title: [Model equations for graviosmotic flows in double-membrane system].
abstract: On the basis of Kedem-Katchalsky equations the model equations for graviosmotic flows was elaborated. The validity of this model for aqueous glucose solutions was verified, using a Kargol's double-membrane cell. In the cell, volume flux was measured as a function of time and solution concentrations. These experimental findings are interpreted in terms of a gravitational instability that reduced concentration boundary layers dimensions. A critical values of concentration Rayleigh number for membrane transport is used in a mathematical model for gravitationally sensitive volume flows.
authors: Katedra Zdrowia Publicznego, Wydział Zarzadzania Politechnika Czestochowska. ajslezak@zim.pcz.pl
authors: Andrzej
authors: A
authors: Slezak
mesh_terms: D001692:Biological Transport; D002462:Cell Membrane / Q000378:metabolism*; D015314:Dialysis Solutions / Q000493:pharmacokinetics; D004058:Diffusion; D005947:Glucose / Q000378:metabolism; D008567:Membranes, Artificial; D008954:Models, Biological; D008956:Models, Chemical; D009995:Osmosis
chemical_list: D015314:Dialysis Solutions; D008567:Membranes, Artificial; D005947:Glucose