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Forum: CFX September 3, 2018, 00:10
Replies: 16
Views: 12,165
Posted By ghorrocks
If you are considering changing turbulence models...

If you are considering changing turbulence models you really should know what the models which are already there have in them. The k-e turbulence model works by estimating the turbulent viscosity and...
Forum: CFX September 2, 2018, 18:55
Replies: 16
Views: 12,165
Posted By ghorrocks
The k-e turbulence model already implements a...

The k-e turbulence model already implements a turbulent viscosity. Or do you want to modify the k-e turbulence model? If so, why?

Before you change the turbulence model, have you done all the...
Forum: CFX July 15, 2012, 08:20
Replies: 16
Views: 12,165
Posted By ghorrocks
There are a few methods to track free surfaces...

There are a few methods to track free surfaces and VOF is one of them. CFX does not actually implement VOF as it is usually defined, CFX uses a volume fraction equation with an advection scheme...
Forum: CFX July 14, 2012, 06:05
Replies: 16
Views: 12,165
Posted By ghorrocks
CFX has a lot more multiphase options than...

CFX has a lot more multiphase options than homogeneous and inhomogeneous. That merely refers to whether different phases share a variable field or not.

I do not understand your question to VOF and...
Forum: CFX July 14, 2012, 05:29
Replies: 16
Views: 12,165
Posted By ghorrocks
If all you care about is the final steady state...

If all you care about is the final steady state solution (or final pseudo-steady if transient and it is flapping about) then a non-converged initial condition will not matter. As long as it is close...
Forum: CFX July 12, 2012, 08:15
Replies: 16
Views: 12,165
Posted By ghorrocks
Sounds like an FAQ:...

Sounds like an FAQ: http://www.cfd-online.com/Wiki/Ansys_FAQ#My_steady_state_solution_converges_for_a_while_but_stops_converging_before_reaching_my_convergence_criteria
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