Influence of electric field on the unsteady dispersion coefficient in couple-stress flow

Issue title: 25th Anniversary Volume. Memorial Issue for Robin Fåhræus (1888–1968)

Article type: Research Article

Authors: Rudraiah, N.^a | Vortmeyer, D.^b | Veena, B.H.^a

Affiliations: [a] UGC-DSA Centre in Fluid Mechanics, Central College, Bangalore University, Bangalore-560 001, India | [b] Institute ‘B’ For Thermodynamics, Technical University of Munich, Arcisstr, 21, 8000 Munchen 2

Note: [] Accepted by: Editor E. Fukada

Abstract: The influence of electric field on unsteady convective diffusion in couple stress flow is studied using a time, dependent dispersion model. The electric field, arising as a body couple in the governing equations, is shown to increase the axial dispersion coefficient. This is useful in the control of haemolysis caused by artificial organs implanted or extracorporeal. The contribution of pure convection in the dispersion of concentration is singled out and investigated in detail. The results obtained are compared with those in the absence of electric field and some important conclusions are drawn.

Keywords: Haemolysis, Electric field, Dispersion, Biomechanics

DOI: 10.3233/BIR-1988-25608

Journal: Biorheology, vol. 25, no. 6, pp. 879-890, 1988