Fluid Dynamics
Fluids – Physical properties, – density, specific gravity, specific volume, temperature,
viscosity , compressibility, surface tension, vapor pressure, fluid static pressure, atmospheric
pressure, pressure variation in incompressibility, fluid, absolute pressure, gauge pressure,
manometer; buoyancy and floatation – Archimedes principle.
Fluid kinematics – viscous and nonviscous flow, compressible and incompressible flow,
rotational and irrorational flow; potential flow – equation of continuity, Bernomill’s pressure
equation, Analysis of flow in finite control volumes and application to siphon, venture meter,
orifice meter etc.,
Euler turbine equation: impulse and reaction turbines, similarity analysis, specific speed and
classification of fluid machinery; design methodology of low speed axial and radial flow
machines (i.e pumps, fans, and hydraulic turbines); losses in fluid machinery.
Thermodynamics
Fundamentals of Thermodynamics—Carnot’s Cycle, ideal efficiency; enthalpy and entropy;
laws of thermodynamics; heat engines and heat pumps.
IC Engine principles, working principle of diesel engines;
Steam and Air boilers and turbines – cycle combustim, reheat, regeneration, condenser and
compressor.
Hydro statistics & stability
Hull form definition of ships and ocean structures; Deadweight, capacity and tonnage measurement Hydrostatic calculations; Initial stability, fi7ee surface effects, stability at large angles; Intact and damaged stability computations; Damaged stability and its calculation by lost buoyancy and added weight methods; IMO stability criteria; Subdivision and floodable length calculations; Subdivision indices; Launching calculations; Stability of fully submerged body; Stability of multibody systems; Pressure integration technique of computing hydrostatic and stability.
Marine Hydrodynamics
Introduction – ideal and viscous incompressible fluid; Kinematics of fluid; Lagrangian and Eulerian methods of description, velocity, acceleration, streamlines, pathlines, vorticity; Equation of continuity; Equations of motion; Bernoulli’s equation and its application including pitot tubes and venturi meter; Two dimensional motion – velocity potential, stream function, Sources, sinks, dipoles; Flow past a circular cylinder with and without circulation; Blasius Theorem; Viscous fluids; Navier Stokes equations, Laminar flow, Poiseuille flow, Couette flow, flow through a pipe; Boundary layer, Reynolds Number; Boundary layer along a flat plate; Blasius solution; Separation, Von Karman momentum integral method; Turbulence, Calculation of turbulent boundary layer; Problems on the motion of perfect fluids – steady translation of a cylinder in an infinite fluid medium, unsteady translation; Added mass of cylinders; Spheres and Lewis forms; Aerofoil theory, complex potential; method of conformal mapping- Joukowski profile; Flow past a Joukowski profile; Aerofoil of finite aspect ratio – The vortex system, fundamental laws of vortex motion; Training vortices. bound vortices, dowswash velocity; Lift; Induced drag; Gravity waves; Airy’s wave; Free surface condition;
Velocity potential- Dispersion relation; Surface tension effects; Orbital motion; Group velocity and its dynamical significance; Wave energy; Standing waves; Loops and nodes, Wave forces and Morison’s equation, Long waves and waves in a canal; Tides.
Elements of Ocean Engineering
Brief introduction to ocean environment and ocean floor characteristics, waves, tides,
currents, seawater properties; statistical analysis – distributions, multiple regression,
correlation, auto-covariance, cross-spectra, practical applications in ocean engineering;
Introduction to offshore structures-gravity platforms, jacket platforms, tension leg platforms,
marine risers, submersibles, offshore pipelines, Instrumentation for ocean applications:
pressure sensors, current meters, CTD, depth sounder, buoy systems etc. Fundamentals of
mooring system and mooring cables. Submarine pipelines: interaction of pipelines with
seabed: free span, scouring and burial of seabed pipelines, forces on sea-bed pipelines,
current & wave-induced vibrations of pipelines, lifting-off of pipelines, introduction to
dredging and reclamation, ocean energy and fundamental principles of energy extractions
from sea waves.
