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Convection by a horizontal thermal gradient

Published online by Cambridge University Press:  14 August 2007

H. J. J. GRAMBERG
Affiliation:
OCIAM, Mathematical Institute, University of Oxford, Oxford OX1 3LB, UK
P. D. HOWELL
Affiliation:
OCIAM, Mathematical Institute, University of Oxford, Oxford OX1 3LB, UK
J. R. OCKENDON
Affiliation:
OCIAM, Mathematical Institute, University of Oxford, Oxford OX1 3LB, UK

Abstract

This paper considers a paradigm large-Prandtl-number, large-Rayleigh-number forced convection problem suggested by the batch melting process in the glass industry. Although the fluid is heated from above, non-uniform heating in the horizontal direction induces thermal boundary layers in which colder liquid is driven over hotter liquid. This leads to an interesting selection problem in the boundary layer analysis, whose resolution is suggested by a combination of analytical and numerical evidence.

Type
Papers
Copyright
Copyright © Cambridge University Press 2007

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References

Batchelor, G. K. 1954 Heat transfer by free convection across a closed cavity between vertical boundaries at different temperatures. Q. Appl. Maths. 12, 209233.Google Scholar
Batchelor, G. K. 1956 On steady laminar flow with closed streamlines at large Reynolds number. J. Fluid Mech. 1, 177190.CrossRefGoogle Scholar
Chiu-Webster, S., Hinch, E. J. & Lister, J. R. 2007 Very viscous horizonal convection. J. Fluid Mech. (submitted).CrossRefGoogle Scholar
Cormack, D. E., Leal, L. G. & Imberger, J. 1974 Natural convection in a shallow cavity with differentially heated end walls. Part 1. Asymptotic theory. J. Fluid Mech. 65, 209229.CrossRefGoogle Scholar
Daniels, P. G. 1993 High Rayleigh number thermal convection in a shallow laterally heated cavity. Proc. R. Soc. Lond. A 440, 274289.Google Scholar
Elder, J. W. 1965 Laminar free convection in a vertical slot. J. Fluid Mech. 23, 7798.Google Scholar
Gill, Á. E. 1966 The boundary-layer regime for convection in a rectangular cavity. J. Fluid Mech. 26, 515536.CrossRefGoogle Scholar
Krause, D. & Loch, H. 2002 Mathematical Simulation in Glass Technology. Springer.Google Scholar