Weak statement for Galerkin Method -- CFD Online Discussion Forums

March 26, 2010, 20:19	Weak statement for Galerkin Method	#1
rugabug New Member Join Date: Mar 2010 Posts: 10 Rep Power: 16	I have the equation -∇^2u+u-x^2=0 where u(0)=u(1)=0. I need to solve it using Galerkin Method using the approximation of psi=sin(npix). I've already solved the exact solution but when I work out the Galerkin method I only get half a sine wave. I believe I'm messing up the weak statement. Could somebody walk me through the method to construct a weak statement?

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