HEC-RAS 2D: 2d results comparison, eg vs dg

[BrianS]

I am using the October release of HEC-RAS 5.0beta.

I have a 2d model built of a 2000′ channel reach contained within a narrow (600′ wide) valley. The entire reach is modeled in 2d for existing and design conditions; 2 separate geometries.

What tools are available in the current release for comparing existing and design results, like those available for 1d geometries? Does HEC have any tools planned to compare results in the future releases?

[cameron]

The best thing you can do currently is export out the results as a raster and do a comparison in another program by subtracting them.

You can also select each element in mapper and get results. Another option would be to use the result data in the hdf file, but it can be confusing if you have not dealt with that format before.

[BrianS]

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From: Brian Schlosstein
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Date: Sun, 10 May 2015 19:17:03 -0700
Subject: RE: HEC-RAS 2D: 2d results comparison, eg vs dg
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Thank you Cameron.=20
________________________________________
From: cameron [via HEC-RAS Help] [[email protected]]
Sent: Friday, May 08, 2015 11:27 AM
To: Brian Schlosstein
Subject: Re: HEC-RAS 2D: 2d results comparison, eg vs dg

The best thing you can do currently is export out the results as a raster a=
nd do a comparison in another program by subtracting them.

You can also select each element in mapper and get results. Another option=
would be to use the result data in the hdf file, but it can be confusing i=
f you have not dealt with that format before.

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[Lonnie A]

I found out recently that you can view boundary condition hydrographs in the DSS file (at least in the March version you can). If your downstream is set up with normal depth boundary you should be able to compare the hydrographs and if grid set up properly with cells aligned like you would have XS the cell WSE along the boundary should all be very similar so you can select one cell in rasmapper to view the time series.

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