Numerical Prediction of Wave Patterns Due to Motion of 3D Bodies by Kelvin-Havelock Sources

Author:

Ghassemi Hassan1,Ghamari Isar2,Ashrafi Arash3

Affiliation:

1. Faculty of Maritime Engineering AmirKabir University of Technology Hafez Ave., Tehran, Iran (Islamic Republic of)

2. Ph.D., Department of Marine Technology Norwegian University of Science and Technology (NTNU) Trondheim, Norway

3. Faculty of Maritime EngineeringAmirKabir University of Technology Hafez Ave., Tehran, Iran (Islamic Republic of)

Abstract

Abstract This paper discusses the numerical evaluation of the hydrodynamic characteristics of submerged and surface piercing moving bodies. Generally, two main classes of potential methods are used for hydrodynamic characteristic analysis of steady moving bodies which are Rankine and Kelvin-Havelock singularity distribution. In this paper, the Kelvin- Havelock sources are used for simulating the moving bodies and then free surface wave patterns are obtained. Numerical evaluation of potential distribution of a Kelvin-Havelock source is completely presented and discussed. Numerical results are calculated and presented for a 2D cylinder, single source, two parallel moving source, sphere, ellipsoid and standard Wigley hull in different situation that show acceptable agreement with results of other literatures or experiments.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Ocean Engineering

Reference26 articles.

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3. 3. Newman, J. N., “Evaluation of the wave-resistance Green function, Part 2-the single integral on the centerplane”, Journal of Ship Research, 31(3), 1987b, pp.145-150.

4. 4. Chen, C. Y. and Noblesse, F., “Comparison between theoretical predictions of wave resistance and experimental data for the Wigley hull”. Journal of Ship Research, 27, 4, 1983, pp.215-226.

5. 5. Telste, J. G. and Noblesse, F., “The non-oscillatory nearfield in the Green function for steady flow about a ship”, Proceeding 17th Symposium of Naval Hydrodynamics, The Hague, 1988, 39-52.

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