1. Discussion

Time Varying Boundary for WAVE

2023-06-30T18:25:27Z

I am trying to set a time varying boundary for a WAVE model. I am hindcasting for a period of time where I have observed wave conditions at my boundary from a buoy. I would like to set my boundary conditions to this observed data. Any ideas on how to do this? There is a reference to using time series as boundary conditions in the manual but I do not understand what it is saying to do.

RE: Questions about the Delft FM

2023-06-22T17:05:12Z

Is Delft3D open source?
Delft3D FM is fully open source (GNU AGPL).

sediment

2023-06-21T06:14:55Z

Hello scholars, first time here, I am working on the hydrodynamic-sediment module of delft 3d fm by myself, and I have encountered several problems in dealing with the sediment accumulation in the river section, and I would like to ask for help from experts around the world through this platform.
The questions are as follows: How to calculate the siltation of a river segment? I am trying to get the volume change to see if the section is siltation or scouring. But when exporting by observing the cross section, it is not clear what is the unit and formula of the flux for bedload output from the cross section.
Thank you very much for your reply.

RE: Conda option for Delft3D4/DelftFM software

2023-06-19T09:47:00Z

Regarding the integration of Delft3D4 with the project's framework, I understand that you have managed to compile Delft3D4 with conda, allowing it to be installed with "conda install -c gbrey delft3d4" for OSX and Linux. While this solution works, there are a few issues that need to be addressed.
Firstly, the repository's structure includes several third-party software that are available as conda packages but are not strictly necessary for the integration. This can make the setup more complicated than it needs to be. It would be beneficial to streamline the repository and remove any unnecessary dependencies.
Secondly, the Makefiles in the repository may not be well-suited for the task at hand. It would be ideal if the developers could update the Makefiles to better support the integration with Delft3D4.
In terms of the repository itself, it would be preferable if it were hosted on a platform like GitHub or GitLab.

Spatially varying roughness file not correctly generated

2023-06-14T12:39:06Z

Hi there,

I am creating a spatially varying roughness file as part of some hydrodynamic modelling I am doing on the GBR. I followed the steps found in another thread to produce a spatially varying roughness file. However, when I generate this file and check it, inside the file are a lot of negative values. I have specified the values I wanted using the polygons and assign values under the operations tab.

Am I missing a step here as to why it keeps producing a file like this?

I have attached my file so you can see.

Kind regards
Eleanor

RE: fatal error: sys/sysctl.h

2023-05-10T16:24:02Z

Hi Francesco - did you solve this error?

RE: Questions about the Delft FM

2023-04-30T22:39:33Z

thanks to share...

Meteo file input ERROR

2023-04-25T03:30:37Z

I am trying to run a model with typhoon Haiyan as forcing in which I generated a .spw file from the Delft Dashboard. I have three DD grids for this matter. However, my model keeps getting errors.

The errors are as follows:

ERROR Meteo input: wrong entry in meteofile ddbora2_typhoonJMA.spw; expecting keyword or commentary, but found: 9.88 9.88 9.89 9.89
ERROR Error reading cyclone wind-u field

What should I do with my .spw file on this matter?

Thank you so much!

Pia

Simple FLOW Run - water level change too high

2023-04-19T01:42:30Z

Hi!

I am running a domain decomposition grid. And here are the mdfs. The same mdfs completed its run for the timeframe October 13-November 13, 2013 but when I changed it to January 1-April 25, 2013 the model keeps getting error telling me that the water level change is too high. I also attached the original depth used for the Oct-Nov run. I already changed my depth with only a maximum value of 500 for the Jan-Apr run, but it still keeps getting water level change t6o high.

What do you think should I do?

Thank you for all your replies!

Pia

RE: ERROR in .spw file

2023-04-01T03:54:34Z

Hi Sofia,
It seems the time settings are inconsistent between the two data.
If you make this via Delft Dashboard, I suggest you use the same reference time when creating FLOW INPUT and SPW files.

Thank you - Munawir

ERROR in .spw file

2023-03-28T03:39:16Z

My FLOW simulation keeps getting errors in the spw file. It says:

ERROR In file ddbora_typhoon.spw: Start time of forcing data ( 3240.0000 ) should precede start time of simulation ( 0.0000000 )

Do you know how to resolve this case?

Thank you!

Support on Azure / Other cloud-computing platform

2023-03-22T07:43:33Z

Does Delft3D FM works on Azure / AWS or other cloud-computing platform? I am thinking of making use such service to improve model run time but not sure if that is possible at all. Is there anyone having specific insight on this (or doing so already)?

