### Skapa referens, olika format (klipp och klistra)

**Harvard**

Eliasson, S. och Olsson, D. (2011) *Barge Stern Optimization Analysis on a straight shaped stern using CFD*. Göteborg : Chalmers University of Technology (Report. X - Department of Shipping and Marine Technology, Chalmers University of Technology, Göteborg, Sweden, nr: 266).

** BibTeX **

@mastersthesis{

Eliasson2011,

author={Eliasson, Sofia and Olsson, Daniel},

title={Barge Stern Optimization Analysis on a straight shaped stern using CFD},

abstract={A barge is a vessel which is designed to transport very heavy loads. Barge sterns
therefore have steep inclination angles which will yield a large displacement and hence
maximize the cargo capacity. In this thesis the barge stern of the split hopper barge
D14 design made by Fartygskonstruktioner AB has been analysed using SHIPFLOW, a
CFD software. It is of interest to investigate how the inclination angle affects the
resistance of the barge. Since this analysis will focus on the stern, the flow right behind
the hull is of importance. Considering that, a zonal approach was chosen for the CFD
computations. This approach uses viscous flow computations (or RANS computations)
to solve the wake flow at the stern.
Two different conditions of the barge have been analysed, a fully loaded condition and
a ballast condition. When the barge is fully loaded there is no trim while at ballast
condition there is a large trim. As a first step in the analysis computations were run on
the initial hull design and the results where then verified with existing results from a
resistance test made on a model of the full scale barge. When accurate results had
been achieved for the initial stern the analysis continued with computations run on
modified sterns where the inclination angle was systematically changed. Unfortunately
the analysis could not be completed for ballast condition since a bug in SHIPFLOW was
revealed and it turned out that largely trimmed conditions could not be handled by the
software.
For the analysis of modified sterns, computations were run on two sterns with a
steeper inclination than for the initial stern and two sterns with lesser inclination. The
outcome of the computations was that in the speed interval from 9 to 12 knots the
initial hull has the lowest total resistance when comparing to the modified sterns, but
at speeds lower than 9 knots the steepest inclination resulted in the lowest total
resistance.},

publisher={Institutionen för sjöfart och marin teknik, Fartygs framdrivning och miljöpåverkan, Chalmers tekniska högskola},

place={Göteborg},

year={2011},

series={Report. X - Department of Shipping and Marine Technology, Chalmers University of Technology, Göteborg, Sweden, no: 266},

keywords={Dredger, Barge sterns, Optimization, CFD, RANS, SHIPFLOW},

note={105},

}

** RefWorks **

RT Generic

SR Electronic

ID 148658

A1 Eliasson, Sofia

A1 Olsson, Daniel

T1 Barge Stern Optimization Analysis on a straight shaped stern using CFD

YR 2011

AB A barge is a vessel which is designed to transport very heavy loads. Barge sterns
therefore have steep inclination angles which will yield a large displacement and hence
maximize the cargo capacity. In this thesis the barge stern of the split hopper barge
D14 design made by Fartygskonstruktioner AB has been analysed using SHIPFLOW, a
CFD software. It is of interest to investigate how the inclination angle affects the
resistance of the barge. Since this analysis will focus on the stern, the flow right behind
the hull is of importance. Considering that, a zonal approach was chosen for the CFD
computations. This approach uses viscous flow computations (or RANS computations)
to solve the wake flow at the stern.
Two different conditions of the barge have been analysed, a fully loaded condition and
a ballast condition. When the barge is fully loaded there is no trim while at ballast
condition there is a large trim. As a first step in the analysis computations were run on
the initial hull design and the results where then verified with existing results from a
resistance test made on a model of the full scale barge. When accurate results had
been achieved for the initial stern the analysis continued with computations run on
modified sterns where the inclination angle was systematically changed. Unfortunately
the analysis could not be completed for ballast condition since a bug in SHIPFLOW was
revealed and it turned out that largely trimmed conditions could not be handled by the
software.
For the analysis of modified sterns, computations were run on two sterns with a
steeper inclination than for the initial stern and two sterns with lesser inclination. The
outcome of the computations was that in the speed interval from 9 to 12 knots the
initial hull has the lowest total resistance when comparing to the modified sterns, but
at speeds lower than 9 knots the steepest inclination resulted in the lowest total
resistance.

PB Institutionen för sjöfart och marin teknik, Fartygs framdrivning och miljöpåverkan, Chalmers tekniska högskola,PB Institutionen för sjöfart och marin teknik, Fartygs framdrivning och miljöpåverkan, Chalmers tekniska högskola,

T3 Report. X - Department of Shipping and Marine Technology, Chalmers University of Technology, Göteborg, Sweden, no: 266

LA eng

LK http://publications.lib.chalmers.se/records/fulltext/148658.pdf

OL 30