I don't know much about HDF5 files, but can you just define a new material following the code at < https://meep.readthedocs.io/en/latest/Materials/#conductivity-and-complex> (and do the same thing for mu < https://meep.readthedocs.io/en/latest/Materials/#magnetic-permeability>), then set any geometries imported from HDF5 to have this user-defined material?
On Tue, Oct 13, 2020 at 1:11 AM Hannes Kohlmann <[email protected]> wrote: > Hi there, > > I have now been successfully appying MEEP in the field of lightning > electromagnetic environments (effect of terrain on field propagation) for > some time. > So far I have been initializing the geographical terrains by blocks, > specifying ε and σ (up to 500.000 blocks) in a loop for every elevation on > a geographical grid (DEM model). This becomes quite slow for large domains. > > The reason, why I did not take HDF5 for init was because I would not be > able to set the electric conductivity σ (D_conducitvity in MEEP) or μ with > HDF5, only ε. > Is it correct, that σ and μ cannot be inited using HDF5 files, or have I > misunderstood something? > Are there any suggestion, how I can more efficiently introduce such > geometric objects (i.e. the terrain) with the ε, σ and μ parameters? If > yes, that would be of great benefit to the progress of analysis. > > Current simulations are set up with a resolution of 20 (equals 50m, one > mp_unit = 1km). The blocks are chosen to be arount 150-200m broad and > simulation domain is > 200km x 20km x 10km = 320.000.000 cells, simulation times about 10h. > > Many thanks in advance. > > Best regards, > Hannes Kohlmann > _______________________________________________ > meep-discuss mailing list > [email protected] > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss -- Patrick Flanigan Etaphase, Inc. 8201 NE 164th Avenue, Suite 200 Redmond, WA 98052 http://etaphase.com/
_______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