Flow Ice Module

2023-03-21T13:22:33Z

Hello everyone,
Recently, I am trying to simulate ice with the ice module, but I am having a lot of trouble:
1- The inability to account for the effect of salinity on freezing point resulted in simulated ice area and thickness being much larger than it actually is.
2- When I don't take into account ice movement, even though the ice only has thickness in part of the area, the concentration of ice is 1 in the entire area. (1.fig, 2.fig)
3- When I consider ice movement, even though the thickness of the ice is 80 cm, the concentration of ice is close to 0. (I once spoke to an academic who had used the ice module, and he thought it might be that my grid was too big). I also tried not to consider ice movement, but the thickness of the ice when considering ice movement is closer to reality. (3.fig, 4.fig)
4. I wonder if the ice module affects the wave module because I want to study the effect of ice on waves.
My ice module version is 20160210_12924_ice_coverage.1
These questions have been bothering me for a long time, and I hope someone can help me answer them. Thanks!

Why does an untransportable substance have a boundary outflow in .mon file?

2023-02-25T04:05:46Z

Hi,

I added a new substance to WAQ and made it non-water-transportable (substance ID: Veg, in attachment). But when I checked the monitor file (.mon file), I found boundary outflow (attachment). I don't understand that. Why does an untransportable substance have a boundary outflow? As I understand it, such substances should only participate in local processes and not move through space.

And by the way, in terms of the columns, why isn't the total mass flow equal to the sum of the other terms?

I would appreciate your help.

Regards,
Zhen

WAQ-Mass Balances- zero contribution of Bo+Lo

2023-01-16T08:36:35Z

Hello,

I run a basic WAQ pollution scenario in a marine area (no tide). The .hyd file is created by FLOW and basic processes are loaded via the .sub file. Boundary conditions are set as time series and discharges are set in the plot area (constant in time)-both manually. Atmospheric deposition occurs as well-set by a segment function file. Results look normal and logical (.ada file), with the contribution of the discharges and open boundaries visually seen in all output files. Despite that, in the mass balances output file (.prn), the contribution of open boundaries and waste loads is zero for all pollutants, which is not what I expect. I attach an image.

Substance Cd Sources/Inflows Sinks/Outflows
------------------------------------------------------------
Cd _Storage 0.00000E+00 -0.29507E+03
Cd _All Bo+Lo 0.00000E+00 0.00000E+00
Cd _Internal transport 0.29052E+08 -0.29053E+08
Cd _dSedCd 0.00000E+00 -0.22333E+01
Cd _dSedCdS2 0.00000E+00 0.00000E+00
Cd _dAtmDepCd 0.14935E+04 0.00000E+00
SUM OF ALL TERMS 0.29054E+08 -0.29054E+08

I use Deltares, Delft3D-WAQ GUI, Version 4.00.00.57433, Aug 16 2018 to create the scenario and Deltares, DELWAQ Version 5.06.00.7094, Mar 29 2017 to run the simulation.

Thanks for any suggestions that may lead to resolve this!

Katerina

ERROR WHEN RUNNING FLOW MODULE

2022-12-27T10:01:41Z

Hello.

I have an error when trying to run my flow simulation, The error is shown in grey dialog box. Summary its says it cannot connect to "socket" and "Failed to connect to server: Status:: UNAVAILABLE_RESOURCE"

I need help for my final project. Thank you very much for helping.

Cheers,
Har.

Link Intel Fortran 11 - Help compiling Delft3D 4.00.01

2022-10-28T18:52:35Z

Dear

I need to compile Delft3d version 4.00.01.
When accessing the Readme file, Visual Studio 2008 and Intel fortran 11 are recommended. I need to do it for Windows 10.
https://svn.oss.deltares.nl/repos/delft3d/tags/delft3d4/archive/4.00.01.0265/src/

VB 2008 got the link: https://my.visualstudio.com/Downloads?q=Visual%20Studio%202008&pgroup=

However, for Fortran, to download from the intel website, you need a license and other information that I got that is already obsolete, that is, there are great chances of not having the version on the intel website.

Does anyone have the compiled version of Delft3D or could you provide me with intel fortran 11 or 11.1?

RE: Error in RGFGRID ver. 6.03.00.66818 GUI 4.04.02

2022-10-24T20:26:55Z

I didn't think it could be like this

RE: WAQ manual reference

2022-10-24T20:26:24Z

I didn't think it could be like this

fatal error: sys/sysctl.h

2022-10-11T21:55:33Z

1	Hello everyone, I am trying to compile Delft3d on ubuntu 20 and I have the following error:
2	meminfo.cpp:3:10: fatal error: sys/sysctl.h: No such file or directory
3	I can't find a way to solve it, could you help me please
4
5	Thank you very much for your time