interaction pressure navier stokes and a elastic structure

Numerical methods and mathematical models of Elmer
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armanini333
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Joined: 04 Apr 2013, 11:46
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interaction pressure navier stokes and a elastic structure

Post by armanini333 »

Hello to everyone :-)

I'm wondering if it is possible to use the calculated pressure as a load on a elastic beam. The elastic beam has no slip walls. I assume small displacements (1. order theory) and my target is to get the stresses in the beam resulting from the pressure as load.
I thought about a sif code like that, but it doesn't work.

Boundary Condition 4
Target Boundaries(1) = 63
Name = "inter"
FSI BC = True
Force 1 = Equals Pressure 1
Force 3 = Equals Pressure 3
Force 2 = Equals Pressure 2
Noslip wall BC = True
End

Can anyone help me?

Thanks,

Stefano
armanini333
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Joined: 04 Apr 2013, 11:46
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Re: interaction pressure navier stokes and a elastic structure

Post by armanini333 »

think I found out. I just have to put

Boundary Condition 4
Target Boundaries(1) = 63
Name = "inter"
Force 1 = Equals Pressure
Force 3 = Equals Pressure
Force 2 = Equals Pressure
Noslip wall BC = True
End
raback
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Re: interaction pressure navier stokes and a elastic structure

Post by raback »

Hi Stefano

Rather put:
Normal Force = Equals Pressure

or depending on the direction of the normal it could also be:
Normal Force = Opposes Pressure

-Peter
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