L’entrainement de particules par le courant intersticiel
The pore system of a packed bed is schematized of canals in order to permit probability-computations for a strange particle carried by the pore water movement to arrive at a certain place in certain time.
The computations lead to explicit values for the coefficient of longitudinal and transversal diffusivity.
A test device is described which permits determination of longitudinal difffusivity. Relation between test result and theory is discussed.
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