After osm file simulation, there have 6 folders under the projectname/run, which are 0-null, 1-modeltoldf, 2-expandobject, 3-userscript, 4-energyplusprocess, 5-energyplus, what does the files in each folders' mean? e.g, there have a in.idf in 1-modeltoldf, and an out.idf in 4-energyplusprocess, what's difference between them, thanks!
They each mark a step that OpenStudio is using during a simulation.
0-Null: Never seen anything here
1-UserScript: Each of the OpenStudio measures you've applied and their resultant *.osm files
2-ModelToIdf: The *.idf result from the osm forward translator of the file out.osm file from the previous step
3-ExpandObjects: Not sure, never been applicable to something I've done
4-UserScript: Each of the EnergyPlus measures you've applied and their resultant *.idf files
5-EnergyPlusPreProcess: I think if you were using any of the EnergyPlus pre-processing programs, they would show up here. The out.idf file in this folder is the *.idf file that EnergyPlus is called on. This is the one I always go to when I need to check something.
6-EnergyPlus: The output files from the EnergyPlus simulation. These are all the files that show up if you were just calling EnergyPlus on it's own.
7-UserScript: Each of the Reporting measures you've applied and their resultant *.html files
8-OpenStudioPostProcess: Not sure, but I believe this *.xml file is used to generate the calibration report if you enter in utility bills.
Might not be a complete answer, but hopefully that helps.
I think 3-ExpandObjects contains the result of the ExpandObjects preprocessor that processes HVACTemplate objects. I'm pretty sure this is only relevant if you have zones served by ideal air loads systems, in which case on forward translation OpenStudio first creates a HVACTemplate:Zone:IdealAirLoadsSystem object.
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