RT bachelor thesis
T1 Tug Bollard Pull Test powered with a Voith Schneider Propeller by Computational Fluid Dynamics (CFD)
A1 Massó Duxans, María
A2 Construcciones Navales
K1 Construcción naval
AB In the design phase of the dimensioning process of a ship, it is difficult to beprecise about the thrust results in the propeller studies. The exact thrust that thepropeller will produce and the thrust that will be lost toe to the viscous forces is,nowadays, known only when the vessel is already built and the test of thrust ofthe boats, called bollard pull test, is performed.Thanks to the informatics development, the computational fluid dynamics isbringing betler results every day. The importance of numerical simulations invarious fields of application is by now widely accepted. There are in particularrelevant cases where experiments are too costly, too dangerous or evenimpossible when the process to be simulated is not even observable inexperiments. Therefore computational fluid dynamics (CFD) simulations it is aneconomic and reliable way to determinate the boat capacities before itsco nstructio n.This study is focused in simulating the bollard pull test of a concrete tug, checkthe results and from there analyse the zone requirements from theClassification Societies. These Societies made studies to determinate therequirements of the zone for the bollard pull test performance of boats withregular propellers (screw propeller), but it is not the only kind of existentpropellers. In this study many simulations of a tug with a Voith SchneiderPropeller will be run and analysed. The effect that makes the characteristics ofthe zone where the test have to be performed will be studied. Also therequirements of the Classifications Societies will be simulated for this tug withthe VSP.After analysing and comparing all the simulations results, possible requirementsfor the bollard pull test zone for boats with a VSP will be suggested.
YR 2015
FD 2015-10-15T00:00:00Z
LK http://hdl.handle.net/10498/17759
UL http://hdl.handle.net/10498/17759
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 20-may-2026