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On the Validity of the Adiabatic Spreading Assumption in Droplet Impact Cooling

Published

Author(s)

William M. Healy, J G. Hartley, S I. Abdel-Khalik

Abstract

The effect of heat transfer on the spreading of a water droplet impacting a heated surface has been numerically investigated. The aim is to assess the validity of commonly made assumptions in spray cooling models which ignore heat transfer during the droplet spreading period. The results of this study indicate that while the amount of heat transfer during the droplet spreading period may, itself, be small, its impact on the liquid coverage area and the subsequent heat transfer to the resulting liquid film may be substantial.
Citation
International Journal of Heat and Mass Transfer
Volume
44
Issue
No. 20

Keywords

droplet impact, level set method, spray cooling, spreading dynamics

Citation

Healy, W. , Hartley, J. and Abdel-Khalik, S. (2001), On the Validity of the Adiabatic Spreading Assumption in Droplet Impact Cooling, International Journal of Heat and Mass Transfer, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860820 (Accessed June 19, 2024)

Issues

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Created October 1, 2001, Updated February 19, 2017