The three‐dimensional instability of strained vortices in a viscous fluid
作者:
M. J. Landman,
P. G. Saffman,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1987)
卷期:
Volume 30,
issue 8
页码: 2339-2342
ISSN:0031-9171
年代: 1987
DOI:10.1063/1.866124
出版商: AIP
数据来源: AIP
摘要:
The recent theory describing 3‐D exact solutions of the Navier–Stokes equations is applied to the problem of stability of 2‐D viscous flow with elliptical streamlines. An intrinsically inviscid instability mechanism persists in all such flows provided the length scale of the disturbance is sufficiently large. Evidence is presented that this mechanism may be responsible for 3‐D instabilities in high Reynolds number flows whose vortex structures can be locally described by elliptical streamlines.
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