1.
Rob Prevel
Arthur van Dam
Erik de Goede
New features + Improvements
15 November 2022
Upcoming
Delft3D FM Suite 2023.01

2.
Contents
Front end (Rob)
• What’s new in the Delft3D FM Suite Graphical User Interface (GUI)
Back end (Arthur)
• What’s new in the computational back end of the Delft3D FM Suites
• Both 2D3D and 1D2D
• + outlook into 2023
Since Delft3D FM Suite release 2022.03, 1D2D and 2D3D follow the same release schedule
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3.
Delft3D FM Suite Front end / Graphical User Interface
Rob Prevel

4.
Front end (GUI)
Performance Robustness Usability Functionality
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*Main focus has been on 1D2D GUI plugins, however many of the performance and robustness improvements will also be experienced on 2D3D GUI plugins

5.
Front end (GUI): Delft3D FM Suite Performance
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Saving
Loading
Importing
Exporting
Rendering
(of the main map view)

6.
Front end (GUI): Delft3D FM Suite Robustness
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Critical exceptions
Memory leaks
Regularly updating external libraries:
• Bug fixes,
• Security threats,
• New and improved functionality
Data consistency and integrity
• Import / export
• Unknown data
• Rounding errors / Precision loss

7.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (1)
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Adjustments to ordering, grouping,
naming in the map tree view

8.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (2)
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Similarly in the project tree view

9.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (3)
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Better support
for copying &
pasting data
from external
programs

10.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (4)
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Re-designing existing views for
more accurate representation of
the data

11.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (5)
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Corrections for
misaligned and
truncated text
Sometimes fixing in
place, other times
replacing the view
entirely

12.
Front end (GUI): Delft3D FM Suite (1D2D) Usability (6)
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2023.01
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Improved error reporting, with more detail on specific
issues
Adjustments to default values, for more sensible
values
Removing or replacing old views, for newer look and feel

13.
Front end (GUI): Delft3D FM Suite (1D2D) Functionality (1)
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Adding importers for more flexibility
in adding data to models
(e.g.
• Importing Precipitation data from
csv files
• Adding support for .bc files in
addition to .tim files for 1D
structures
)

14.
Front end (GUI): Delft3D FM Suite (1D2D) Functionality (2)
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Adding importers for
visualization of results
(e.g. on NWRW catchments)

15.
Front end (GUI): Delft3D FM Suite (1D2D) Functionality (3)
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Adding of functionality that exists in SOBEK2
(e.g. user-defined time series generation)

16.
Front end (GUI): Delft3D FM Suite (1D2D) Functionality (4)
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Further alignment with the kernels
• Adding options that were already available in the kernel but
not in the GUI (such as using NodeID for storage node
locations)
• Removing options that are no longer supported (such as
the Gate opening height from RTC)

17.
Front end (GUI): Delft3D FM Suite (2D3D) developments in 2022
In 2022 no major front end developments for 2D3D modelling:
• DeltaShell GUI is available for 2D (depth-averaged) modelling for several years
• Model input for 3D modelling has be added manually (see Chapter 10 of User Manual)
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Impression of GUI for 2D modelling
FLOW-MOR-WAVE course model
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18.
Delft3D FM Suite Back end
Arthur van Dam

19.
1D2D modelling

20.
Delft3D FM Suite 1D2D
January 2022 we released the first General Availability (GA) release of
Delft3D FM Suite 1D2D for the Dutch market.
Available as a beta release for international applications.
The 1D model input has many similarities to the SOBEK representation of
networks as branches and connection nodes.
The computational back end is now D-Flow Flexible Mesh, same as for 2D3D,
so this greatly improves:
• 1D2D coupling possibilities
• Support for much larger models
• Faster calculations
Beta testers can also use the Delft3D FM Suite 1D2D abroad, please contact
us for usage hints.
(We are still expanding course material, to prepare for an international GA
release too.)
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21.
Modules in Delft3D FM Suite 1D2D
• D-Flow FM: 1D + 2D hydrodynamics
• D-Hydrology for lumped rainfall-runoff modelling
• D-Real Time Control for realtime triggering / operating
of hydraulic structures
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22.
Delft3D FM Suite 1D2D
Real-world application models
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23.
SOBEK comparison Limburg: discharge wave Roer 2019
Example of model validation in
Limburg.
Orange:
inundation in simulation, not in
real event
Magenta:
Inundation in real event, not in
simulation.
Blue:
inundation in both.
Based on aerial pictures
Delft3D FM 1D2D much better
than SOBEK 2 results.
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Delft3D FM 1D2D
Delft3D FM 1D2D
Delft3D FM 1D2D

24.
2D3D modelling
Excluded “Singularity”
(see earlier presentation today by Adri Mourits)

25.
Improved robustness sed+mor
Improved robustness for 2D sediment modelling:
• Crashes in 2D real-life models with sediments for releases
from 2021.04 till 2022.04
• Now solved in 2023.01 release
Update of Delft3D FM release for courses:
• Delft3D FM courses still use release 2021.03, because of
this robustness problem.
• With this new 2023.01 release, these courses will now
finally be upgraded to this new version soon!
25
FLOW-MOR-WAVE course model

26.
News from D-Water Quality
Water Quality modelling
• New approach for algae modelling (PROTIST),
considering mixotrophic algae and protozoans.
• Particle modelling
Delft3D-PART functionality for unstructured grids (D-Flow FM)
with updated GUI (beta functionality)
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Particle tracks in Hong Kong area
particles moving smoothly over
(coarse) unstructured grid
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And in regular hydrodynamics?
• Over 200 bugfixes and minor improvements, ongoing 3D work.
• Also worth mentioning again: our releases on HPC Linux using Singularity containers (earlier talk by
Adri Mourits).
• Improved documentation of obsolete/changed input keywords:
27
** ERROR : While reading 'test.mdu': keyword [geometry] bedlevelfile is
no longer supported.
** ERROR : While reading 'test.mdu': Old unsupported keywords used:
Check Section "Overview of deprecated and removed keywords" in the
User Manual for information on how to update the input file.

28.
Planned for 2023
• D-Morphology (2D)
Improved method for Exner equation
• D-Waves
Improvements (see separate slide)
• D-Flow FM: Thermobaricity
Include pressure effects on salinity and temperature
stratification and circulation
in deep lakes
• D-Flow FM: Ice modelling on flexible mesh
− Only ice melt and growth (for lakes)
− No horizontal transport yet
• D-Flow FM – D-Morphology (3D)
Robust and accurate 3D sediment modelling, which is
currently not the case
(NB. No problems yet for salinity and temperature in 3D)
• D-Flow FM: 1D2D Parallel version (MPI)
Familiar functionality of 2D3D now also for 1D2D
• D-Flow FM: Purely 1D solver
Upcoming
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Ice thickness Lake IJssel at 16-1-97 with Delft3D
Temperatures at large depths

29.
Planned for 2023: D-Waves: Full support of non-stationary waves
• Feed input to SWAN for the full computation domain
• Keep SWAN up and running
Advantages:
1. Higher accuracy
2. Faster computation
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30.
Delft3D FM Beta testing programme
For many years already, several of you have helped us
improving our software by beta testing early functionality and
collaborating in research project.
A sincere THANK YOU is in place!
And the beta testing programme continues.
Let us know if you’re interested in collaborating on some of
our beforementioned new plans and also if you have
additional ideas.
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31.
info@deltares.nl
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www.deltares.nl
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