Pre & Post processing

RE: Background image

2021-08-12T19:16:22Z

Thank you Bert.<br />

RE: Error: refined grid in D-Flow Flexible Mesh

2020-09-28T10:31:16Z

Hi Dmitry,Thank you very much for your help. The solution was to create a new layer for each parameter and then the warning disappears.Best regards,Francisco

RE: Error: refined grid in D-Flow Flexible Mesh

2020-09-25T15:01:29Z

Hi Francisco,
I've found this D-Flow FM 2019 release notes:
https://www.deltares.nl/app/uploads/2019/02/Release-notes-Delft3D-FM-Suite-2019.pdf
See page 16:
D3DFMIQ-324Change the always existing warning about unspecified points to information
So, I guess this message will be always shown, irrespective of the model settings.
Nonetheless, this is just my speculations on the problem You might want to contact Deltares support team for the detailed explanations.
Regards,
Dmitry

Error: refined grid in D-Flow Flexible Mesh

2020-09-24T13:43:18Z

Hi everyone,

I am a user of Delft3D Flexible Mesh and I need to build a refined grid in order to draw five detached breakwaters. My question is how refined can my grid be in order to avoid this error, "FlowFM: Roughness contains unspecific points, the calculation kermel will replace these with default values". I already saw some possible solutions to solve this problem. Therefore, I merged circumferences but it will make my grid less refined... I will show you my case study so that you can understand what I mean.

This is the error on the image "01_Error".

This is my case study, located in Oporto, Portugal (Image "02_CaseStudy").

These are detached breakwaters under study. My main goal is to study the morphodynamic near these five detached coastal protection structures (Image "03_Breakwaters").

As you can see on the following image, the grid zone where breakwaters are going to be implemented is too refined. I am afraid that FM does not support this high resolution (Image "04_RefinedGrid").

I would like to know what can I do to make this study well and solve the problems I mentioned above.

Thank you very much.

RE: Wrong with Nesting

2020-09-08T17:07:05Z

I know this is old, but perhaps others are struggling with the error. Line 6 must be deleted out of your grid file. It is a line about missing values. "Missing Value = 0.00000000000000000E+00"

RE: Landboundary file MATLAB

2020-09-07T08:14:21Z

Maybe tomorrow, when the two of us don’t laugh and talk like before.
Who and who? Or do you give up that victory to me. 1v1 lol love tester

Problem exporting shape of flexible Grid with Quickplot

2020-09-04T08:31:29Z

Hello everyone,
as the new Delft3Dfm Forum prevents me from creating new posts, I post my Question here...hope that is ok.
I created a flexible mesh _net.nc file using the 2019 version of Delft3D FM. I would like to project my grid with a Program like ArcGIS together with other spatial data relevant. There is the possibility using Quickplot to export ArcView shapes wich works fine with rectangular .grd files created with Delft 3D but for some reason I am unable to do so with the flexible mesh. I also tried using the OpenEarthToolbox with MATLAB, again opening Quickplot and exporting a shape but it returns the error "unknown variable "fv" " which is burried in the codes behind quickplot exporter.
Any idea how to fix that problem? I am not bound to use Quickplot, if there is a way to convert my _net.nc (also have a _map.nc) into a polygon-shape of some sort and not just xyz-points.
Maybe there is a OpenEarthToolbox function I am not aware of.
Thank you in advance,
Karoline

RE: Z-grid on WAQ module?

2020-08-22T02:46:09Z

I have a similar question. Is it possible to use z-model with particle traking?

Trachytopes and time varied roughness

2020-03-27T20:15:31Z

I am using trachytopes (formula 105) to simulate sediment transport (including morphology update) in a sand bed river where dunes are present. I tested different bedload formulas such as Van Rijn, Engelund-Hansen and Meyer-Peter-Muller (with and without trachytopes).
The Flow User Manual states that at every time step the trachytopes are converted into a representative bed roughness. After the simulations, I would like to inspect the updated roughness values at different time steps, but I don't know if that is possible.
The best I got was opening the 'com' file in QuickPlot and plotting space varied 'u roughness Manning n', but there is only one corresponding time step (I imagine it is the last time step). Does anyone have an idea about how can I check the "time-space" varied roughness values?

