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Mass,Momentum,Energy source!

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Old   March 16, 2002, 14:53
Default Mass,Momentum,Energy source!
  #1
S. Ferraris
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Hi !

I have same problems with a mass,momentum and energy source within the interior of the fluid.

I coulndnt get the velocity and the direction required in the fluid.

Can anybody help me.

Thank you in advance

Sergio Ferraris
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Old   March 17, 2002, 19:35
Default Re: Mass,Momentum,Energy source!
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Greg Perkins
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What is the problem!!!!

Source not working, not giving expected result???

Greg
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Old   March 18, 2002, 08:25
Default Re: Mass,Momentum,Energy source!
  #3
S. Ferraris
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thank you! Yes .

I did not have what i hoped. I put x(kg/m3) and x (n/m3)( Y direction for example) and first at all i didnt get velocity in Y direction only, i had a component in X direction , also different mass rate was obtained. I used different numbers but i could not make it works.

Sincerely.

Thank you

Sergio Ferraris
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Old   March 18, 2002, 17:52
Default Re: Mass,Momentum,Energy source!
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Greg Perkins
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You will need to do two things:

1. add a total mass source (kg/m3-s) to the cell 2. add momentum terms to the X and Y velocity (kg/m2-s2).

Try them independently to see how they work!

Greg
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Old   March 19, 2002, 13:53
Default Re: Mass,Momentum,Energy source!
  #5
S. Ferraris
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Thank for you answer.

I tried to set up the momentum and mass source in that way to simulate an puntual velocity inlet. So in this way i didnt do the mesh again , but i finally realise that is not a good idea. Do you know same way to do that ?

Best regards.

Sergio.
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