Geldart particle classification¶
The behavior of solids fluidized by gases can be classified into four groups using the density difference and mean particle diameter. This particle classification was introduced by D. Geldart in 1973.
geldart_chart(dp, rhog, rhos, dpmin=None, dpmax=None)¶
dp (float) – Sauter mean particle diameter [µm]
rhog (float) – Gas density [g/cm³]
rhos (float) – Particle density [g/cm³]
dpmin (float, optional) – Minimum particle size from particle size distribution [µm]
dpmax (float, optional) – Max particle size from particle size distribution [µm]
Particle diameter must be in microns (µm) and density in g/cm³.
For a single particle size
>>> geldart_figure(300, 0.1, 2.5)
For a particle size with min and max sizes
>>> geldart_figure(300, 0.1, 2.5, 100, 500)