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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX November 13, 2017, 17:12

Replies: 27 Question about heat transfer simulation convergence Views: 15,277 Posted By ghorrocks Sadly, I don't think an FAQ covers this one :( ... Sadly, I don't think an FAQ covers this one :( I agree with Mr CFD's comments: First check for numerical problems (mesh, models), and if they look OK check for transient flow starting up, such as...

Forum: CFX May 22, 2013, 05:55

Replies: 27 Question about heat transfer simulation convergence Views: 15,277 Posted By ghorrocks FAQ:... 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

Forum: CFX May 14, 2013, 08:07

Replies: 27 Question about heat transfer simulation convergence Views: 15,277 Posted By ghorrocks No, I mean using the global imbalances as an... No, I mean using the global imbalances as an additional convergence critereon. This is described in the documentation. It does not mean RMS T-Energy or H-Energy, it is a global imbalance.

Forum: CFX May 10, 2013, 23:47

Replies: 27 Question about heat transfer simulation convergence Views: 15,277 Posted By ghorrocks Yes, the solid time scale factor is only... Yes, the solid time scale factor is only applicable to steady state runs. In transient runs you have to model it with the physical time step the same in both regions. Shoushou: I mean set a...

Forum: CFX May 9, 2013, 18:11

Replies: 27 Question about heat transfer simulation convergence Views: 15,277 Posted By ghorrocks CHT simulations commonly have this problem where... CHT simulations commonly have this problem where the residuals are well converged but the imbalances are not and converge quite slowly. The problem is caused by the different time scales in the solid...

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