Barodiffusion in a rotating binary mixture over an infinite rotating disk
Abstract
Barodiffusion (diffusion of species brought about by pressuregradients) in an isothermal, incompressible, Newtonian binary mixture in a steady, laminar, axisymmetric, rotating motion over an infinite, rotating, impermeable disk is considered. In view of some potential applications the simplifying features of isotopic mixtures are taken into consideration in the formulation of the problem. An exact solution for the barodiffusion problem analogous to the von Karman flow solutions is given. Results clearly identifying the small but significant separative action of the pressuregradients in this configuration are presented for Schmidt numbers of order unity (typical of gaseous mixtures).
 Publication:

Zeitschrift Angewandte Mathematik und Physik
 Pub Date:
 May 1975
 DOI:
 10.1007/BF01590546
 Bibcode:
 1975ZaMP...26..337S
 Keywords:

 Binary Mixtures;
 Diffusion Theory;
 Pressure Gradients;
 Rotating Disks;
 Rotating Fluids;
 Axisymmetric Flow;
 Gaseous Diffusion;
 Laminar Flow;
 Pressure Effects;
 Schmidt Number;
 Space Commercialization;
 Steady Flow;
 Von Karman Equation;
 Fluid Mechanics and Heat Transfer;
 Exact Solution;
 Potential Application;
 Gaseous Mixture;
 Mathematical Method;
 Binary Mixture