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Components of ship resistance - frictional, wave and other components; Dimensional analysis; Bulbous bow and ship form effects; Shallow water effects; Added resistance; Ship model tests and resistance data presentations - methodical series data; Resistance of advanced marine vehicles.

Powering and efficiency components; Screw propeller geometry; Propeller theories; Dimensional analysis; Hull-propeller interaction; Propeller model tests; Cavitation; Propeller design; Strength of propellers and manufacturing process; Sea-trials; Other propulsion systems and applications.

Module No

Topics

No. of Hours

1

Components of ship resistance, dimensional ananlysis, Froude's hypothesis and model analysis, frictional resistance, wave resistance, wind resistance; effect of bulbous bow and ship form on resistance, shallow water effects, added resistance.

8

2

Ship model tests and resistance data presentations, Prohaska's method ; Methodical series data - BSRA, Series 60; resistance of special types of hull forms and advanced marine vehicles.

8

3

Powering and efficiency components, screw propeller geometry, Propeller theories - momentum, blade element and circulation theories, vortex lattice method and CFD applications.

8

4

Dimensional analysis and similarities; Hull-propeller interaction; Open water and self-propulsion tests; Propeller cavitation - types, prevention, tests; Design of screw propellers - series charts, selection of engine.

8

5

Strength of propellers and manufacturing process; Powering of ships and sea-trials; Other types of propellers - shrouded, CPP, vertical axis, super-cavitating, podded, azimuth, podded propellers.

8

Total

40

  1. Basic course in Fluid Mechanics/ Hydrodynamics.

  1. Lewis, E.U; 'Principles of Naval Architecture' (2nd Rev.) Vol. 2, 1989, SNAME New York

  2. Harvald S.A.; "Resistance and Propulsion of Ships", John Wiley & Sons., 1983

  3. Ghose,J.P and Gokarn,R.P, "Basic Ship Propulsion", Allied Publishers, 2004

  4. Tupper,E.C;Introduction to Naval Architecture, Butterworth-Heinemann,  1998.

  5. Carlton J, Marine Propellers and Propulsion, Elsevier 2007.



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