PyResis

A Python package for ship Resistance estimation

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Requirement: Python >= 3 and numpy, scipy.

Installation: pip install PyResis.

Usage

To estimate propulsion resistance of a ship with following dimensions at 2 m/s:

Dimensions	Value	Unit
Length	5.72	metres
Draught	0.248	metres
Beam	0.76	metres
Slenderness coefficient	6.99
Prismatic coefficient	0.613

With PyResis it is easy to get a resistance estimation by:

from PyResis import propulsion_power
ship = propulsion_power.Ship(5.72, 0.248, 0.76, 2, 6.99, 0.613)
ship.resistance

Propulsion power estimation:

ship.propulsion_power()