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poroelastic 1d benchmark

From: Lesage,Anne Cecile J
Subject: poroelastic 1d benchmark
Date: Wed, 10 Nov 2021 00:05:02 +0000

Dear all


Why shall I use a reduced fem for the pressure to solve the biot equations?


mfp_ = gf.MeshFem(mesh, 1)


keptdofs = np.arange(mfp_.nbdof())

keptdofs = np.setdiff1d(keptdofs, mfp_.basic_dof_on_region(T_RG))

mfp = gf.MeshFem("partial", mfp_, keptdofs)




#Equation 1

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')


#Equation 2

md.add_linear_term(mim4, 'alpha/dt*(Div(u)-Div(u_prev))*Test_p+k*Grad(p).Grad(Test_p)')


Thank you







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