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Old   April 8, 2013, 14:53
Default add source terms in CFX
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Hi there

I have got a problem about adding folder of source terms in CFX and hope someone can help me figure it out.

I want to modelize a fan by adding sources termes (Energy, X-momentum, Y-momentum and Z-momentum) in the leading edge's plane.

I have 4 folders momentumX.csv, momentumY.csv,momentumZ.csv,Energysources.csv when I have for each coordinate a value, it looks like :


[Spatial Fields]
x, y, z

x [ m ],y [ m ],z [ m ],x_momentum [ Pa m^2 ]
My question is how to insert those folders ? CFX offer the possibility to add one source point, but in the case of my projet I have more than 1000 points.

My geometry is :

Any comments are welcome.

Best regards!
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Old   April 8, 2013, 18:32
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Glenn Horrocks
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Use a volume source term for this application. Define a volume in your mesh and assign a source term to it. The source term can vary as a function of XYZ so this will do what you need.
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Old   April 11, 2013, 18:37
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Thank you a lot for your reply.

As you said, I create a volume in my mesh as shown in this picture :

but now in CFX, I don't see how to insert the folders like I've shown in my first message. I only find the option to insert a X,Y,Z momentum component (only one value) or an expression which is not the case of my problem. I'm wondering if it's possible to initilaze by a profil data like the inlet boundary condition cvs's folder in the tutorial (Chapter 11: Flow Through a Butterfly Valve).

thanks in advance
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Old   April 12, 2013, 08:45
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Im pretty sure you can include profile data in the input for the momentum components. Initialize your .csv file, and enter something like Xmomentum.x_momentum(x,y,z) for the X component (I used the names from your example).
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