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cameronParticipant
This basically means your model is going unstable or it means your 1D htab parameters need to be adjusted.
You may need to lower your timestep or turn on the 1D/2D iteration option.
May 16, 2018 at 7:22 am in reply to: Is it available to programmatically control RAS Mapper to export RAS tiles? #11375cameronParticipantWhat do you mean from tiles? Do you mean raster results or are you talking about the tiles that can be in a web map?
You would need to set up the ras map file to save out the rasters you want and have the floodplain mapping button checked when you run the program for it automatically create raster outputs. This can be done with some scripting.
cameronParticipantThe second terrain is what you will want to use. Terrain is not flat like you have for the first terrain and will for mess up the mapping results. Each cell face is a cross-section and applies the n value the same way the 1D models do.
You are over thinking it.
cameronParticipantResidence time should not be used for rainfall models. Yes you will get models that are stable, but they will be very very slow. This is also true for very steep areas.
Grid cells that only a small volume of water get into will cause the residence time timestep to need to be very small.
I have found that you need to take care in which values you specify for the min and max values or else the model either does not run faster or you get bad results.
cameronParticipantwas the software installed correctly? do you have the exe on your machine?
cameronParticipantis the 1D model connected to the 2D model?
cameronParticipantWell the discharge in the second figure is quite a bit higher than the first figure. Hard to know how far apart they are from each other.
Does the second one have a bunch of discharge from somewhere to make it have a constant flow?
cameronParticipantdoes the problem grid cell get a lot of depth of water or is only a small corner of it getting wet? If only a small corner is getting wet, you may need to adjust it by stretching it out (moving adjacent cells around) to allow more volume in the problem grid cell.
Not sure what the overall cell size of the model is, but a 24 hour run with a 2 second time step that takes an hour to run is not unheard of.
cameronParticipantwhat is your downstream boundary?
cameronParticipantDid you set up a spacial coordinate system first? My guess is the line you drew is very small and does not match real world coordinates.
cameronParticipantThis version should be out this month or next month.
cameronParticipantYou could just use QGIS to project the data. QGIS is free.
March 30, 2018 at 9:22 pm in reply to: 1D Profile Drops to Zero WSL & EGL along Lateral Weir 2D Connection – see im #11277cameronParticipantDo you have the 1D/2D iteration option turned on? Try using the weir equation instead of the 2D equation for the weirs as this sometimes hides issues.
cameronParticipantDo you mean the hydrograph and stage for the structure? You can find it in the plot stage hydrograph button and selecting storage area connection as the type. You could also look in the dss file.
cameronParticipantIt also has to do with the fact that you removed the decimals from the terrain.
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