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Dynamic ship response integration for numerical prediction of squat in highly restricted waterways
Author(s) -
Alderf N.,
Lefrançois E.,
Sergent P.,
Debaillon P.
Publication year - 2011
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.2194
Subject(s) - squat , marine engineering , position (finance) , flow (mathematics) , stability (learning theory) , set (abstract data type) , modular design , computational fluid dynamics , engineering , computer science , mathematics , geometry , aerospace engineering , physiology , finance , machine learning , economics , biology , programming language , operating system
In this paper we are interested in numerical modeling of ‘dynamic’ phenomenon of squat by finite elements analysis. It proposes a set of modular numerical tools; therefore, interchangeable. This model enables the study of the interaction between a two‐dimensional potential flow in highly restricted waterways on irregular shaped bottom with stationary free surface in taking into account the dynamic response of a ship. The proposed model has been used to validate a stability model based on the extension of the one‐dimensional theory of Schijf to the dynamic effects by pointing out stable and unstable squat positions for a ship. It is also shown that for two cases of depth change in shallow water (‘step’), unstable position may be reached. Copyright © 2009 John Wiley & Sons, Ltd.