Laser‐Induced Turbulence

Prasad, CR (1972) Laser‐Induced Turbulence. In: Applied Physics Letters, 20 (6). pp. 209-210.

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Abstract

In a recent experiment on laser beam transmission through an absorbing gas, the critical Reynold's number for the flow, induced by the heating of the gas, to become turbulent was found to be less than 30, which is many orders of magnitude smaller than that for pure shear flow in pipes. It is shown here that a Rayleigh number is the more appropriate criterion to characterize the stability of flow in this situation, and its value estimated in two limiting cases is found to bracket the expected critical Rayleigh number for vertical concentric cylinders.

Item Type:	Journal Article
Publication:	Applied Physics Letters
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	03 Jan 2012 08:59
Last Modified:	06 Nov 2018 07:20
URI:	http://eprints.iisc.ac.in/id/eprint/43006

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