parabolic inlet

[dimitri14]

Hello i'm trying to WRITE a parabollic velocity inlet as described on the following picture

i have read

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https://www.code-saturne.org/forum/viewtopic.php?p=3675&hilit=inlet+parabolic#p3675

but my GUI seems to be different
regards

[Yvan Fournier]

Hello,

Can't see the linked image. I don't see where is the difficulty here. Did you try setting the formula you need ? Also check the rabbit showing available variables.

Best regards,

Yvan

[dimitri14]

Thanks for the help

In the post

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https://www.code-saturne.org/forum/viewtopic.php?p=3675&hilit=inlet+parabolic#p3675

user law was based on (sic)analytic functions vx(x,y,z), vy(x,y,z) and vz(x,y,z) (in Cartesian coordinates)".
in my case it 'd be vx=35,693*y*(0,41-y), vy=0 and vz=0.

However in my GUI the user law is defined as

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u_norm=

So i wondering if

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u_norm=35,693*y*(0,41-y)

does work?
Regards

[Yvan Fournier]

Hello,

In the GUI, you also have a second option for the flow direction: either normal to the inlet, a given vector direction, or a second user function. So you can combine the direction and norm definitions to get the desired velocity profile.

Best regards,

Yvan

[dimitri14]

Thank you Yvan for your quick and accurate answer
Regards