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Dan Howe
df39d4e265
|
6 years ago | |
|---|---|---|
| scaling | 6 years ago | |
| tests | 6 years ago | |
| README.md | 6 years ago | |
README.md
scaling
Convert quantities between model and prototype scale using Froude similarity.
Installation
pip install git+http://git.wrl.unsw.edu.au:3000/danh/scaling.git
Usage
>>> from scaling import Froude
>>> froude = FroudeConverter()
>>> # Convert model value of 200 mm to prototype value (m) with scale of 10
>>> froude.model_to_proto(200, length_scale=10, input_unit='mm', target_unit='m')
2.0
>>> # Get Froude scaling exponent for quantities of time
>>> froude.scaling_exponent('s')
0.5
>>> # Get length, mass and time dimensions for quantities of energy
>>> froude.dimensions('kJ')
'L^2 M^1 T^-2'
scaling uses pint for unit and dimension conversions. pint is able to interpret a wide range of different input units.
>>> # Convert water head model value (mm) to prototype pressure value (kPa)
>>> froude.model_to_proto(10, length_scale=100, 'mm.H20', 'kPa')
9.80665
>>> # Demonstrate different ways of specifying units of Newtons
>>> froude.dimensions('N')
'L^1 M^1 T^-2'
>>> froude.dimensions('newton')
'L^1 M^1 T^-2'
>>> froude.dimensions('kg.m/s/s')
'L^1 M^1 T^-2'
>>> froude.dimensions('kilogram.metre/second^2')
'L^1 M^1 T^-2'