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Model Testing for Ultradeep Waters

AuthorsStansberg, C.T., Karlsen, S.I., Ward, E.G., Wichers, J.E.W., Irani, M.B.
Conference/JournalOffshore Technology Conference (OTC), Houston, Texas, USA
Date1 mei 2004
Model test procedures for global analysis verification of floating production systems in ultradeep waters are reviewed. Due to space limitations in wave basins, a combination of tests at reduced depths with advanced numerical tools is recommended. Guidelines for this approach are presented. The philosophy is that a numerical model of the truncated set-up is validated against the tests, and resulting calibration information is then applied in full-depth verification simulations. Principles for design of truncated systems are given, where the key motivation is to reproduce the full-depth system properties as closely as possible. A priority list with criteria for this purpose is given and discussed. Coupled analysis is recommended for numerical reconstruction of experiments. Key topics in this "model-the-model" procedure, and of the final prototype simulations, are discussed. 

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