Optimization of ships in shallow water with viscous flow computations and surrogate modeling

Conference paper (2016)

Authors

E. Rotteveel Ship Design, Production and Operations - Mechanical, Maritime and Materials Engineering
A van der Ploeg Maritime Research Institute Netherlands (MARIN)
R.G. Hekkenberg Ship Design, Production and Operations - Mechanical, Maritime and Materials Engineering
Research Group
Ship Design, Production and Operations (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2016 E. Rotteveel, A van der Ploeg, R.G. Hekkenberg
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Published Date

2016

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Marine and Transport Technology

Research Group

Ship Design, Production and Operations

Abstract

Shallow water effects change the flow around a ship significantly which can affect the optimum design of the hull. This paper describes a study into the optimization of the aft ship region for various water depths. The research focuses on variations of the following parameters of a hull form: The athwart ship’s propeller location, the tunnel top curvature, the flat-of-bottom shape in the stern region and the stern bilge radius. All hull form variants are valuated in 3 different water depths using a viscous flow solver, and a surrogate model is created for each water depth. Pareto plots are used to present the trade-off between the optimization for one or another water depth. Finally, specific hull forms are chosen and the differences in flow behavior among hull forms and water depths are explained.

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