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Steady vortex flows obtained from an inverse problem

Published online by Cambridge University Press:  17 April 2009

B. Emamizadeh
Affiliation:
Department of Mathematics, Iran University of Science and Technology, Narmak 16844, Tehran, Iran and Institute for Studies in Theoretical Physics and Mathematics, Niavaran square, Tehran, Iran
F. Bahrami
Affiliation:
Department of Mathematics, University of Tarbiat Modarres, Tehran, Iran
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In this paper we prove the existence of solutions to an inverse semilinear elliptic partial differential equation. Physically, solutions represent stream functions of steady planar flows with bounded vortices. The kinetic energy functional is maximised over the set of rearrangements of a given function.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 2002

References

[1]Adams, R.A., Sobolev spaces, Pure and Applied Maths. 65 (Academic Press, New York, London, 1975).Google Scholar
[2]Badiani, T.V., ‘Existence of steady symmetric vortex pairs on a planar domain with an obstacle’, Math. Proc. Cambridge Philos. Soc. 123 (1998), 335384.CrossRefGoogle Scholar
[3]Benjamin, T.B., ‘The alliance of practical and analytical insights into the nonlinear problems of fluid mechanics’, in Applications of methods of functional analysis to problems in mechanics, Lecture Notes in Mathematics 503 (Springer-Verlag, Berlin, 1976), pp. 829.CrossRefGoogle Scholar
[4]Burton, G.R., ‘Rearrangements of functions, maximisation of convex functionals and vortex rings’, Math. Ann. 276 (1987), 225253.CrossRefGoogle Scholar
[5]Burton, G.R. and Emamizadeh, B., ‘A constrained variational problem for steady vortices in a shear flow’, Comm. Partial Differential Equations 24 (1999), 13411365.CrossRefGoogle Scholar
[6]Emamizadeh, B., ‘Steady vortex in a uniform shear flow of an ideal fluid’, Proc. Roy. Soc. Edinburgh Sect. A 130 (2000), 801812.CrossRefGoogle Scholar
[7]Emamizadeh, B., ‘Existence of a steady flow with a bounded vortex in an unbounded domain’, J. Sciences Islam. Repub. Iran 12 (2001), 5763.Google Scholar
[8]Gilbarg, D., Trudinger, N.S., Elliptic partial differential equations of second order, (Second edition) (Springer-Verlag, Berlin, New York, 1977).CrossRefGoogle Scholar
[9]Grisvard, P., Singularities in boundary value problems, Research in Applied Mathematics 22 (Springer-Verlag, Berlin, 1992).Google Scholar
[10]Lin, C.C., On the notions of vortices in two dimensions (Univ. of Toronto Press, Toronto, 1943).Google Scholar
[11]Turkington, B., ‘On steady vortex flow in two dimensions, I’, Comm. Partial Differential Equations 8 (1983), 9991030.CrossRefGoogle Scholar
[12]Turkington, B., ‘On steady vortex flow in two dimensions, II’, Comm. Partial Differential Equations 8 (1983), 10311071.CrossRefGoogle Scholar