Welcome to PyResis documentation!¶
PyResis is a Python package for ship propulsion resistance estimation. This program is based on empirical method which can quickly estimate resistance and propulsion power for a range of ships.
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 an resistance estimation by:
from PyResis import propulsion_power
ship = propulsion_power.Ship()
ship.dimension(5.72, 0.248, 0.76, 2, 6.99, 0.613)
ship.resistance()
Propulsion power estimation:
ship.prop_power()