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Aerosol Kinetics Buoyancy Effects For small particles in liquids, the buoyancy effect must be included. Thus Equation (1) is replaced by
where mf is the mass equivalent volume fluid given as
and ma is the apparent mass with ρƒ being the fluid density. For spherical particles,
Keeping the same definition for particle relaxation time as given by Equation (3), Equation (2) may be restated as
The expression for the terminal velocity then becomes
Note that the Basset force and the memory effects are neglected in this analysis. |
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