Axisymmetric model and wedge angle

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ffan
Posts: 66
Joined: Thu Jul 24, 2014 3:23 pm

Axisymmetric model and wedge angle

Post by ffan » Mon Jun 03, 2019 1:21 am

Hi CS users,

For an axisymmetric model, we need to define a wedge domain of one-cell thick in the azimuthal direction. Does Code_Saturne assume a particular angle for the wedge? Thanks.

- ffan

Yvan Fournier
Posts: 2638
Joined: Mon Feb 20, 2012 3:25 pm

Re: Axisymmetric model and wedge angle

Post by Yvan Fournier » Tue Jun 04, 2019 12:31 am

Hello,

No, there is no specific recommendation. We typically use 5 to 10 degrees.

Be aware that for axy-symmetric cases, we have an issue in the computation of the wall distance (see https://github.com/code-saturne/code_saturne/issues/41 for details) which can affect turbulent wall laws.
The angle might have an influence on this (so testing for several values might be a good idea if you go all the way towards seeing whether a smaller of larger value is better).

Best regards,

Yvan

ffan
Posts: 66
Joined: Thu Jul 24, 2014 3:23 pm

Re: Axisymmetric model and wedge angle

Post by ffan » Tue Jun 04, 2019 3:24 am

Thanks Yvan.

- ffan

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