Gpp doesnt work when running flow tutorial

2020-03-24T18:39:20Z

Dear all, I'm not getting the right output and I don't know where is the problem, the mdf file, the compilation of D3D, GPP, something else. I installed D3D in a new laptop (I compiled it a couple of years ago). To try it, I ran the 'friesian_tidal_inlet' flow tutorial. Everything went smooth, set the mdf file, and pressed "start" in the hydrodyamics module. The program ran correctly, no errors no warnings.
Then I tried to use GPP as sugested in the tutorial, but the graphs are empty. What strikes my is that the axis of the time plots show correctly the time frame of the run, but when I export to a text file the different datasets, it only writes the first time interval.
I would appreciate any help on this issue to understand what is the problem. I spent some time on this and did not get anywhere!
On the other hand, I ran the same example as it was boxed from the original folder, and I can see the graphs correctly.
I attached the mdf file I processed, and a couple of files that I think may help to understand the problem. Many thanks in advance!
Jorge

GISView actualizations

2020-01-14T19:04:48Z

Dear Colleagues,

I wanna know if there is an actualization from GISView plugin that can be used on ArcMAp 10.3.

Regards,Lais

RE: GUU, GUV and GVV ERROR at boundary

2020-01-10T20:27:01Z

Probably you already solved the problem.
I recently had the same error message and solved it as follows:
I had made some changes to my .grd file and forgot to copy the .enc to the folder where I was running the model. So I was using an .enc that didn't match my .grd.

The solution was simple, I just opened the .grd with RGFGRID and saved it again, so a new .enc corresponding to .grd was also generated.

So, if someone have the same error message, check the .enc file !!! :-)

Regards,
Renan

RE: land boundary file

2019-11-15T15:30:13Z

Excellent my friend!!!!Thank you!!!!

RE: GUU, GUV and GVV ERROR at boundary

2020-01-10T20:27:01Z

Hello everyone

In the Windows version of FLOW, this problem will be solved when you add an enc. file.

The number of girds in my simulation is 385*324, applying a water-level boundary and a river discharge boundary.

Good luck

Z-grid on WAQ module?

2018-12-24T11:43:37Z

Hi all,

I've read a presentation from Delft Software Days (DSD-INT 2018), it was mentioned on a slide that Z-model is used on the model that is coupled with WAQ. As far as I know, there's a limitation on using Z-grid on DELWAQ module-as I read on the manual-. Is the limitation still on? Cause I need to use it on a Delwaq-model and don't know if it's possible. But it's used in the model related to this presentation.

link to presentation : https://www.slideshare.net/Delft_Software_Days/dsdint-2018-hydrodynamic-and-water-quality-modelization-of-cuerda-del-pozo-reservoir-castrillo

a clip of a slide of usage of z-grid is attached and a clip of the manual page mentioning the restriction on Z-model on WAQ module is also attached.

RE: reading output files without matlab

2018-12-24T08:38:39Z

hi, have you succeed in useing fortran and idl to turn delft3d-flow output files into netcdf or other file formats?

RE: reading water level from NEFIS file using vs_ matlab functions

2018-12-20T11:30:47Z

You can also use quickplot Matlab functions inside the Delft3D-Matlab tools:

trimfile=qpfopen('C:/......./trim.dat');

read_wl= qpread(trimfile, 'water level', 'data');

water_level=read_wl.Val;

RE: GUU, GUV and GVV ERROR at boundary

2020-01-10T20:27:01Z

Hello,

Are there any other know circumstances for this type of error message? I am running a coupled FLOW-WAVE simulation using domain decomposition, but my most recent adjustments resulted in many of these error messages:

*** ERROR Curvi-linear coefficient GVV at 2 35 = 0, while point is active
*** ERROR Curvi-linear coefficient GVV at 3 35 = 0, while point is active
*** ERROR Curvi-linear coefficient GVV at 4 35 = 0, while point is active... and so on

I am using FLOW trunk version 6.02.12.7430 on a linux machine. This only seems to happen for one of the domains, but I see nothing different about it. I'm happy to share any files if they'll be helpful. Thank you in advance!

- Josh

Importing irregular grid to QUICKIN

2017-06-29T18:41:35Z

Hello,

I am trying to import an irregular grid (net.nc) to QUICKIN to generate bathymetry. However, it seems like the program only allows me to import a regular grid (.grd). I tried converting the irregular grid to regular grid in RGFGRID but failed. I also tried to save the irregular grid as .grd but failed.

Is there a way to import an irregular grid into QUICKIN? I am using Delft3D 4.01.00.

Thank you in advance,

Arisa Ruangsirikulchai

Landboundary file MATLAB

2017-02-16T11:22:01Z

Hello everyone,
I am new user of Delft3D. I am trying to create a land boundary file of my area of interest. I have already drawn my ploygon in Google Earth. Now to convert it to an .ldb format i have installed the matlab and tried to download the open earth tools, kml2ldb.m using the link - https://svn.oss.deltares.nl/repos/openearthtools/trunk/matlab/
But when i click on the sub documents, I am getting something which seems to be a set of instruction which i need to convert to some computer language.
Can someone help me with what i should do next?

Thank you!