Course details

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Student Mobility > Programmes and Courses > Courses in English > Course details

Ship Resistance and Propulsion

Teaching: Completely taught in English
ECTS: 6
Level: UnderGraduate
Semester: Summer
Prerequisites:
Exam in Fluid Mechanics II B and Ship buoyancy and accomplishment of project assignment at least 7 days before the advertised deadline of written examinations.
Load:
Lectures Exercises Laboratory exercises Project laboratory Physical education excercises Field exercises Seminar Design exercises Practicum
45 0 16 0 0 0 0 0
Course objectives:
Acquire knowledge of resistance and propulsion of ships and the methods for predicting the propulsion characteristics of ship.
Student responsibilities:
Grading and evaluation of student work over the course of instruction and at a final exam:
Colloquiums (or written exam), project assignment, oral exam.
Methods of monitoring quality that ensure acquisition of exit competences:
Attending lectures and excercises, activity during lectures and excercises, discussion during the lectures and excercises, homeworks, accomplishing project, colloquiums, final exam (written and oral)
Upon successful completion of the course, students will be able to (learning outcomes):
Analyze the phenomenon of water flow around the ship hull. -Distinguish the components of ship resistance -Compare the methods for determination of the ship resistance -Organize the experiments with ship models and propeller models related to problems of resistance and propulsion of the ship -Comment the interaction between propulsion engine and propeller and the connection between the resistance and propulsion of the ship. -Specify the model experiments in marine hydrodynamics and sea trials. -Extrapolate the results from model to ship. -Predict the results for a real ship on the basis of experimental data for the model. -Evaluate the resistance and propulsion coefficients on the basis of experimental data.
Lectures
1. Introduction, mathematical models, coordinate system, movement of ship as a rigid body.
2. Forces and moments acting on ship hull. Nondimensional models.
3. Physical models, towing tanks, laws of similarity, physical similarity.
4. Sailing modes, resistance, viscous resistance, laminar and turbulent flow, boundary layer.
5. Flow separation, resistance coefficients, turbulence stimulating, roughness, fouling, resistance due to local roughness, influence of curvature.
6. Viscous pressure resistance, appendage resistance.
7. Wave making resistance, waves in deep water, ship waves, interference, determining wave resistance.
8. Wave breaking resistance, residuary resistance. Resistance in service conditions, wind resistance, additional fouling resistance, additional wave resistance.
9. Resistance prediction by model testing.
10. Hull and propeller interaction. Propulsion components.
11. Open water propeller test, auto propulsion tests by the continental and by the British method.
12. Wake components, real and nominal wake coefficients, wake prediction, radial wake distribution, wake field.
13. Thrust deduction components. Hull efficiency and relative efficiency.
14. Hull form analysis, Froude number and hull form coefficient relations. Influence of parallel mid body, bulbous bow, waterline entrance and run.
15. Fast ships of displacement, semi displacement and planing hull forms. Multi hulls, hydrofoils and SES hulls.
Exercises
1. Visit to the towing tank.
2. Nondimensional coefficients in ship hydrodynamics.
3. Geometrical similarity, dimensional analysis.
4. Laminar and turbulent flow, examples and experiment results.
5. Flow along plating, roughness influence.
6. Viscous pressure resistance by different methods.
7. Wave resistance prediction examples.
8. Resistance prediction by the ITTC-57, ITTC-78 and modern methods.
9. Systematical ship hull form series.
10. Wake field behind ship and behind model.
11. Auto propulsion results by two methods.
12. No dimensional presentation of resistance parameters. Approximate methods for resistance and propulsion prediction.
13. Typical resistance and propulsion tasks.
14. Instructions for individual student work.
15. Individual student work.
Compulsory literature:
Gamulin, A., Otpor i propulzija broda, skripta, Brodarski institut, Zagreb, 1998.



Sentić, A., Fancev, M., Problemi otpora i propulzije brodova, Brodarski institut, Zagreb,1956.



Vučinić, A., Hidrodinamika plovnih objekata (Otpor i propulzija broda), Sveučilište u Rijeci Tehnički fakultet, Rijeka 1997.



Van Lammeren, W.P.A., Otpor i propulzija brodova, Brodarski institut, Zagreb 1952.



Harvald, Sv.Aa., Reistance and propulsion of ships, John Wiley & Sons, 1983.
Recommended literature:
Larsson, L., Raven, H.C., Principles of Naval Architecture Series: Ship Resistance and Flow, The Society of Naval Architects and Marine Engineers, 2010.



Lewis, E. V., Principles of Naval Architecture, Second Revision, Vol II, Resistance, Propulsion and Vibration, SNAME, 1988.



Molland, A.F., Turnock, S.R., Dominic A. Hudson, D.A., Ship Resistance and Propulsion: Practical Estimation of Ship Propulsive Power, 2011.



Saunders, H.E., Hydrodynamics in ship design, Volume 1.-2., SNAME, New York, 1957.



Bertram, V., Practical Ship Hydrodynamics, Buterworth Heinemann, 2000.



Betram, V., Schneekluth, H., Ship Design for Efficiency and Economy, Butterworth Heinemann, 1998.

Faculty of Mechanical Engineering
and Naval Architecture
Ivana Lučića 5
10002 Zagreb, p.p. 102
Croatia
MB 3276546
OIB 22910368449
PIC 996827485
IBAN HR4723600001101346933
tel: +385 1 6168 222
fax: +385 1 6156 940
University of Zagreb
Ministry of Science and Education