# Euler equation

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 June 12, 2006, 09:20 Euler equation #1 petr Guest   Posts: n/a 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.

 June 12, 2006, 09:39 Re: Euler equation #2 CFD Man Guest   Posts: n/a Set the flow to laminar and the viscosity to a very small number.

 June 12, 2006, 09:55 Re: Euler equation #3 petr Guest   Posts: n/a 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.

 June 12, 2006, 10:23 Re: Euler equation #4 Joe Guest   Posts: n/a 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.

 June 12, 2006, 10:25 Re: Euler equation #5 petr Guest   Posts: n/a Thank You Joe and CFD Man.

 October 16, 2012, 11:57 #6 New Member   su yunde Join Date: Aug 2012 Location: China Posts: 16 Rep Power: 7 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!

 October 16, 2012, 18:26 #7 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 14,219 Rep Power: 110 It is just a warning. You can ignore it - but make sure you know that the flow is in fact laminar.

 October 17, 2012, 00:19 #8 New Member   su yunde Join Date: Aug 2012 Location: China Posts: 16 Rep Power: 7 thank you, ghorrocks!

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