Resistance & Propulsion
Components of ship resistance; Dynamic similarity; Froude hypothesis; Viscous resistance; Laminar and turbulent flows; Effect of roughness; Friction lines; Form resistance; Wave resistance; Kelvin wave pattern and waves generated by a ship; Wave interference; Air resistance; Appendage drag; Ship resistance in shallow water; Resistance data presentation; Estimation of effective power – methodical series and statistical methods- Hull form and resistance.
Screw propeller geometry; Propeller theories; Laws of similarity for propellers; Propellers in “open” water; Propeller coefficients and design charts; Hull propeller interaction – wake, thrust deduction and relative rotative efficiency; Propulsive efficiency and its components; Propeller cavitation- Propeller blade strength; Propulsion experiments- Propeller design; Speed trials and service performance analysis; Unconventional propulsion devices
Marine Construction & Welding
Introduction to various types of ships and offshore structures; Aspects of shipbuilding technology; Structural components – bottom construction, shell plating, decks, fore and aft peak construction, superstructure and deckhouses, bulkheads; Framing system; Structural continuity; Steel material preparation – shot blasting, acid pickling etc; Plate cutting methods; Plate and section forming – mechanical methods and line heating techniques; Fusion welding – types of power source and their characteristics, welding methods – MMAW, GMAW, SAW, Electroslag welding; Welding parameters and their effect on welded joints; Welding distortions-causes and prevention; Welding defects; Nondestructive testing.
Marine Structures
Forces acting on ship structure; Idealization of ship structure as hull girder; Longitudinal bending of hull girder—weight and buoyancy curves; deflection, shear force and bending moment diagrams; Section Effect of shear force in bending; Stresses in inclined conditions; modulus-bending and shear stresses, longitudinal strength standards; Analysis of bulkheads and decks; Structural discontinuities and stress concentration; Analysis of beam and frame using stiffness method; Introduction to elasticity; Plane stress and plate bending problems
Motion & Control
Introduction to sea-keeping. Recapitulation of surface gravity waves. Description of
irregular waves: Wave spectrum. Ship motions in regular waves: Frequency of encounter,
natural periods, RAO. Motions in regular waves; response spectra. Derived responses:
Slamming, deck wetness, relative motions, sea-sickness etc. Design considerations for
seakeeping. Introduction to maneuverability: various types of directional stability. Basic
hydrodynamics and motion equations of a maneuvering body. Hydrodynamic and control
derivatives. Stability criteria Various definitive maneuvers: turning, zigzag, spiral, etc. Heel
during turn. Experimental determination of hydrodynamic derivatives. IMO maneuvering
standards. Rudder: geometry, hydrodynamics and design.
Marine Production
Overview of ship production systems; Information for shipbuilding production; Product
standardization and work simplification; Product work breakdown and integrated zone engineering; Linear programming concepts; Network analysis; Scheduling and resource allocation; DBMS in production planning and control
Marine Materials
Material types – fabrication and service requirement; Classification society requirement- Selection of material for marine construction; Types of shipbuilding quality steels – Mild steel, HTS, HSLA steel, etc; Heat treatment techniques – effect of thermal cycles on their micro-structure, Material composition of MS, HTS etc. and their effect on weldability and corrosion; Corrosion mechanism of steel – design aspects and prevention techniques. Aluminium alloys – alloy designation, welding requirements; Composites – types of resins, glass and carbon fibers, their properties; Lay up techniques, manufacturing requirements
Marine Systems
Shafting System; Heavy Fuel Oil(HFO), Marine Diesel Oil(MDO) and Lubricant Oil(LO) storage,
transfer and purification systems; Fresh Water and Sea Water systems; Firefighting and Ballast Water systems; Sludge control and oily water purification systems; Electrical load calculation, power generation and distribution systems; Cargo handling – dry break-bulk, unitized and bulk cargo, liquids in bulk, cryogenic liquids etc.; Pumps, piping and valves; Life saving and fire fighting systems; Steering and navigation systems; Anchoring and mooring systems
Vibration & Noise
Introduction to mechanical vibration; Hull Girder vibration, calculation of natural frequencies
of hull girder vibration , propeller induced vibration, shaft vibration, local vibration, vibration
control and mount design. Introduction to noise –structure born noise and radiated noise,
noise characteristics, marine standards on noise rating; noise measurement and analysis, noise
insulation, absorption and isolation
Marine Powerplant
Steam Power plants – principles of heat transfer, component efficiency, effects of
contamination and blow down; operating principles of diesel engines, Thermodynamics of
steam turbines, gas turbines and diesel engines, Fuels- different fuel oils, coal, nuclear fuel,
analysis of fuels; Air requirement, Analysis of Fuel gasses; Air compressors and turbo
charging; combined engines as marine power plant- CODOG, CODAG, electric propulsion
etc., Alternative/Renewable sources of power.
