FLARE Benchmark Study - Flooding Fundamentals

Ship reference: FLARE simplified geometries

 

Ship information:

- Box with tween deck for up and down flooding

- Part of a deck of a large cruise ship (scale 1:60)

Data provided by:

MARIN & NAPA

Funded by EU Horizon 2020 project FLARE (814753)

https://flare-project.eu/

Definition data:

- Drawings

- Discharge coefficients (evaluated experimentally at MARIN)
Test cases:

3 different flooding cases with captive models (fixed floating position):

- Up flooding in a box with opening in the tween deck

- Down flooding in a box with opening in the tween deck

- Progressive flooding on the deck arrangement of a large cruise ship

Experimental data:

- Floodwater levels at several locations

Enclosed documents:

- Conference paper describing the benchmark cases and results from the FLARE project

- Instructions document

- Drawings of compartments, openings, and water level sensor locations

- Measurement data (csv)

- Videos

Contacts for additional information:

Pekka Ruponen

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +358-50-5766078

 

Click here to download the archive of data...

FLARE Benchmark Study - Damaged Cruise Ship

Ship reference: FLARE Cruise Ship

 

Ship information:

Large cruise ship (scale 1:60)

Model dimensions:

- Length: 5.0m

- Breadth: 0.587 m

- Draft: 0.137 m

Data provided by:

MARIN & NAPA

Funded by EU Horizon 2020 project FLARE (814753)

https://flare-project.eu/

Definition data:

- Hull form (iges)

- Drawings

- Roll decay test results

- Discharge coefficients (evaluated experimentally at MARIN)

- Undisturbed wave elevation for test case in beam seas

Test cases:

3 different scenarios:

- Transient flooding in calm water

- Transient and progressive flooding in beam seas (capsize case)

- Progressive flooding in calm water

Experimental data:

- Ship motions (6-DOF)

- Floodwater levels in several compartments

Enclosed documents:

- Journal article describing the benchmark cases and results from the FLARE project:

https://doi.org/10.1016/j.apor.2022.103403

- Instructions document

- Hull geometry (iges)

- Drawings of compartments and openings

- Water level sensor locations

- Measurement data (csv)

- Videos on tests

Contacts for additional information:

Pekka Ruponen

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +358-50-5766078

 

Click here to download the archive of data...

GustoMSC-Offshore-Stability

 

Reference: GustoMSC – Offshore Stability - Jack-up & Semi-sub data

 

Structure  information

1 Jack-up:

 

This jack-up was originally found in a publication of ABS and is purely a schematic shape not a copy of a real design.

 

Reference:

Breuer, J.A. and Sjöland, K.G., 2006, “Orthogonal Tipping in Conventional Offshore Stability Evaluations”,

Proceedings of the 9th International conference on Stability of Ships and Ocean Vehicles (STAB 2006).

 

2 Semi submersible:

 

This semi submersible is found in a publication of GustoMSC and is purely a schematic shape not a copy of a real design.

 

Reference:

Santen, JA van, The use of energy build up to identify the most critical heeling axis direction for stability calculations for floating offshore structures, STAB 2009 Conference St Petersburg

 

Hull geometry data

·   Plan of form as found in the ABS and GustoMSC publications

·   3D hull form (Rhino+IGES, kindly prepared by Gabriele Bulian)

 

For the semi submersible take care to have a proper width for the damaged compartment of 6 m instead of 7 as found in an earlier version of the publication

Loading condition(s)

One draught, one KG intact and damaged

Numerical data

Calculation of the righting arms for various cases defined by axis direction and calculation method.

Enclosed documentation

1.  Santen, J.A., The use of energy build up to identify the most critical heeling axis direction for stability calculations for floating offshore structures, review of various methods, 12th Jack Up Conference 2009, City University, London

2. Results with GustoMSC’s program DAMAST

Contact(s) for additional information/data

For any request of information please contact:

 

JA van Santen:

·         e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

·         Phone: +31 10 2883 824

 

F Blaauw

·         e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

·         Phone: +31 10 2883 852

 

Common address:

GustoMSC

PO box 687

3100AR Schiedam

The Netherlands

 

Click here to download the archive of data...

Aalto University & NAPA: Flooding model test for ITTC benchmark study (ITTC-Box)

 

 

Ship reference: ITTC-Box (Aalto University & NAPA)

 

Ship information

Box-shaped barge (nominal scale 1:10)

Model dimensions:
- Length: 4.0 m
- Breadth: 0.80 m
- Draft (in tests) 0.50 m

Used for the ITTC benchmark study in 2007

 

Data provided by:

Napa Ltd & Aalto University, Finland
Funded by: Napa Ltd and Tekes (the Finnish Funding Agency for Technology and Innovation)

 

Definition data:

- Hull form and compartments in: Rhino 3dm format (v.4 and v.5), iges-format

- NAPA database with definitions of hull and internal compartments

- Detailed document with all dimensions and discharge coefficients for the openings

 

Experimental data:

4 different flooding scenarios, measurement data includes:

- Roll, pitch and heave motions

- Water levels in all flooded compartments

- Air pressures in the double bottom compartments

 

Enclosed documentation:

Ruponen, P., Sundell, T., Larmela, M. 2007. Validation of a simulation method for progressive flooding, International Shipbuilding Progress, Vol. 45, pp. 305-321.

