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June 12, 2006, 09:20 |
Euler equation
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#1 |
Guest
Posts: n/a
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Hello,
i would like to know whether it is possible to solve fluid flow problem with the help of Euler equation model (non-viscous fluid)in CFX. Thank You, Petr. |
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June 12, 2006, 09:39 |
Re: Euler equation
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#2 |
Guest
Posts: n/a
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Set the flow to laminar and the viscosity to a very small number.
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June 12, 2006, 09:55 |
Re: Euler equation
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#3 |
Guest
Posts: n/a
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Thank You.
One more question. Is it easy to prescribe viscosity ? Sorry for this question, but at recent time i am not able to check it (once more again sorry). Petr. |
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June 12, 2006, 10:23 |
Re: Euler equation
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#4 |
Guest
Posts: n/a
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Yes. Create a new material in the material editor and set the transport properties as needed.
For a pseudo-Euler analysis dont set the viscosity to exactly 0, just a suitably small value. |
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June 12, 2006, 10:25 |
Re: Euler equation
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#5 |
Guest
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Thank You Joe and CFD Man.
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October 16, 2012, 11:57 |
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#6 |
New Member
su yunde
Join Date: Aug 2012
Location: China
Posts: 16
Rep Power: 13 |
hello!
i am conducting a simulation through euler equation in cfx and meet some questions. i set a very low Dynamic Viscosity value, the 'laminar' turbulence model option .besides, i also set the 'Free Slip Wall' option at all walls. however, i get the following message in cfx solver: +--------------------------------------------------------------------+ | ERROR #002100004 has occurred in subroutine Out_Scales_Flu. | | Message: | | The Reynolds number is outside of the range expected based on the | | Option selected for the TURBULENCE MODEL. Check this setting, | | the values of the properties, mesh scale, consistency of units | | and solution values in the input file. Execution will proceed. | +--------------------------------------------------------------------+ does this message effects the result? thank you for your reply! |
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October 16, 2012, 18:26 |
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#7 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,728
Rep Power: 143 |
It is just a warning. You can ignore it - but make sure you know that the flow is in fact laminar.
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October 17, 2012, 00:19 |
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#8 |
New Member
su yunde
Join Date: Aug 2012
Location: China
Posts: 16
Rep Power: 13 |
thank you, ghorrocks!
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