centrifuge_time: \lifecycleexperimental

In evanmascitti/soiltestr: Functions for Laboratory Soil Testing

\lifecycleexperimental

Description

Compute particle settling time in a centrifuge

Usage

centrifuge_time(
  diameter,
  water_temp_c,
  center_to_liquid_surface = 7,
  sampling_depth = 7,
  rpm = 2000,
  Gs = 2.7
)

Arguments

diameter	particle diameter (Stokes' ESD), in microns
water_temp_c	Water temp in deg. C
center_to_liquid_surface	distance in cm from center of rotation to liquid surface
sampling_depth	depth in cm to insert pipette below liquid surface
rpm	centrifuge revolutions per minuite
Gs	specific gravity of soil solids (usually taken as 2.5 g/cm3 due to non-negligible volume of adsorbed water at particle surface)

Details

Useful for clay mineral separations and more flexible particle size analysis timing

Value

Double of length 1.

evanmascitti/soiltestr documentation built on Oct. 6, 2022, 5:32 p.m.