COURSE UNIT TITLE

: SHIP HYDROMECHANICS

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
NAV 5049 SHIP HYDROMECHANICS COMPULSORY 3 0 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR DOCTOR KADRI TURGUT GÜRSEL

Offered to

NAVAL ARCHITECTURE
NAVAL ARCHITECTURE

Course Objective

Through this course, it is aimed to create a certain background by informing graduate students who have graduated from different undergraduate disciplines about basic ship hydromechanics and applications. Within the scope of the course, hydromechanical classification of ships, ship geometry and stability, resistance of ships, friction and viscous pressure resistance components as well as wave resistance component are treated in detail through fluid mechanics principles. Using the Froude approach, resistance prediction methods are examined. Propulsion systems, propulsion and efficiency definitions, propeller selection, steering of ships and rudder mechanics and types are discussed.

Learning Outcomes of the Course Unit

1   1- To have basic information about ship geometry and to be able to evaluate ships by classifying them according to their forms and propulsion methods.
2   2- To be able to apply Froude method effectively by predicting ship resistance components.
3   3- To have basic knowledge about propulsion systems and efficiency.
4   4- To be able to apply basic knowledge about manoeuvring elements and steering characteristics.
5   5- To have basic knowledge of linear wave theory and to be able to calculate wave energy values from wave energy spectrum.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 1. Stability concept in ships; initial stability and stability at large angles.
2 2. Classification of marine vehicles. Form-based stability and resistance properties. The ship's resistance formulation from the view of dimensional analysis. Importance of Froude and Reynolds numbers. Froude approach in towing tanks. ITTC 1978 methods.
3 3. Components of resistance. Friction resistance; viscous resistance and form factor. Wave resistance.
4 4. Analysis of ship waves, Kelvin wave model. Wave resistance reduction methods. Shallow water resistance.
5 5. Ship propulsion. Ship - propeller interaction.
6 6. Propeller geometry. Efficiency in ship propulsion. Ship hull - propeller interaction.
7 7. Simple momentum theory for propellers. Profile theory and three-dimensional effects.
8 8. Cavitation phenomenon, cavitation stages of a propeller. Determination of propeller blade area ratio: Burril diagram and Keller equation.
9 9. Standard propeller series. Propeller selection process with design charts. Propeller calculation example.
10 10. Unconventional propellers.
11 11. The rudders used in ships. Rudder analysis as a lifting surface. Rudder propeller interaction. Steering systems except for the rudders.
12 12. Basic wave parameters. Linear wave theory. Potential theory and boundary conditions at sea.
13 13. Irregular sea waves. Spectral analysis of waves. Spectral moment of the sea state and its relation to sea waves.
14 14. Bretschneider, Pierson-Moskowitz and JONSWAP wave spectra, wave energy spectrum calculation from wind speed.

Recomended or Required Reading

1. AA. Harald, Resistance and Propulsion of Ships, Wiley, 1983.

2. K. Kafalı, Gemi Formunun Statik ve Dinamik Esasları Cilt I, II, III, ITÜ Kütüphanesi, Sayı: 1219, 1983.

3. K.J. Rawson and E.C. Tupper, Basic Ship Theory, Longmans, 2006.

4. J.N. Newman, Marine Hydrodynamics. Cambridge, MA: MIT Press, 1977.

5. Lecture notes...

Planned Learning Activities and Teaching Methods

Teaching is done through lectures, practices and a compulsory computer-assisted homework.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 ASG ASSIGNMENT
2 MTE MIDTERM EXAM
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE ASG * 0.30 + MTE * 0.30 + FIN * 0.40
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) ASG * 0.30 + MTE * 0.30 + RST * 0.40


*** Resit Exam is Not Administered in Institutions Where Resit is not Applicable.

Further Notes About Assessment Methods

None

Assessment Criteria

To be announced.

Language of Instruction

Turkish

Course Policies and Rules

Attendance: Students are required to attend every class. Attendance will be taken at the beginning of each class.

Plagiarism: Plagiarism will be reported to Academic Judiciary Boards and can result in getting zero on the assignment / exams and failing the course.

Late assignments: All assignments are due at the beginning of the class. The extensions will not be granted.

Accommodations: Students are required to let the instructor know any special accommodations needed due to learning disabilities, medical needs, etc.

Contact Details for the Lecturer(s)

DEU Institute of Marine Sciences and Technology
Heydar Aliyev Boulevard. 32, Inciraltı (35340) Izmir / Turkey
Phone: +90.232.278 5565, 278 6515 (148-extension)
Fax: +90.232.278 5082

Office Hours

To be announced.

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 14 3 42
Preparations before/after weekly lectures 14 3 42
Preparation for midterm exam 1 20 20
Preparation for final exam 1 20 20
Preparing assignments 1 20 20
Preparing presentations 1 10 10
Web Search and Library Research 3 10 30
Final 1 3 3
Midterm 1 2 2
TOTAL WORKLOAD (hours) 189

Contribution of Learning Outcomes to Programme Outcomes

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CONTACT INFORMATION
Dokuz Eylül Üniversitesi Cumhuriyet Bulvarı No: 144 35210 Alsancak / İZMİR
Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

Copyright 2015 DEÜ. BİD

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