Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-19T18:00:43.451Z Has data issue: false hasContentIssue false

Prandtl–Batchelor flow past a flat plate at normal incidence in a channel–inviscid analysis

Published online by Cambridge University Press:  26 April 2006

Colin Turfus
Affiliation:
Department of Mathematics, Sung Hwa University, Cheonan, S. Korea

Abstract

A calculation is made of the steady profile adopted by a touching pair of vortex regions with equal and opposite vorticity in a bounded uniform stream. A family of possible solutions is deduced, depending upon the magnitude of a (non-dimensionalized) vorticity parameter. A similar calculation is carried out incorporating a flat plate normal to the stream at the upstream end of the vortex configuration. The requirement of tangential separation at the plate tip selects a unique value of the vorticity. It is found that, as the width of the plate is reduced in relation to that of the channel, the vortex profile asymptotically approaches one member of the above mentioned family. The asymptotic form of the flow in the vicinity of the plate is deduced for this case and compared with a previous calculation.

Type
Research Article
Copyright
© 1993 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Batchelor, G. K. 1956 J. Fluid Mech. 1, 177.
Chernyshenko, S. I. 1982 Izv. Akad. Nauk SSR, Mekh, Zhidk, Gaza 1, 1015 (available in English translation).
Chernyshenko, S. I. 1984 Izv. Akad. Nauk SSR, Mekh, Zhidk, Gaza 2, 4045 (available in English as ‘The calculation of separated flows of low-viscosity liquids using the Batchelor model’. R. Aircraft Establ. Library Transl. 2133).
Chernyshenko, S. I. 1988 Appl. Math. Mech. 52, 746.
Chernyshenko, S. I. 1992a Stratified Sadovskii flow in a channel. J. Fluid Mech. (submitted).Google Scholar
Chernyshenko, S. I. 1992b High Reynolds-number asymptotics of the stationary flow through a row of bluff bodies. J. Fluid Mech. (submitted).Google Scholar
Childress, S. 1966 Phys. Fluids 9, 860.
Deem, G. S. & Zabusky, N. 1978 Phys. Rev. Lett. 40, 859.
O’Malley, K., Fitt, A. D., Jones, T. V., Ockendon, J. R. & Wilmott, P. 1991 J. Fluid Mech. 222, 139155.
Pullin, D. I. 1984 Q. J. Mech. Appl. Maths. 37, 619.
Riley, N. 1981 J. Engng. Maths. 15, 1527.
Sadovskii, V. S. 1971 Appl. Math. Mech. 35, 729.
Saffman, P. G. & Tanveer, S. 1982 Phys. Fluids 25, 1929.
Saffman, P. G. & Tanveer, S. 1984 J. Fluid Mech. 143, 351365.
Smith, F. T. 1985 J. Fluid Mech. 155, 175.
Smith, J. H. B. 1982 In Vortex Motion, (ed. H. G. Hornung & E.–A. Müller), pp. 157172. Vieweg.
Smith, J. H. B. 1986 Ann. Rev. Fluid Mech. 18, 221.