TELEMAC-MASCARET Forum: Some problems of coupling gaia with t3d (1/1)

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TOPIC: Some problems of coupling gaia with t3d

Some problems of coupling gaia with t3d 1 year 1 month ago #43475

Xinjie Zhang
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Junior Boarder
Posts: 50
Thank you received: 2

Hello everyone！
I am a gaia novice and I have some questions to ask you about the coupling of gaia and telemac3d. It is how to specify a continuous discharge source within the domain, and the flow rate of the source can be specified, and the sediment defined by gaia can also be mixed in the source, and the sediment concentration can be specified, as I added the two attached drawings, respectively, part of the t3d and gaia steering file.
In short, I just want to add specific information about the sediment in a fixed release point. I don't know if this can be done. I hope someone can give me some help.
Best regard!

Attachments:

source_t3d.png (29KB)
gaia.png (63KB)

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Some problems of coupling gaia with t3d 1 year 1 month ago #43488

jurjendejong
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Thank you received: 12

Hey Xinjie,

If I understand your question correctly, that should be a straight forward SOURCE implementation. Between brackets is the shape of each variable in the where NSOURCE is the number of source points you have and NSED the number of sediment classes.

In your T3D.cas you can set

- ABSCISSAE OF SOURCES        :                                            / X-coordinate [NSOURCE]
- ORDINATES OF SOURCES        :                                            / Y-coordinate [NSOURCE]
- ELEVATIONS OF SOURCES       :                                            / Z-coordinate [NSOURCE]
- WATER DISCHARGE OF SOURCES  :                                            / [m3/s] [NSOURCE]
- Optional: SOURCES FILE

In your GAIA.cas you can set:

- SUSPENDED SEDIMENTS CONCENTRATION VALUES AT THE SOURCES :  / g per l [NSOURCE, NSED]

Should that work for you?

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Some problems of coupling gaia with t3d 1 year 1 month ago #43489

Xinjie Zhang OFFLINE Junior Boarder Posts: 50 Thank you received: 2	Hijurjendejong! Your suggestion seems to work well. I'll give it a try. Thank you! Best regard again!
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Some problems of coupling gaia with t3d 1 year 1 month ago #43493

Xinjie Zhang OFFLINE Junior Boarder Posts: 50 Thank you received: 2	Here is my csteering file! Attachments: t3d_ex2_20...0-20.cas (6KB) gai_ex2-t3...0-20.cas (2KB) ex2_boundary.cli (37KB) ex2_geometry.slf (474KB)
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Some problems of coupling gaia with t3d 1 year 1 month ago #43494

mafknaapen OFFLINE Expert Boarder Posts: 157 Thank you received: 62	Does your flow model run without errors without the coupling to GAIA? If I read the T2D steering file correctly, you are trying to run a model with a 5m/s current at the location of the discharge and a 10s time step. I would be surprised if that is stable.
	Dr Michiel Knaapen Senior Scientist E This email address is being protected from spambots. You need JavaScript enabled to view it. T +44 (0)1491 822399 HR Wallingford, Howbery Park, Wallingford, Oxfordshire OX10 8BA, United Kingdom T +44 (0)1491 835381, F +44 (0)1491 832233 www.hrwallingford.com The administrator has disabled public write access.

Some problems of coupling gaia with t3d 1 year 1 month ago #43495

Xinjie Zhang OFFLINE Junior Boarder Posts: 50 Thank you received: 2	Hi mafkaaapen, Yes, although I'm not sure why, but I have some previous running out of the condition, please feel free to check if you need.
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Some problems of coupling gaia with t3d 1 year 1 month ago #43498

Xinjie Zhang OFFLINE Junior Boarder Posts: 50 Thank you received: 2	Hi mafknaapen, I am very sorry that I tried to upload several times but failed, because the file is too large. Even after compression, it still can't be uploaded.
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