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#1 |
Member
Yuva
Join Date: Oct 2015
Location: Korea Rep of
Posts: 33
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Dear CFD community
I want to simulate the flow inside a Radial turbine but an Inviscid one, How can I change the option in CFX to run an Inviscid flow simulation ? Thank you for your help |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,816
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CFX cannot run with zero viscosity. But you can define a fluid with such a low viscosity that it is in effect inviscid. Try reducing the viscosity of air (I assume it is air in your turbine) by a factor of 1000. If it diverges then try reducing by a factor of 100.
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#3 |
Senior Member
Join Date: Jun 2009
Posts: 1,850
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In addition to Glenn's suggestion, adding Free Slip Walls will also make it more consistent with an inviscid model
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#4 |
Member
Yuva
Join Date: Oct 2015
Location: Korea Rep of
Posts: 33
Rep Power: 10 ![]() |
Thank you for your answer
What about the Turbulence Model for an Inviscid flow ? and the Turbulence option for an Inlet Boundary Condition ? Kind Regards |
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#5 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,816
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Use a laminar flow model. There is no need to model the turbulence equations when they don't do anything.
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