Bed load transport all zeros!

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Posts: 27
Joined: Wed Nov 11, 2015 4:49 pm
Location: Georgia Institute of Technology

Bed load transport all zeros!

#1 Post by txu68 » Tue Jan 24, 2017 2:44 am


I have ran a ROMS and SWAN coupled model for an idealized case with sediment module. The model bathymetry is a simple sloping bottom with idealized bars. I have defined the BEDLOAD_SOULSBY cpp option. But the outputs I got for bed load transport are all zeros. Some relevant settings are listed below.

Nbed = 1;
NCS = 1;
NNS = 0;

I have not turned on the morphology change cpp option. In order to investigate this problem, I have followed the source code of sed_bedload.F to calculate the bed load transport based on the latest time stamp and I have got non-zero results. Any ideas?

Any advice will be really appreciated!


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Re: Bed load transport all zeros!

#2 Post by jcwarner » Tue Jan 24, 2017 3:04 am

the bedload does not move cohesive sed (NCS). It only moves the non cohesive (NNS).

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