COURSE UNIT TITLE

: GEMI HIDRODINAMIğI

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
NAV 5050 GEMI HIDRODINAMIğI ELECTIVE 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, graduate students from different undergraduate disciplines will first be informed about the fundamental principles of the ship hydrodynamics. In the following stage, six degrees of freedom ship motions, manoeuvres and general equations as well as ship vibrations will be examined. In addition to these topics, profile theory and hydrofoil geometry, hydrofoil boats and advanced marine applications will be studied.

Learning Outcomes of the Course Unit

1   1- To be able to solve basic problems in linear wave theory and boundary conditions and spectral analysis of waves.
2   2- To be able to comprehend six degrees of freedom ship movements and ship manoeuvres.
3   3- To have a basic knowledge about the vibration of the ship hull.
4   4- To have basic design knowledge in the application of hydrofoil surfaces to hulls, propellers and rudders.
5   5- To be able to know and evaluate the advanced applications of hydrofoil theory in marine field.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 1. Basic wave parameters. Linear wave theory. Potential theory and boundary conditions at sea. Solution of Laplace equations using given boundary conditions.
2 2. Irregular sea waves. Spectral analysis of waves. Bretschneider, Pierson-Moskowitz and JONSWAP wave spectra. Its relation to wind speed.
3 3. Six degrees of freedom ship motions.
4 4. Control equations of a ship in the horizontal plane. The phases of a ship in turning manoeuvre. An overview of translation and rotational dynamics.
5 5. Equations of a body making heave motions. Solution of the differential equation of the ship heave motion with a damping element. Wave loads acting on ships and structures.
6 6. The vibration of the ship's hull. Hydrodynamic added mass, damping, righting moment. Examination of ship motions for design purposes.
7 7. Evaluation of the overturning parameters of ships. Factors being effective in overturning. Rolling damping systems.
8 8. General issues about hydrofoil and wing profiles. Hydrofoil geometry, thickness, curvature, aspect ratio. Lifting and drag forces, circulation around a two-dimensional hydrofoil surface.
9 9. Three-dimensional wing theory, optimum circulation distribution. Factors affecting lift, calculation of zero-lift angle. Stage and viscous effects.
10 10. Cavitation phenomenon. Cavitation types. Wing profiles and cavitation. Super cavitation theorem. Super cavitation profile applications.
11 11. Hydrofoil boats and their types. Stabilization of hydrofoil boats.
12 12. Application of the hydrofoil theorem to marine propellers. Different profile geometries applied in marine propellers.
13 13. Application of hydrofoil theory to rudders. Various types of rudders.
14 14. Advanced applications: Flettner rotor. Ground effect, analysis of a hydrofoil in ground effect. Ground effect vehicles and wing concepts with increased power (Wing in ground effect, WIG).

Recomended or Required Reading


1. T. Sabuncu, Gemi Hidrodinamiği, ITÜ Kütüphanesi, 1986.

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

3. V. Betram, Practical Ship Hydrodynamics, ISBN 0 7506 4851 1, Butterworth-Heinemann, 2000.

4. Sabersky, Rolf H., et al. Fluid Flow. Upper Saddie River, NJ: Prentice Hall, 1999.

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 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE *0.35 + ASG *0.25 +FIN *0.40
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE *0.35 + ASG *0.25 +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 the each class.

Plagiarism: Plagiarism will be reported to Academic Judiciary Boars 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 extentions 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

It will be announced at the beginning of each semester.

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 25 25
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) 194

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11PO.12
LO.1454545445535
LO.2455545445535
LO.3455545445535
LO.4455545445535
LO.5455545444435

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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