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From: | Lesage,Anne Cecile J |
Subject: | adding buoyancy forces to Biot poroelastic equations |
Date: | Tue, 16 Nov 2021 22:12:27 +0000 |
Dear all To implement the building of my fem matrix for the mechanical equilibrium, I presently write
md.add_linear_term(mim9,
'G*Grad(u):Grad(Test_u)+G/(1-2*nu)*Div(u)*Div(Test_u)+alpha*Grad(p).Test_u') How can i add an additional buoyancy terms to the equation (see right-hand side attached equation picture)? gravity is vector g = - 9180 N along the x axis for my mesh rhot (density tissue is constant) but rhof = rho water for x<0 and rhof = rho air for x>0 Thank you Anne-Cecile Lesage
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mechanicaleqbuoyancy.png
Description: mechanicaleqbuoyancy.png
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