WIT Press


Spreading Of A Viscous Liquid Film Over The Corrugated Surface

Price

Free (open access)

Paper DOI

10.2495/MPF030081

Volume

42

Pages

10

Published

2003

Size

420.06 kb

Author(s)

Y. Trifonov

Abstract

There are a lot of industrial applications of the structured packing. Distillation columns are one of the examples where the liquid flows over the corrugated surface as a thin film to provide good mass-transfer surface between the liquid and vapor phase. The purpose of the present paper is to study hydrodynamics of the liquid film spreading down the corrugated surfaces when the corrugation amplitude is comparable with the Nusselt's film thickness (the amplitude corresponds to small texture of the structured packing). As a result the non-linear type diffusion equation is obtained to describe the evolution of the film thickness profile. The non-linear diffusion coefficient is obtained for three cases: smooth inclined plate, corrugated plate with large ribs and inclined corrugated plate with small ribs. The equations are solved num

Keywords