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Artificial viscosity

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DDLL

Bioengineer
Joined
Jun 30, 2013
Messages
4
Location
GB
Hi all,

I am modeling the wave propagation in tissue.

I set the tissue to be hyperelastic and introduced an artificial viscosity with the abaqus default values (linear 0.06, quadratic 1.2),
However, I found these default settings changed my wave too much, so I am trying to adjust those values.

Can someone kindly tell me the difference between the linear and quadratic viscosity?

Many thanks in advance!
 
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