Centrifugal permeation process of fluid through solid particle deposit was analysed theoretically. In accordance with this analysis, it was shown that the centrifugal permeation process was able to be predicted by the aid of the compression permeability data. The predicted centrifugal permeation processes were favourably consistent with the experimental processes for limestone-, coal- and yeast-water slurries.
The specific flow resistance of particle deposit depends in general on hydraulic pressure, but that of the centrifugal process is able to take different value even under the same hydraulic pressure due to its thickness. For predicting the specific resistance of the centrifugal permeation, it is accordingly essential to take into account both of the hydraulic pressure and the solid compressive pressure distribution in the deposit differed with each thickness. When the specific resistance of filtration or permeation process under pressure or vacuum has to be examined and utilized cocurrently with that of centrifugal to design and scale-up the process, it was shown that the average compressive pressure defined in this paper was effective as the pressure variable.