Ruponen, P. 2006. Model tests for the progressive flooding of a box-shaped barge, Report M-292, Helsinki University of Technology, Ship Laboratory.

Data sheet for the original ITTC benchmark study:
- instructions for interpreting the provided measurement data
- detailed information on the geometry of the barge and the flooded compartments

      

Contact(s) for additional information

Pekka Ruponen
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +358-50-5766078

 

Click here to download the archive of data...

Report NSWCCD-50-TR-2005/027

 

Ship reference: Model 5613

 

Ship information

Notional combatant hull - Model 5613, with three topside shapes, all for the same underwater form.

 

Main characteristics:

Length between perpendiculars: 154m

Draft: 5.5 m

Beam: 18.8m

Displacement: 8790 tonnes

Data provided by

The distributed data are the results from an experimental campaign carried out by the David Taylor Model Basin (NSWC/CD), West Bethesda, MD, USA.   The work was sponsored by US Navy’s Office of Naval Research.

Hull geometry data

Three dimensional hull form and bilge keels data.

File formats: 3DM and IGES

Loading condition(s)

One draught, two GM values (plus two spans for bilge keels)

Experimental data

·     Model scale 1:32.

·     Roll decay tests.

·     Tests in regular waves, 3 relative headings, several speeds.

Enclosed documentation

1.       Bishop, R.C., Belknap, W., Turner, C., Simon, B., Kim, J.H., "Parametric Investigation on the Influence of GM, Roll Damping, and Above-Water Form on the Roll Response of Model 5613", Naval Surface Warfare Center, Hydromechanics Department Report NSWCCD-50-TR-2005/027, August 2005

Additional information

 

Contact(s) for additional information/data

For any request of information please contact:

 

Arthur M. Reed

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +01-301-227-4309

Carderock Division, Naval Surface Warfare Center

Code 504

9500 MacArthur Boulevard

West Bethesda, MD  20817-5700

USA

 

William F. Belknap

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +01-301-227-5937

Carderock Division, Naval Surface Warfare Center

Code 5500

9500 MacArthur Boulevard

West Bethesda, MD  20817-5700

USA

 

Click here to download the archive of data...

Report NSWCCD-50-TR-2008/040

 

Ships reference: Model 5514 / Model 5613

 

Ships information

Model 01: Pre-contract DDG-51 - Model 5514

Main characteristics:

·         Length: 142m ;  Draft: 6.51 m ; Volume: 9146 m3

 

Model 02:  ONR tumblehome (ONRTH) - Model 5613

Main characteristics:

·         Length: 154m ; Draft: 5.5 m ; Volume: 8543 m3

Data provided by

The distributed data are the results from a computational experimental campaign carried out by the David Taylor Model Basin (NSWC/CD), West Bethesda, MD, USA.  The work was sponsored by the US Navy’s Naval Sea System Command (NAVSEA) PMS 500.

Hull geometry data

Three dimensional hull forms (bare hull).

File formats: IGES

Loading condition(s)

One loading condition for each model

Numerical data

Comparative analysis of several existing computer codes in their ability to calculate potential flow forces and moments acting on hulls in motions that range from small to large. Several potential flow programs were selected to compute the forces and moments exerted on bodies undergoing various prescribed motions. The flow configurations ranged from a regime where linearity might be sufficient to regimes where nonlinearities are expected to be important. Code runners, in most cases the code developers, were assigned well-defined tasks of three types:

one where the ship undergoes 1-DOF prescribed oscillations in calm water (task 1, the radiation problem), one where the ship advances with zero degrees of freedom at a fixed forward speed in waves (task 2, the diffraction problem), and one where the ship undergoes hybrid 2-DOF prescribed motion in waves (task 3, the nominal wave contouring problem). Each task assigned to a code runner required the computation to be done for two speeds and two models scaled to full size.

Enclosed documentation

1.       Telste, J.G., Belknap, W.F., "Potential Flow Forces and Moments from Selected Ship Flow Codes in a Set of Numerical Experiments", Naval Surface Warfare Center, Hydromechanics Department Report NSWCCD-50-TR–2008/040, May 2008

Additional information

  

Contact(s) for additional information/data

For any request of information please contact:

 

Arthur M. Reed

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +01-301-227-4309

Carderock Division, Naval Surface Warfare Center

Code 504

9500 MacArthur Boulevard

West Bethesda, MD  20817-5700

USA

 

William F. Belknap

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone: +01-301-227-5937

Carderock Division, Naval Surface Warfare Center

Code 5500

9500 MacArthur Boulevard

West Bethesda, MD  20817-5700

USA

 

Click here to download the archive of data...

 

Benchmark&Validation data

Model scale, and very rarely full scale, tests represent key information for checking numerical prediction tools for intact and damage stability assessment. A lot of data are available in the literature. However such data are often spread around and their collection is often a time-consuming process. This is particularly true for geometrical data of the hull forms, which are seldom published in detail.

 

Having this in mind, this section is intended as a repository of benchmark & validation data where hull form geometry and experimental / numerical data can be downloaded from.

 

Of course we are looking forward to receive new data. If you have a set of data you consider could be suitable for being added to the database, and if you want to share them with the community, please contact us.

 

List of available data (last update 2022/11/16):

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