Presentation by Matthias Hammer, Federal Institute of Hydrology, Germany, at the Delft3D - User Days (Day 1: Hydrology and hydrodynamics), during Delft Software Days - Edition 2018. Monday, 12 November 2018, Delft.

1. Investigation of optimization
options for polder flooding at
the Lower Havel River with
Delft3D Flexible Mesh SuiteMatthias Hammer,
Federal Institute of Hydrology
Department M2:
Wasserhaushalt, Vorhersagen
und Prognosen
Delft Software Days - Edition 2018
Hydrodynamics in rivers, 12.11.2018

2. 1.Federal Institute of Hydrology
2.Investigation area
3.Investigation points
4.D-Flow FM Model Havel (Rathenow – Gnevsdorf)
5.Outlook
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

3. • 1902 Preußische Landesanstalt für Gewässerkunde, Berlin
• 1948 Forschungsanstalt für Gewässerkunde, Bielefeld
• 1949-1952 Bundesanstalt für Gewässerkunde, Koblenz
380 employees (11.2018)
Bundesanstalt für Gewässerkunde
Federal Institute of Hydrology
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

4. Unesco Center, Leadership and Controlling
M: Quantitative hydrology
G: Qualitative hydrology
U: Ecology
Z: Central service
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Organization chart
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

5. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Investigation area
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

6. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Investigation area
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

7. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Investigation area
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

8. Contractor:
Ministry of Rural
Development,
Environment and
Agriculture of the State
of Brandenburg
And
Federal Institute of
Hydrology
Working Group:
The federal states of Mecklenburg-Western Pomerania, Lower Saxony, Saxony-Anhalt, Schleswig-Holstein, the Federal
Waterwaysand Shipping Administration and the Quitzöbel Coordination Centre
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Investigation
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

9. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Most of the Polder areas do not have any inlet or outlet
structures.There's the need of hydraulic excavators to create
gaps into the dikes
to fill the polders
Question:
1. best location
and
2. best dimension
of a dike opening
for optimal flooding?
Investigation points
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

10. Normal Situation (flow direction)
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

11. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Flood Situation (flow direction)
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

12. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Simulation Water level
inside Polder Warnau HW2013
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

13. DeichbreschenDike opening parts
Reference state 4 Dike opening parts a 40m width
Opening width reduction4 Dike opening parts a 30m width
Opening width increase 4 Dike opening parts a 50m width
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Dike opening width
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

14. Observed waterlevel
inside Polder Warnau
Simulated reference
state (40 m) waterlevel
Simulated increased opening
parts (50 m) waterlevel
Simulated decreased opening
parts (30 m) waterlevel
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Dike opening width
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

15. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Physical model
Physical model study by RWTH Aachen
Flow at dike opening area
Scale 1: 7.5
Flow through dike opening with
original material
Scale 1:1
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

16. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Havel Estuary
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Controlling the weirs Neuwerben and Quitzöbel decide about
the effectiveness of retention
Question:
Is an optimization
of the Control rules
of the system
possible?
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

17. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Normal Situation (flow direction)
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

18. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Flood Situation (flow direction)
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

19. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Flood Situation (flow direction)
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Gauge Albertsheim
Measure
Gauge Albertsheim
Simulation
Gauge Havelberg
Measure
Gauge Havelberg
Simulation

20. Havel+ Elbe (Rathenow-Gnevsdorf and
Tangermünde-Geesthacht)
1.336.724 Elements
• Havel (Rathenow-Gnevsdorf) 596.168
• Elbe (Tangermünde-Geesthacht) 747.235
Area :880 km2
Riverine length 260 km
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Computing network
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
+ =

21. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Computing network
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Element Edges length
Main channel
≤ 35 m
Floodplain
≤ 65 m
Model border area
≤ 250 m

22. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Uncertainty and suitability
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
72% of the water level differences are less than 10 cm in the validation
(HQ) event for stationary simulations
W
simulation W measured Gauge W – difference ( simulation – observed)
Polder inflow area

23. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Early results Elbe-Havelpoldermodel
Discharge Havelpolder area
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Gauge Albertsheim
Measure
Gauge Albertsheim
Simulation
Gauge Havelberg
Measure
Gauge Havelberg
Simulation

24. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Early results Elbe-Havelpoldermodel
Waterlevel Havelpolder area
Observation
Observation
Observation
Observation
Observation
Observation
Observation

25. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Early results Elbe-Havelpoldermodel
Waterlevel crest Havelpolder area
W – Observation, HW 2013W – Simulation, HW 2013 W – Difference, HW 2013

26. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Early results Elbe-Havelpoldermodel
Waterlevel Polder Warnau
W – Observation, Polder Warnau W – Simulation, Polder Warnau

27. Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite
Early results Elbe-Havelpoldermodel
Volumerate Polder Warnau
Flow – Observation, Polder Warnau Flow – Simulation, Polder Warnau

28. Geesthacht
Gnevsdorf
Tangermünde
Berlin
Untere Mittelelbe
Havelpolder
Havelstauregime
Delft Software Days - Edition 2018, Hydrodynamics in rivers, 12.11.2018
Outlook
Agenda
Federal Institute of Hydrology
Investigation area
Investigation points
D-Flow FM Model Havel
Outlook
A suitable D-Flow FM Model was created for investigations on
the optimization of locations and geometry of polderdyke
openings as well to study the control rules of the structures
Neuwerben and Quitzöbel
This model will be coupled
with another model of the
Havel between Berlin and
Rathenow, in order to do
further investigations
Concerning the retention
effects of the
Elbe-Havel area
Investigation of optimization options for polder flooding at the Lower Havel River with Delft3D Flexible Mesh Suite

29. Thank you for your
attention
Matthias Hammer
Department M2
Federal Institute of Hydrology
Am Mainzer Tor 1
56068 Koblenz
Tel.: 0261/1306-5384
Fax: 0261/1306-5280
E-Mail: Hammer@bafg.de