Dynamic ship response integration for numerical prediction of squat in highly restricted waterways
✍ Scribed by N. Alderf; E. Lefrançois; P. Sergent; P. Debaillon
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 334 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0271-2091
- DOI
- 10.1002/fld.2194
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✦ Synopsis
Abstract
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.