Three-dimensional laminar dispersion of a solute in a couple-stress fluid flow through a rectangular channel

• Autorzy: Manjunath S. , Siddheshwar P. G.
• Języki publikacji: EN

Abstrakty

EN

Three-dimensional dispersion of a passive solute in a couple stress fluid through a channel of rectangular cross section is studied using the generalized miscible dispersion theory of Gill and Sankarasubramanian (1970) and Doshi et al. (1978). The effects of couple stress on the velocity and thereby the convective and dispersion coefficients are discussed. The time-dependent dispersion coefficient and mean concentration distribution are computed and the results are represented graphically for various values of the aspect ratio and couple-stress.

Słowa kluczowe

EN

couple stress; aspect ratio; dispersion; convection; mean concentration

PL

proporcje; dyspersja; konwekcja; średnie stężenie

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2011
• Tom: Vol. 16, no 3
• Strony: 775--789
• Opis fizyczny: Bibliogr. 12 poz., wykr.

Twórcy

autor

Manjunath S.

autor

Siddheshwar P. G.

• Department of Mathematics, B N M Institute of Technology Banasankari II Stage Bangalore - 560 070, INDIA,

Bibliografia

• Chatwin P.C. and Sullivan P.J. (1982): The effect of aspect ratio on longitudinal diffusivity in rectangular channels. - J.Fluid Mech., vol.120, pp.347-358.
• Doshi M.R., Daiya P.M. and Gill W.N. (1978): Three dimensional laminar dispersion in open and closed rectangular conducts. - Chem. Engg,. Sci. vol.33, pp.795-804.
• Gill W.N. and Sankarasubramanian R. (1970): Exact analysis of unsteady convective diffusion. - Pro.C.Roy, Soc. Lond, vol. A316, pp.341-350.
• Indira R., Venkatachalappa M. and Siddheshwar P.G. (1996): Effect of wall permeability and tissue fluid flow on the unsteady convective diffusion of solute in a couple-stress fluid flow. - Modelling Measurement and Controll, France, vol.53, No.2, pp.31-39.
• Rudraiah N., Dulal P. and Siddheshwar P.G (1986): Effect of couple stress on the unsteady convective diffusion in fluid flow through a channel. - Biorheology, vol.23, pp.349-358.
• Rudraiah N., Dulal P. and Vortmeyer D. (1985): The effect of aspect ratio on longitudinal diffusivity in a porons medium of rectangular cross-section. - Int. Comm. Heat Mass Trans, vol.12, pp.313-322.
• Rudraiah N., Veena B.H., Siddheshwar P.G. and Shivakumar P.N. (1988): Effect of couple-stress on the ultrafiltration process. - I.E.E.E.Engg. in Medicine and Biology, U.S.A.,vol.3, pp.875-878.
• Siddheshwar P.G. and Markande S. (1999): Unsteady convective diffusion of solute in a micro-polar fluid flow through a cylindrical tube. - ZAMM, vol.79, pp.821-833.
• Siddheshwar P.G. and Manjunath S. (2010): Effect of magnetic field on three-dimensional all-time dispersion in a weak lectrically conducting Newtonian fluid flow. - Chem. Engg. Comm., USA.
• Siddheshwar P.G. and Vasanthi M. (1990): Effects of couple-stress and magnetic field on unsteady convective diffusion in a rectangular channel. - Vignana Bharathi, Silver Jubilees volume, vol.12, No.1, pp.74-89.
• Soundalgekar V.M. (1971): Effects of couple stresses in fluids on dispersion of a solute in a channel low. - Phys. Fluids, vol.14, pp.19-20.
• Stokes V.K. (1966): Couple stresses in fluids. - Physics of Fluids, vol.9, pp.1709-1715.