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The stability of an expanding circular vortex sheet

Published online by Cambridge University Press:  26 February 2010

D. W. Moore
Affiliation:
Imperial College, London.
R. Griffith-Jones
Affiliation:
Trinity College, Cambridge.
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Abstract

The stability against small disturbances which do not bend the vortex lines of a circular cylindrical vortex sheet of variable radius is examined. If the jump in tangential velocity across the sheet falls off with time faster than (time)–íthe disturbances are bounded (or grow less rapidly than linearly with time) so that the sheet is effectively stable. If the tangential velocity jump falls off with time slower than (time)–í the sheet is unstable.

Type
Research Article
Copyright
Copyright © University College London 1974

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References

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