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Conference paper

Hydroelastic Solutions using a High-order Finite Difference Method on Overlapping Grids

By Zhou, Baoshun1,2; Amini-Afshar, Mostafa1,2; Bingham, Harry B.1,2; Shao, Yanlin1,2

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Fluid Mechanics, Coastal and Maritime Engineering, Department of Civil and Mechanical Engineering, Technical University of Denmark1

Department of Civil and Mechanical Engineering, Technical University of Denmark2

This work is part of the ongoing implementation of generalized modes for ship hydroelasticity inside the OceanWave3D-seakeeping solver. The solver has been developed by the Maritime Group at DTU- Civil & Mechanical Engineering based on solving the linearized potential flow problem using a high-order finite difference method on overlapping grids.

The focus of this paper is a comparison between the hydroelastic solutions obtained using two different implementations of the hydrostatic restoring force coefficients. The first hydrostatic model is according to Newman [1], and the second model is based on Malenica and Bigot [2]. These two hydrostatic models agree for the rigid modes, but are slightly different for the flexible modes.

The results are validated using both numerical and experimental solutions for two different ship geometries at zero forward speed.

Language: English
Year: 2022
Proceedings: 9th International Conference Hydroelasticity in Marine Technology
Types: Conference paper
ORCIDs: Zhou, Baoshun , Amini-Afshar, Mostafa , Bingham, Harry B. and Shao, Yanlin
Keywords

Finite difference methods Generalized modes Hydroelastics Hydrostatic models Ships

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