Dirichlet and Neumann boundary conditions Finite Element Method

Asked Nov 13 '12 at 17:40

Active Nov 13 '12 at 17:40

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I have the following problem in Finite Element Method

$$ -(\alpha u')' + \beta u' + \gamma u$$

with $ \Omega = (0, 1)$, $ u(0) = 0 $ and $ u'(1) = 3 $

to be able to write the weak formulation of the problem do I need a lifting function?

i.e., do I need to define something like

$$ \tilde u = u - R$$

P.S. Sorry for the tags there is nothing like "finite-element", "neumann-boundary-condition", "dirichlet-boundary-condition", "mixed-boundary-condition"

asked Nov 13 '12 at 17:40

BRabbit27

I am suggesting this question be migrated to [scicomp.SE] – Shuhao Cao Nov 13 '12 at 18:03
Ok. I thought this was the correct place, anyway, how can it be migrated? – BRabbit27 Nov 13 '12 at 18:09
A mod could get the migration done, but if you would ctrl+c&v your question there, that would be ok too. – Shuhao Cao Nov 13 '12 at 18:10
The ODE is not properly expressed. Have you premultiplied by a test function and integrate to see what happens? – pluton May 29 '18 at 20:08

Dirichlet and Neumann boundary conditions Finite Element Method

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