Physical Oceanography
Ocean Dimension, shapes and bottom materials – Continental shelf, slope and rise, deep sea bottom and sounding, sills, bottom materials; Physical properties of sea water – Salinity and conductivity, Temperature, Density effects, Sound and light in the sea, Color of sea water; Distribution of water characteristics – Density distribution, Pycnocline, Static stability, Geographical distribution of density, temperature distribution, Potential temperature, Dissolved oxygen; Heat budget of the Oceans – conservation of volume, salt and heat budget, Geographical distribution of heat budget; Ocean Dynamics – Hydrostatic balance, Small scale mixing/stability, Navier-Stokes Equation, Rotating coordinate systems, Turbulence, Surface gravity waves, Inertial currents, Circulation and water masses of the Oceans – Thermohaline circulation, Wind driven circulation, Circulation and water masses, Indian Ocean circulation and water masses, El nino, Monsoons,Tides; Coastal Processes – coastal upwelling, estuaries, types of estuaries, estuarine circulation; Problem session
Automation & Control Theory
Brief introduction about industrial processes and their automation; Elements of pneumatic,
hydraulic and electrical control systems; Valves and actuators; Stepper motors; PID
controllers and their tuning; Implementation of digital controller; Control strategies for
industrial processes; Programmable logic controller; Real-time issues on signal transmission
and control; Communication systems for industrial automation; Data acquisition and
supervisory control; Control of discrete manufacturing processes; Intelligent systems for
monitoring, supervision and control; Case studies of industrial control systems
High Performance Marine Vehicle
Classification of high performance vehicles; Comparison of vehicles on the basis of power,
seakeeping and economics; Special design features of high performance vehicles- Materials
for high performance marine vehicles; Structural design considerations; Propulsion
machinery and propulsion devices; High speed displacement craft: design procedures,
estimation of power, systems design considerations; Planning craft: planning phenomena,
estimation of power, hull form design, Hydrofoil craft: foil types and configurations, design
of foils, stability when foilborne; Propulsion considerations; Air cushion vehicles types of air
cushion and their effectiveness, cushion sealing arrangements, resistance in calm water and in
waves, propulsion and maneuvering arrangements; surface effect ships; High speed
catamarans; Wing-in-ground effect craft; Hybrid craft
Inland Water Transportation
Inland waterways and their peculiarities; Maintenance of Navigation Channels; Siltation bank
erosion and dredging; inland river ports, jetties and facilities; intermodal transportation – with
sea, road and rail; Specialised intermodal transportation vessels; low draught and low wash
self propelled vessels- Special features – tunnels, shrouded propeller, Inland river vessel
design – dumb barges, flotilla/pusher tugs
Submarines & Submersibles
The submersible systems: Characteristics of submarines and submersibles; Operating
environment; Materials used in submarines and submersibles- Structural and non-structural;
Stability considerations- Hydrodynamics of submerged vehicles – resistance, propulsion and
manoeuvring; Structural considerations – Pressure hull and exo-structure; Support systems;
Safety considerations; Basic design of manned and unmanned submersibles