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Numerical simulation of the side launching of a ship

Jong, P. de (2004) Numerical simulation of the side launching of a ship. Master's Thesis / Essay, Mathematics.

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Abstract

The objective of this project is to create and validate a program which can predict the path of a rectangular ship being side launched in two dimensions on the basis of real life parameters (the geometry and mechanical characteristics of the slopes, canal and ship like the mass, moment of inertia and friction coefficients). A workable version of a program which can predict the path in three dimension will be presented without validation (a future project will perform this). The mathematical model incorporated into the program consists of a dry part (describing the situation, forces, momenta on the quay) and a wet part (describing the motion and reaction of the water). The dry part is based on the research of Chr. M. van Hooren [8]. Van Hooren compared his theory with a large number of model experiments, which were designed by J. Versluis [10]. The water reaction forces and momenta in his mathematical model were calculated using a simplified hydrodynamic model from Ir. J. H. Vugts [11]. Nowadays, with the increase in processor speeds and memory sizes and improvement of the numerical algorithms, the hydrodynamic part of the mathematical model can be computed with more accuracy using software like ComFlo, which is able to simulate two and three dimensional fluid flows with free surfaces. It is based on a finite volume method. In order to let ComFlo predict the path of a ship being side launched, a modular shell (or rind) is created around the original ComFlo code. By evaluating forces and momenta and using a time integration method the computer program is able to calculate a ship’s path in full interaction with the water.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Mathematics
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:28
Last Modified: 15 Feb 2018 07:28
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/8375

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