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ITTC Welcome to ITTC The International Towing Tank Conference is a voluntary association of worldwide organizations that have the responsibility for the prediction of the hydrodynamic performance of ships and marine installations based on the results of physical and numerical experiments
ITTC – Recommended 7. 5-02 -03-01. 1 Procedures and Guidelines Given the technical evolution, the ITTC Recommended Procedures and Guidelines are checked reg- ularly by the relevant committee and updated when necessary It is therefore important to always use the latest version
Proceedings ISSN 2789-0872 - ITTC 22nd Conference (Seoul Shanghai 1999) Proceedings of the 22nd ITTC Conference, held in Seoul and Shanghai during 1999 Find out more »
Fresh Water and Seawater Properties - ITTC The sensitivity coefficients are also provided so that the uncertainty in the property may be computed from the uncer-tainty in temperature per the 25th ITTC proce-dure on uncertainty analysis
ITTC – Recommended Procedures and Guidelin When the model appendage resistance is separated from the total model resistance, as described as an option in the ITTC Standard Procedure 7 5-02-02-01, the full scale ap-pendage resistance needs to be added, and the formula for total resistance (with bilge keels) becomes:
ITTC – Recommended 7. 5 – 02 - 03 – 01. 4 Procedures and Guidelines Page 1 When the model appendage resistance is separated from the total model resistance, as de-scribed as an option in the ITTC Standard Pro-cedure 7 5-02-02-01, the full scale appendage resistance needs to be added, and the formula for total resistance (with bilge keels) becomes:
History of ITTC At the 24th Conference held in Edinburgh in 2005, a major revision of the ITTC rules was adopted Among others, ITTC introduced a general membership fee to cover running costs of the secretariat A list of past International Towing Tank Conferences, as well as the proceedings, can be found here
ITTC – Recommended Procedures and Guidelines Page 1 of The model should be manufactured accord-ing to the ITTC Recommended Procedure 7 5-01-01-01, Ship Models with particular attention being paid to model manufacturing tolerances, surface finish, appendage manufacture, and the size and positioning of turbulence stimulation
ITTC – Recommended Procedures and Guidelines Page 1 of Note that in the calculation above, CF should be calculated using the full length of the ship which in the approach gives an approxima-tion to mean value of the local CF The ITTC model-ship correlation line should only be used in this estimate
Uncertainty Analysis: Instrument Callibration - ITTC ITTC (1999) describes calibration methods and documentation Uncertainty analysis is based upon JCGM (2008) with specific application to naval hydrodyanics by ITTC (2014a)