From what I understand, in CFX, in a Steady State solution increasing the timestep can have the affect of numerically diffusing the physics across more cells. Thus creating a smoother answer. ...
Forum: CFX February 22, 2019, 09:57
Replies: 8
Views: 513
Posted By JoshuaB
Mesh Refinement vs Residual/Convergence in Turbulence

I was hoping someone can help me get insight into the issue of mesh-refinement vs. convergence issues.

Firstly my setup:
I have a cylinder inside a cylinder. The outer tube has two openings...
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