BenchmarkingData

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...

 

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...

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):

CEHIPAR2792-UNITS

 

Ship reference: CEHIPAR2792 (UNITS)

 

Ship information

Ship intended to be used for the purpose of GEOSIM experiments.

Main characteristics:

Length: 205.7m

Draught: 6.6m

Breadth (at 6.6m): 29.9m

Volume: 24094m3 (from 3D model)

Data provided by

University of Trieste through European Community's Sixth Framework Programme through the grant to the budget of the Integrated Infrastructure Initiative HYDRALAB III, Contract no. 022441 (RII3)

Hull geometry data

·   3D hull form (formats: 3DM, IGS)

·   Offset data

·   CAD data of bilge keels

 

Loading condition(s)

One draught, two GM with and without bilge keels

Experimental data

·     Roll decay tests

·     Regular beam waves tests

All experiments carried out with three different model scales: 1:33, 1:50 and 1:65

Enclosed documentation

1.         Bulian, G., Francescutto, A., Fucile, F., "Determination of Relevant Parameters for the Alternative Assessment of Intact Stability Weather Criterion On Experimental Basis", EU-funded Project HYD-III-CEH-5 (Integrated Infrastructure Initiative HYDRALAB III, Contract no. 022441 (RII3)), Department DINMA, University of Trieste, Trieste, Italy, 22 November 2009

2.         Bulian, G., Francescutto, A., Fucile, F., "An Experimental Investigation in the Framework of the Alternative Assessment for the IMO Weather Criterion", Proceeding of the Hydralab III Joint Transnational Access User Meeting, Hannover, February 2010, Edited by Joachim Grüne & Mark Klein Breteler, Published by Forschungszentrum Küste (FZK) of University Hannover & Technical University Braunshweig, Hannover, February 2010, pp. 251-254 (ISBN-978-3-00-030141-4)

Additional information

Raw experimental data are available on request.

Contact(s) for additional information/data

For any request of information please contact:

 

Prof. Alberto Francescutto:

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

·         Phone: +39-040-558-3425

 

Dr. Gabriele Bulian:

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

·         Phone: +39-040-558-3444

 

Common address:

Dept. of Engineering and Architecture

University of Trieste

Building C5

Via A. Valerio, 10

34127 Trieste

Italy

 

Click here to download the archive of data...