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Effect of boundary reaction on solute dispersion in pulsatile flow through a tube

  • Bijoy S. Mazumder (a1) (a2) and Samir K. Das (a3)
Abstract

This paper examines the streamwise dispersion of passive contaminant molecules released in a time-dependent laminar flow through a tube in the presence of boundary absorption or a catalytic wall reaction, which causes a depletion of contaminant in the flow. A finite-difference implicit scheme has been used to solve the unsteady convective–diffusion equation for all time. Here it is shown how the mixing of the cross-sectionally integrated concentration of contaminant molecules is influenced by the frequency of pressure pulsation and the heterogeneous reaction at the boundary. The behaviour of the dispersion coefficient due to the shear effects of steady, oscillatory, and the combined action of steady and periodic currents have been examined separately. The comparison reveals that for all cases the dispersion coefficient asymptotically reaches a stationary state after a certain time and it decreases with the absorption parameter. The increased wall absorption causes negatively skewed deviations from Gaussianity.

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Anderson, D. A., Tannehill, J. C. & Pletcher, R. H., 1984 Computational Fluid Mechanics and Heat Transfer. Hemisphere.
Andersson, B. & Berglin, T., 1981 Dispersion of laminar flow through a circular tube. Proc. R. Soc. Lond. A 377, 251268.
Aris, R.: 1956 On the dispersion of a solute in a fluid flowing through a tube. Proc. R. Soc. Lond. A 235, 6777.
Arts, R.: 1960 On the dispersion of a solute in pulsating flow through a tube. Proc. R. Soc. Lond. A 259, 370376.
Barton, N. G.: 1983 On the method of moments for solute dispersion. J. Fluid Mech. 126, 205218.
Barton, N. G.: 1984 An asymptotic theory for dispersion of reactive contaminants in parallel flow. J. Austral. Math. Soc. B 25, 287310.
Barton, N. G. & Stokes, A. N., 1986 A computational method for shear dispersion in parallel flow. In Computational Techniques and Applications, CTAC-85 (ed. J. Noye & R. May), pp. 345355. North-Holland.
Chatwin, P. C.: 1970 The approach to normality of the concentration distribution of solute in a solvent flowing along a straight pipe. J. Fluid Mech. 43, 321352.
Chatwin, P. C.: 1975 On the longitudinal dispersion of passive contaminant in oscillatory flows in tubes. J. Fluid Mech. 71, 513527.
Fischer, H. B., List, E. J., Koh, R. C. Y., Imberger, J. & Brooks, N. H., 1979 Mixing in Inland and Coastal Waters. Academic.
Gill, W. N. & Ananthakrishnan, V., 1967 Laminar dispersion in capillaries: Part 4. The slug stimulus. AIChE J. 13, 801807.
Gill, W. N., Ruckenstein, E. & Hsieh, H. P., 1975 Homogeneous models for porous catalysts and tubular reactors with heterogeneous reactions. Chem. Eng Sci. 30, 685694.
Gill, W. N. & Sankarasubramanian, R., 1970 Exact analysis of unsteady convective diffusions. Proc. R. Soc. Lond. A 316, 341350.
Gupta, P. S. & Gupta, A. S., 1972 Effects of homogeneous and heterogeneous reactions on the dispersion of a solute in the laminar flow between two plates. Proc. R. Soc. Lond. A 330, 5963.
Güven, O., Molz, F. J. & Melville, J. G., 1984 An analysis of dispersion in a stratified aquifer. Wat. Resour. Res. 20, 13371354.
Holley, E. R., Harleman, D. R. F. & Fischer, H. B. 1970 Dispersion in homogeneous estuary flow. J. Hydraul. Div. ASCE 96, 16911709.
Jimenez, C. F. & Sullivan, P. J., 1984 Contaminant dispersion in some time-dependent laminar flows. J. Fluid Mech. 142, 5777.
Lapidus, L. & Pinder, G. F., 1982 Numerical Solution of Partial Differential Equations in Science and Engineering. Wiley-Interscience.
Mazumder, B. S. & Das, S. K., 1989 Dispersion of contaminant in oscillatory flow through a pipe – computation of moments. Acta Mech. 80, 151156.
Mehta, R. V., Merson, R. L. & Mccoy, B. J., 1974 Hermite polynomial representation of chromatography elution curves. J. Chromatogr. 88, 16.
Mukherjee, A. & Mazumder, B. S., 1988 Dispersion of contaminant in oscillatory flows. Acta Mech. 74, 107122.
Okubo, A.: 1967 The effect of shear in an oscillatory current on horizontal diffusion from an instantaneous source. Intl J. Oceanol. Limnol. 1, 194204.
Purnama, A.: 1988 Boundary retention effects upon contaminant dispersion in parallel flows. J. Fluid Mech. 195, 393412.
Purtell, L. P.: 1981 Molecular diffusion in oscillating laminar flow in a pipe. Phys. Fluids 24, 789793.
Sankarasubramanian, R. & Gill, W. N., 1973 Unsteady convective diffusion with interphase mass transfer. Proc. R. Soc. Lond A 333, 115132.
Schlichting, H.: 1966 Boundary Layer Theory. McGraw-Hill.
Sexl, Th., 1930 Uber den von E. G. Richardson entdeckten ‘Annulareffekt’. Z. Phys. 61, 349.
Smith, R.: 1982 Contaminant dispersion in oscillatory flows. J. Fluid Mech. 114, 379398.
Smith, R.: 1983a The contraction of contaminant distributions in reversing flows. J. Fluid Mech. 129, 137151.
Smith, R.: 1983b Effects of boundary absorption upon longitudinal dispersion in shear flows. J. Fluid Mech. 134, 161177.
Taylor, G. I.: 1921 Diffusion by continuous movements. Proc. Lond. Math. Soc. 20, 196211.
Taylor, G. I.: 1953 Dispersion of solute matter in solvent flowing slowly through a tube. Proc. R. Soc. Lond. A 219, 186203.
Uchida, S.: 1956 The pulsating viscous flow superposed on the steady laminar motion of incompressible fluid in a circular pipe. Z. Angew. Math. Phys. 7, 403422.
Valentine, E. M. & Wood, I. R., 1977 Longitudinal dispersion with dead zones. J. Hydraul. Div. ASCE 103, 975990.
Yasuda, H.: 1984 Longitudinal dispersion of matter due to the shear effect of steady and oscillatory currents. J. Fluid Mech. 148, 383403.
Yasuda, H.: 1989 Longitudinal dispersion of suspended particles in oscillatory currents. J. Mar. Res. 47, 153168.
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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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