Steady-state CFD application using Converge?

s.chen8 · November 9, 2023, 09:50

Hi All,

I wonder whether it is appropriate to use Converge for Steady-state condition. My version is V3.0. I notice that V3.0 has added 'SIMPLE' as steady-state NS solver.

After some quick talk with other experienced users, V2.3 seems to intend to overpredict flow condition with PISO solver. I am not sure whether the same issue may occur in V3.0 or 3.1.

You are more than welcome to share any related experience about this topic.

alexzhangyu · November 13, 2023, 12:24

Hi,

This is Yu Zhang from CONVERGE support, as you have already found out, there are a lot of improvements for the steady state solver since v2.3, e.g. now we have the "Under-Relaxation-Based Steady-State Solver" for v3.2. So I would recommend you use our newer version (v3.0, v3.1 or v3.2) for your own application. In the meanwhile, if you want to know more details about the validations we have done for the steady state solver, please reach out to us with support@convergecfd.com (US), supportEU@convergecfd.com (EU) or support.in@convergecfd.com if you want to know more details.

Hope it helps.

s.chen8 · November 14, 2023, 21:18

Thank you Yu.

Quote:

Originally Posted by alexzhangyu

Hi,

This is Yu Zhang from CONVERGE support, as you have already found out, there are a lot of improvements for the steady state solver since v2.3, e.g. now we have the "Under-Relaxation-Based Steady-State Solver" for v3.2. So I would recommend you use our newer version (v3.0, v3.1 or v3.2) for your own application. In the meanwhile, if you want to know more details about the validations we have done for the steady state solver, please reach out to us with support@convergecfd.com (US), supportEU@convergecfd.com (EU) or support.in@convergecfd.com if you want to know more details.

Hope it helps.

November 9, 2023, 09:50	Steady-state CFD application using Converge?	#1
s.chen8 Member shanghua chen Join Date: May 2018 Posts: 30 Rep Power: 8	Hi All, I wonder whether it is appropriate to use Converge for Steady-state condition. My version is V3.0. I notice that V3.0 has added 'SIMPLE' as steady-state NS solver. After some quick talk with other experienced users, V2.3 seems to intend to overpredict flow condition with PISO solver. I am not sure whether the same issue may occur in V3.0 or 3.1. You are more than welcome to share any related experience about this topic.

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November 13, 2023, 12:24		#2
alexzhangyu New Member Yu Zhang Join Date: Oct 2021 Location: Madison Posts: 15 Rep Power: 5	Hi, This is Yu Zhang from CONVERGE support, as you have already found out, there are a lot of improvements for the steady state solver since v2.3, e.g. now we have the "Under-Relaxation-Based Steady-State Solver" for v3.2. So I would recommend you use our newer version (v3.0, v3.1 or v3.2) for your own application. In the meanwhile, if you want to know more details about the validations we have done for the steady state solver, please reach out to us with support@convergecfd.com (US), supportEU@convergecfd.com (EU) or support.in@convergecfd.com if you want to know more details. Hope it helps.