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Scaling analysis: Equivalence of convective and radiative heating of levitated droplet

Saha, Abhishek and Basu, Saptarshi and Kumar, Ranganathan (2012) Scaling analysis: Equivalence of convective and radiative heating of levitated droplet. In: APPLIED PHYSICS LETTERS, 100 (20).

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Official URL: http://dx.doi.org/10.1063/1.4720092


This letter develops theoretical relationships for equilibrium timescale and temperature scale of a vaporizing droplet in a convective and a radiative environment. The transient temperature normalized by the respective scales exhibits a unified profile for both modes of heating. The analysis allows for the prediction of the required laser flux to show its equivalence in a corresponding heated gas stream. The theoretical equivalence shows good agreement with experiments across a range of droplet sizes. Simple experiments can be conducted in a levitator to extrapolate information in realistic convective environments like combustion and spray drying. (C) 2012 American Institute of Physics. http://dx.doi.org/10.1063/1.4720092]

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the American Institute of Physics
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 30 Jun 2012 07:16
Last Modified: 30 Jun 2012 07:16
URI: http://eprints.iisc.ac.in/id/eprint/44694

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