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firetools / qgis2fds

An open source and free tool to export terrain elevation, landuse, and georeferencing to NIST FDS for computational fluid dynamics (CFD) wildfire or atmospheric pollutants dispersion simulations.

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Exported .fds not running

jorgevaldivia91 opened this issue · comments

commented

Emanuele, first of all, thank you for this amazing tool. I've been trying for several days to export an .fds file using qgis2fds with different DEM layers, places, etc (with and without fuel model layers). The only difference I've found so far is that im trying to do it from a place in South America. I followed the instructions in the quickstart section, and there is no problem in exporting the .fds file (no error in the qgis log while running qgis2fds). Nevertheless, it also exports a .bingeom file which I believe has the terrain data. But once I open the .fds file I get the following in the first line:
! Generated by qgis2fds <__error__> on QGIS <3.14.1-Pi>

I changed time to &TIME T_END=0. /, since I only need to see the geometry (terrain data) in smokeview. But once I do it, I get the following error in FDS.

ERROR: Problem with MISC line (CHID: terrain)
ERROR: FDS was improperly set-up - FDS stopped (CHID: terrain)

I tried searching more about that .bingeom file created with the qgis2fds tool, but found nothing (and in the quickstart there is no mention of that type of file). To be honest, I've been trying to export terrain data to fds for a long time (also trying BlenderFDS), but I just can't figure it out. In blender I make a mesh-cube-box around the DEM, open the DEM from blenderGIS and everything is ok, but then I need to set the mesh of the cube really small in order to see the data (I set the DEM data to voxels...), otherwise I see the terrain filled of cubes and holes within it in FDS. I'd really appreciate some help. Thanks in advance! (FYI, im running QGIS 3.14.1-pi on a Windows 10-64 bit machine / DEM resolution is 12.5 m -ALOS PALSAR- and I've also tried with SRTM / I'm using last Blender version with blenderFDS28x).

commented
commented

Oh I see, thank you Kevin :), have a nice weekend!

commented
commented

Emanuel, thank you for all you've done!

Answering to your questions:

  1. I downloaded qgis2fds from the GitHub repo (.zip file), and installed it in via qgis-pluggins. I also tried today removing the pluggin, download it again and re-installing it, but the result was the same.
  2. I think the wiki is very good, however the only place where i've seen something related to generate terrain for FDS (via DEM) is in the examples shown here (the golden gate one). There is not much information about it, but as far as I understand is a work in progress in FDS.

I just wanted to thank you for all you've done. BlenderFDS and qgis2fds are amazing tools! Please keep doing it. I am a teaching assistant at the university and, together with the professor, we are proposing the students to run wildfire simulations of different places in South America using FDS, so we are trying to provide them the terrain data.

Have a nice weekend!
Sincerely, Jorge.

commented
commented

Sounds amazing! I'll be waiting for both the updates and the wiki :)
Thanks again Emanuel, you've contributed a lot to wildfire science-research.
We are also trying to run some simulations via FlamMap and FDS of a wildfire that took place in Chile a couple of years ago, so we are planning to use qgis2fds for the terrain data.
Have a nice week!
Jorge

commented
commented

It would be astounding! Once the results are published I'll definitely let you know and provide all the data/procedure. It will be just amazing to contribute in something.

commented