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IJME 249

Paper title: Analysis of the Water Impact of Symmetric Wedges with a Multi-Material Eulerian Formulation

 

Authors

S Wang and C Guedes Soares. Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, Technical University of Lisbon, Portugal

Summary 

The two-dimensional hydrodynamic problem of a symmetric wedge vertically impacting in calm water is analysed by using an explicit finite element method based on a multi-material Eulerian formulation. The slam-induced loads on wedges with different deadrise angle at a constant velocity are calculated, including pressure distribution, maximum pressure coefficient, force coefficient and time history of vertical force, which are compared with available theoretical and analytical results. The time evolution of pressure distribution and free surface elevation are presented. Furthermore, the effects of impact velocity are investigated. It shows that this method is capable of predicting the local slamming loads, and as well assessing the effects of the deadrise angle and the impact velocity on the slamming pressure for the wedge-shape section.

Reference

Transactions RINA, Vol 154, Part A4, International Journal Maritime Engineering, Oct-Dec 2012 

DOI Number

DOI No: 10.3940/rina.ijme.2012.a4.249

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