Ship Design III - Hydrodynamics

- Fundamental fluid mechanics - Viscous fluids (Euler and Navier-Stokes equations, Boundary layers and separation, laminar vs. turbulent flow) - Ideal fluids (Potential theory, Laplace equation) - Description of ocean environment (Wind, Current, waves and wave theories, Regular waves, Irregular waves) - Hydrodynamic forces (Large-volume structures, Small-volume structures) - Ship motion in waves (General dynamics, transfer function, natural frequency, damping) - Propulsion (Propulsion systems, efficiencies)

Knowledge:

• shall have a fundamental understanding of the mathematical models used in general fluid mechanics.
• shall be familiar with linear wave theory and understand how irregular ocean waves can be established from the fundamental regular components.
• is aware of the fundamentals of propeller theory and knows how the propeller characteristics can be established by model tests and various calculation methods.

Skills:

• knows how to apply fundamental mechanical principles to predict hydrodynamic forces.
• knows how to calculate wave forces on slender marine structures.
• knows how to combine results from model tests and various calculation methods to establish an estimate of the required installed power in a ship.

General competence:

• is aware of the complex interaction between a ships resistance and the propeller characteristics.
• is familiar with the statistical uncertainties of the ocean waves (direction, height and period) and the influence this will have on a vessels response characteristics.
• is capable of interpreting, understanding and presenting results from a model test to colleagues and other partners.

Lectures and assignments.

Mandatory requirements: 8 out of 10 mandatory assignments must be approved before access to exam is granted.