Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.



Re: PDE Toolbox
Posted:
Jan 4, 2012 7:22 AM


Torsten <Torsten.Hennig@umsicht.fraunhofer.de> wrote in message <c8f3f432033942089ea713f72dcbefb9@z25g2000vbs.googlegroups.com>... > On 4 Jan., 07:23, "Sashankh Rao" <sashankh...@gmail.com> wrote: > > I am using the pde toolbox to solve elliptic pdes for a temperature distribution. I need to fix the temperature at certain nodes and use them as boundary conditions. However, I am not able to do this using the toolbox. Is there any way of specifying the temperature at a given node using the command prompt perhaps? Thanks > > What about making small circular holes in the geometry with a fixed > temperature at the > circular boundary for the positions where you want to fix the > temperature ? > This will waste some grid cells to mesh the circles adequately, but it > does what you want. > > Best wishes > Torsten.
Hi Torsten,
Thanks for your suggestion. I actually have two domains separated by an interface. I solve for temperature in the first domain and use the interface values as boundary conditions to solve for temperature in the second domain. Hence I will have multiple nodes at which the temperature must be specified and need to automate the process. Further the temperature at each node is not the same on the interface.
I agree with your idea of creating circular holes. That should work out. For this case I was wondering if there could be any other way of specifying the temperature? Thank you for your time.
Sashankh



