Geldart particle classification for liquid-solid?

[bmorales]

Hello colleagues

I am working with a liquid-solid system (similar to a fluidised bed) and I would like to know if the Geldart particle classification can be used for such systems.
Any idea about it?

Also, if you have any reference book that deals specifically with solid-liquid and presents correlations (and their validations) minimum fluidisation velocity for liquid-solid, please let me know.

Many thanks!