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Stagnation flow with a temperature-dependent viscosity

Published online by Cambridge University Press:  20 April 2006

Steven H. Emerman
Affiliation:
Department of Geological Sciences, Cornell University, Ithaca, New York 14853
D. L. Turcotte
Affiliation:
Department of Geological Sciences, Cornell University, Ithaca, New York 14853

Abstract

In this paper we derive solutions for two stagnation flows of an incompressible Newtonian fluid with infinite Prandtl number and exponentially temperature-dependent viscosity. The two stagnation flows are the impingement of a hot fluid against a cold wall and against a cold half-space of the same material. We find that the same solutions apply to both axisymmetric and two-dimensional flows. We apply these solutions to the thinning of the Earth's lithosphere by a mantle plume. The equilibrium lithospheric thickness and the rate of lithospheric thinning are obtained.

Type
Research Article
Copyright
© 1983 Cambridge University Press

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References

Brun, J. P. & Cobbold, P. R. 1980 Strain heating and thermal softening in continental shear zones: a review. J. Struct. Geol. 2, 149.
Crouch, S. T. 1978 Thermal origin of mid-plate hot-spot swells Geophys. J. R. Astr. Soc. 55, 451.Google Scholar
Crouch, S. T. 1981 The Darfur swell, Africa: gravity constraints on its isostatic compensation. Geophys. Res. 8, 877.
Detrick, R. S. & Crough, S. T. 1978 Island subsidence, hot spots, and lithospheric thinning J. Geophys. Res. 83, 1236.Google Scholar
Frank-Kambnetsky, D. A. 1939 Calculation of thermal explosion limits Acta Phys.-Chim. URSS 10, 365.Google Scholar
Kohlstedt, D. L., Goetze, C. & Durham, W. B. 1976 Experimental deformation of single crystal olivine with application to flow in the mantle. In The Physics and Chemistry of Minerals and Rocks (ed. R. G. J. Strens), p. 35. Wiley.
Landau, L. D. & Lifshitz, E. M. 1959 Fluid Mechanics. Pergamon.
Mckenzie, D. P. 1977 Surface deformation, gravity anomalies and convection Geophys. J. R. Astr. Soc. 48, 211.Google Scholar
Mckenzie, D. P. & Weiss, N. 1980 The thermal history of the earth. In The Continental Crust and its Mineral Deposits (ed. D. W. Strangway), p. 575. Geol. Assn Can. Spec. Paper no. 20.
Morgan, W. J. 1971 Convection plumes in the lower mantle Nature 230, 42.Google Scholar
Morris, S. 1981 On buoyantly driven creeping flows with strongly temperature-dependent viscosity. Part 1. The steady motion of a hot sphere (unpublished manuscript).
Oxburgh, E. R. & Turcotte, D. L. 1978 Mechanisms of continental drift Rep. Prog. Phys. 41, 1249.Google Scholar
Parmentier, E. M., Turcotte, D. L. & Torrance, K. E. 1975 Numerical experiments on the structure of mantle plumes J. Geophys. Res. 80, 4417.Google Scholar
Penner, S. S. 1957 Chemistry Problems in Jet Propulsion. Pergamon.
Roberts, L. 1958 On the melting of a semi-infinite body of ice placed in a hot stream of air J. Fluid Mech. 4, 505.Google Scholar
Schlichting, H. 1979 Boundary-Layer Theory, 7th edn. McGraw-Hill.
Turcotte, D. L. 1960 The melting of ice in a hot humid stream of air J. Fluid Mech. 8, 123.Google Scholar
Turcotte, D. L. 1981 Some thermal problems associated with magma migration J. Volc. Geotherm. Res. 10, 267.Google Scholar
Withjack, M. 1979 A convective heat transfer model for lithospheric thinning and crustal uplift J. Geophys. Res. 84, 3008.Google Scholar