Unsteady Swirling Flow of a Compressible Fluid Over an Infinite Disk with a Magnetic Field or Suction

Bhattacharyya, S and Nath, G (1992) Unsteady Swirling Flow of a Compressible Fluid Over an Infinite Disk with a Magnetic Field or Suction. In: International Journal of Non-Linear Mechanics, 27 (3). pp. 391-404.

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Abstract

The laminar boundary layer over a fixed infinite disk induced by a time-dependent vortex flow of compressible fluid is considered. The free-stream velocity has been taken as tangential and varies as a power of radius, i.e. $\nu_\infty\sim r^{-n}\phi(t)$, where $\phi(t)$ is an arbitrary function of time t. Several free-stream velocity distributions have been examined. The effect of a magnetic field and suction are also included in the analysis. The solutions are studied for various values of n in the range $(-1 \leq n \leq 1)$ and also for several values of disk-to-fluid temperature ratio. The oscillations in the velocity profiles decrease with time in the absence of a magnetic field and suction for an accelerating free stream. Heat transfer at the wall is affected slightly by the time variation of free-stream velocity. Solution is possible only for a certain range of n unless a magnetic field or suction is applied.

Item Type:	Journal Article
Publication:	International Journal of Non-Linear Mechanics
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Department/Centre:	Division of Physical & Mathematical Sciences > Mathematics
Date Deposited:	25 Aug 2008
Last Modified:	19 Sep 2010 04:31
URI:	http://eprints.iisc.ac.in/id/eprint/8302

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