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