branching grid
Hello FiPy list, I am interested in solving a problem that involves two or more overlapping/connected domains. The same governing equations apply to each domain, but the properties are different and I am not sure the best way to include geometrical effects. In the simplest case, the primary domain is 1D, with one or more secondary 1D domains extending out from each node, like branches on a tree. When there is one secondary domain, this is almost a 2D grid, except the branches are not connected to one another, except through the trunk. Is there a way to generate a 2D mesh and change the connectivity of the nodes? Is this something I would have to do with gmsh? Is this even something that can be done with gmsh? Kris ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
Re: Slope limiter methods in FiPy VanLeerConvectionTerm
Jason, FYI, the changes have been committed back to the develop branch. See http://matforge.org/fipy/ticket/564 and http://matforge.org/fipy/changeset/5b1957aad/fipy. On Thu, Mar 21, 2013 at 12:39 PM, Jason Furtney jfurt...@itascacg.comwrote: Daniel, Thanks for the reply and go ahead and make the changes. Also the lines, self.CFL = interiorCFL / vol1 self.CFL = numerix.maximum(interiorCFL / vol2, self.CFL) in VanLeerConvectionTerm._getOldAdjacentValues() do not seem to do anything. I will have a look at the Riemann branch as I work through the CLAWPACK book, thanks for the info. Jason On Thu, Mar 21, 2013 at 11:20 AM, Daniel Wheeler daniel.wheel...@gmail.com wrote: On Thu, Mar 21, 2013 at 8:59 AM, Jonathan Guyer gu...@nist.gov wrote: File a ticket at http://matforge.org/fipy/newticket. If you're fixing a bug, then file a defect ticket about the bug; if you're adding a new feature, then an enhancement ticket; etc. Then paste the result of `git request-pull develop origin` (or whatever is appropriate for your branch and clone) into a comment on the ticket. You can send a message to the mailing list about it if you like, but I at least should see your pull request on my RSS feed. FYI, I filed a ticket, see http://matforge.org/fipy/ticket/564. -- Daniel Wheeler ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ] -- -- Jason K. Furtney, PhD Itasca Consulting Group 111 3rd Ave. South, Suite 450 Minneapolis, MN 55401 USA (612) 371-4711 www.itascacg.com ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ] -- Daniel Wheeler ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
Re: branching grid
2013/3/25 Kristopher Kuhlman kristopher.kuhl...@gmail.com Hello FiPy list, I am interested in solving a problem that involves two or more overlapping/connected domains. The same governing equations apply to each domain, but the properties are different and I am not sure the best way to include geometrical effects. In the simplest case, the primary domain is 1D, with one or more secondary 1D domains extending out from each node, like branches on a tree. When there is one secondary domain, this is almost a 2D grid, except the branches are not connected to one another, except through the trunk. Is there a way to generate a 2D mesh and change the connectivity of the nodes? Is this something I would have to do with gmsh? Is this even something that can be done with gmsh? You should read up on domain decomposition methods ( http://en.wikipedia.org/wiki/Domain_decomposition_methods ). Specifically: http://en.wikipedia.org/wiki/Schwarz_alternating_method So creating two models, each with their own mesh, and an overlap domain, and apply upscaling/downscaling between the solution is the simplest start. As FiPy is FVM, basing your scaling on a conserved quantity is the way to go in my opinion. Benny Kris ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ] ___ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
