particle_mass
#
from particula.util import particle_mass
help(particle_mass)
Help on module particula.util.particle_mass in particula.util:
NAME
particula.util.particle_mass - calculating the particle mass
FUNCTIONS
mass(radius=None, density=1000, shape_factor=1, volume_void=0, **kwargs)
Returns particle's mass: 4/3 pi r^3 * density.
Examples:
```
>>> particle_mass(1*u.m)
<Quantity(4188.7902, 'kilogram')>
>>> particle_mass(1*u.nm, 1000*u.kg/u.m**3).m
4.188790204786392e-24
>>> particle_mass(1*u.nm, 1000*u.kg/u.m**3).m_as(u.g)
4.188790204786392e-21
>>> particle_mass([1, 2, 3]*u.nm, 1000*u.kg/u.m**3).m
array([4.18879020e-24, 3.35103216e-23, 1.13097336e-22])
>>> particle_mass([1, 2]*u.nm, [1, 2]*u.g/u.cm**3).m
array([4.18879020e-24, 6.70206433e-23])
>>> particle_mass(2*u.nm, 2*u.g/u.cm**3).m
6.702064327658225e-23
```
Args:
radius (float) [m]
density (float) [kg/m^3] (default: 1000)
shape_factor (float) [ ] (default: 1)
volume_void (float) [ ] (default: 0)
Returns:
(float) [kg]
FILE
/opt/hostedtoolcache/Python/3.11.9/x64/lib/python3.11/site-packages/particula/util/particle_mass.py
import inspect
print(inspect.getsource(particle_mass))
""" calculating the particle mass
"""
import numpy as np
from particula.util.input_handling import in_density, in_radius, in_scalar
def mass(
radius=None,
density=1000,
shape_factor=1,
volume_void=0,
**kwargs,
):
""" Returns particle's mass: 4/3 pi r^3 * density.
Examples:
```
>>> particle_mass(1*u.m)
<Quantity(4188.7902, 'kilogram')>
>>> particle_mass(1*u.nm, 1000*u.kg/u.m**3).m
4.188790204786392e-24
>>> particle_mass(1*u.nm, 1000*u.kg/u.m**3).m_as(u.g)
4.188790204786392e-21
>>> particle_mass([1, 2, 3]*u.nm, 1000*u.kg/u.m**3).m
array([4.18879020e-24, 3.35103216e-23, 1.13097336e-22])
>>> particle_mass([1, 2]*u.nm, [1, 2]*u.g/u.cm**3).m
array([4.18879020e-24, 6.70206433e-23])
>>> particle_mass(2*u.nm, 2*u.g/u.cm**3).m
6.702064327658225e-23
```
Args:
radius (float) [m]
density (float) [kg/m^3] (default: 1000)
shape_factor (float) [ ] (default: 1)
volume_void (float) [ ] (default: 0)
Returns:
(float) [kg]
"""
_ = kwargs.get("something", None)
radius = in_radius(radius)
density = in_density(density)
shape_factor = in_scalar(shape_factor)
vol_void = in_scalar(volume_void)
return (
density * (4 * np.pi / 3) * (radius**3)
* shape_factor * (1 - vol_void)
).to_base_units()