On 9/10/21 11:23 AM, Morris Jowas wrote:
Thank you Bruno. I was able to adapt the Neumann BC implementation in step-7 as an extension to step-4. As a follow up question: has anyone implemented */mixed boundary conditions/* as an extension to step-4? Since step-4 implements the steady state Laplace problem, such boundary conditions will be of the form: h*(u_ext - u).

Morris -- I don't think anyone has. Though the process of course works similarly to Neumann boundary conditions; it just requires an additional term in the matrix, nor just in the right hand side.

I think all of this would be a nice idea for a worked out section in the "Possibilities for extensions" section of step-4. Would you be interested in contributing such a section?

Best
 W.


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Wolfgang Bangerth          email:                 [email protected]
                           www: http://www.math.colostate.edu/~bangerth/

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