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General Committees
Ocean Engineering Committee Note: The Ocean Engineering committee
covers moored and dynamically positioned ships and the modeling and simulation
of waves, wind and current. 1. Update the state-of-the-art for predicting
the behaviour of bottom founded or stationary floating structures including
moored and dynamically positioned ships and the modelling of waves, wind and
current in emphasizing developments since the 2005 ITTC Conference,
- Comment on the potential impact of new developments on the
ITTC.
- Emphasize new experimental techniques and extrapolation methods
and the practical applications of computational methods to prediction and
scaling.
- Identify the need for R&D for improving methods of model
experiments, numerical modelling and full-scale measurements.
2. Review ITTC recommended procedures 7.5-02-07-01.1,
7.5-02-07-03.1, 7.5-02-07-03.2, 7.5-02-07-03.4 and 7.5-02-07-03.45.
- Determine if any changes are needed in the light
of current practice.
- Identify the requirements for new procedures.
- Support the Specialist Committee on Uncertainty
Analysis in reviewing the procedures handling uncertainty analysis.
3. Critically review examples of validation of prediction
techniques
- Identify and specify requirements for new
benchmark data.
- Outline a benchmark study using a simple
geometric form for the application of unsteady RANS codes to wave load
problems. The study should include validation against experimental data
4. Develop a new procedure for the validation of
frequency-domain codes predicting wave loads and responses of offshore
structures. The work should be carried out in co-operation with the Seakeeping
Committee, and should be based upon the review and update the work done by the
24th ITTC Ocean Engineering and Seakeeping Committees.
5. Develop a new procedure for the validation of time-domain codes predicting
wave loads and responses of offshore structures. The work should be carried out
in co-operation with the Seakeeping Committee.
6. Review scaling issues associated with multiple-scale model tests in which
some components become extremely small if proper geometric scaling is used.
7. Identify requirements and carry out a review of wind modelling in model
basins, including the physical modelling, simplified mathematical models and
flow code analysis. The review should include scaling problems; inhomogeneous
wind fields, turbulence, coherence, wind spectra, wind-induced motion damping,
and waves / wind interaction. |