Hello Ben,
On 03/29/2013 03:35 PM, Ben Derrett wrote:
Hello,
In the weak formulation of my problem (a 2D diffusion problem), I have the term
\int_{\Gamma^N} p\nabla V\cdot M n
where \Gamma^N is region where Neumann BC is applied, p is a test function, V is the unknown function, M is a 2x2 matrix and n is the normal vector. Has an SfePy term been written corresponding to this?
I do not think so. However it should not be difficult to add it - could you provide an example file using a term like that, so that I could test the possible implementation. It should run without the non-existing term. Also, what name would you propose? dw_surface_s_grad_s_n??
Alternatively, is there a SfePy term corresponding to the integral
\int_{\Gamma^N} p\nabla V\cdot q,
where q is a vector? I saw the term dw_surface_lcouple, but it doesn't seem to support the weak evaluation mode.
As above, but I assume that having the above term would suffice, right?
r.