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RE: boundaries problem

AG
Adelina Gaol, modified 11 Months ago.

boundaries problem

Youngling Posts: 2 Join Date: 12/7/17 Recent Posts
Hello All,

I'm a newbie in using Delft-3D, and i have some problem to use it.
I have finished my grid and bathmetry and i've some problem to provide the boundaries data to running it in Delft3d-Flow.
How can i find boundaries using .bct format in Delft3D-Flow? i've search it in TOPEX and I couldn't find it.

I really need your help, due to my thesis in my college.
Thank you.

Regards,
Adelina
flow input boundary condition boundary data
MD
meddy danial, modified 8 Months ago.

RE: boundaries problem

Youngling Posts: 19 Join Date: 7/25/18 Recent Posts

Dear Adelina

You can add boundary condition in flow menu input/wave input. After that you shoul insert the file extenstion .grd and .enc and .dep. Then you can add boundary condition by clicking on the menu View ->Visualization Area. You will see the domain model/bathymetry. Then click Zoom Box at the location of open boundary (upstream and downstream). Click Edit ->select open boundaries. After that, select Edit Mode-->Click Add. Drag your mouse from left point until rigth point at the grid lines on the open boundaries. Save the file, After that you can add manually data of BC or modify it in .bct or .bcc file. 

Carol Loomis, modified 14 Days ago.

RE: boundaries problem

Youngling Posts: 1 Join Date: 3/11/19 Recent Posts
Adelina Gaol:
Hello All, I'm a newbie in using Delft-3D, and i have some problem to use it. I have finished my grid and bathmetry and i've some problem to provide the boundaries data to running it in Delft3d-Flow. How can i find boundaries using .bct format in Delft3D-Flow? i've search it in TOPEX and I couldn't find it. I really need your help, due to my thesis in my college. Thank you. Regards, Adelina

 

Hello Adelina,

 

I'm also stuck with the boundary condition in Delft3d model (for my Lumuss projects). I tried to add boundary conditions and then save in 2D and 3D models. While it works perfectly well in 2D, it gives me an error in 3D. How can it be possible? Have you managed to create a working model?

 

 

 

Phil Shepperd, modified 14 Days ago.

RE: boundaries problem

Padawan Posts: 25 Join Date: 12/4/18 Recent Posts

Hi Adelina.  One easy way to generate a boundary file is in Dashboard, which you can download from the Deltares site.  Load in your model grid, then generate a .bnd and .bca file by pressing the button ....... works really well for most models, although be careful if your model is in shallow / constricted water. 

KN
Kate Lauren Neigel, modified 14 Days ago.

RE: boundaries problem

Youngling Posts: 4 Join Date: 8/23/17 Recent Posts

Hi,

I am trying to run a model with 1 upstream flow BC, and 2 downstream waterlevel BCs. Does anybody know if Delft3D flow can be used for DS boundary splitting? My model runs, but when I open the output it is empty (dry).