Course details

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Ship Propulsors

Teaching: Completely taught in English

ECTS: 6

Level: UnderGraduate

Semester: Winter

Prerequisites:

Completed course in Ship resistance and propulsion 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
30		0	30	0	0	0	0	0

Course objectives:

Getting familiar with different types of marine propulsors, selection criteria for the marine propeller for a certain ship and the methods for calculation of the marine propeller.

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 exercises, activity during lectures and exercises, discussion during the lectures and exercises, 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 marine propeller. -Distinguish the working principle of various types of marine propulsors. -Comment the interaction between ship hull and marine propeller. -Identify model experiments in cavitation tunnel and distinguish various types of cavitation. -Estimate the characteristics of marine propeller by analytical and numerical methods. -Propose the marine propeller for a given ship.

Lectures

1. Basic principles of marine propulsors and propulsion.

2. Basic principles of marine propeller. Geometry of marine propeller.

3. Lifting profiles and lifting surfaces of marine propeller.

4. Kinematics of the marine propeller and blade element theory.

5. Theory of propulsors, physical laws of propulsion.

6. Vortex theory of propeller.

7. Experiments with models of marine propellers.

8. Interaction between ship hull and marine propeller.

9. Cavitation. Basic principles of cavitation. Types of cavitation. Experimental investigation of cavitation.

10. Vibrations induced by marine propeller. Acoustics of marine propeller.

11. Design of marine propeller.

12. Strength analysis of marine propellers.

13. Propulsion tests on sea trials. Analysis of the obtained data.

14. Construction, manufacturing and maintenance of marine propeller.

15. Other types of marine propulsors. Advances methods in design of a marine propulsors.

Exercises

1. Basic principles of marine propulsors and propulsion.

2. Geometry of marine propeller.

3. Practical examples. Open water and self-propulsion tests.

4. Preliminary project of a marine propeller.

5. Practical project of a marine propeller.

6. Cavitation criteria.

7. Experiments with models of marine propellers. Analysis of experimental data.

8. Project assignment. Individual student work.

9. Individual student work.

10. Individual student work.

11. Individual student work.

12. Individual student work.

13. Individual student work.

14. Individual student work.

15. Examples of advanced methods in design of a marine propeller.

Compulsory literature:

Sambolek, M., Propulzija broda, Brodarski institut, Zagreb, 2012.



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



Carlton, J., Marine Propellers and Propulsion, Elsevier Ltd., 2012.



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

Recommended literature:

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



Faltinsen, O.M., Hydrodynamics of High-Speed Marine Vehicles, Cambridge University Press, 2010.



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



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



Larsson, L., Raven, H.C., Principles of Naval Architecture Series: Ship Resistance and Flow, The Society of Naval Architects and Marine Engineers, 2010.



Dubrovsky, V., Ships with outriggers, Fair Lawn: Backbone publishing company, 2004.