TY - GEN
T1 - Interfacial heat transfer during droplet impact on a solid surface
T2 - ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
AU - Bhardwaj, Rajneesh
AU - Longtin, Jon P.
AU - Attinger, Daniel
N1 - Publisher Copyright:
Copyright © 2007 by ASME.
PY - 2007
Y1 - 2007
N2 - The objective of this work is to understand the coupling of fluid dynamics and heat transfer during the impact of a millimeter-size water droplet on a flat, solid glass substrate. In this work, a finiteelement model is presented which simulates the transient fluid dynamics and heat transfer during the droplet deposition process, considering Laplace forces on the liquid-gas boundary, and the dynamics of wetting. A novel, experimental laser-based method is used to measure temperatures at the solid-liquid interface. This method is based on a thermoreflectance technique and provides unprecedented temporal and spatial resolutions of 1 microsecond and 20 micrometer, respectively. Matching between simulations, temperature measurements and high-speed visualization allows the determination of the interfacial heat transfer coefficient.
AB - The objective of this work is to understand the coupling of fluid dynamics and heat transfer during the impact of a millimeter-size water droplet on a flat, solid glass substrate. In this work, a finiteelement model is presented which simulates the transient fluid dynamics and heat transfer during the droplet deposition process, considering Laplace forces on the liquid-gas boundary, and the dynamics of wetting. A novel, experimental laser-based method is used to measure temperatures at the solid-liquid interface. This method is based on a thermoreflectance technique and provides unprecedented temporal and spatial resolutions of 1 microsecond and 20 micrometer, respectively. Matching between simulations, temperature measurements and high-speed visualization allows the determination of the interfacial heat transfer coefficient.
UR - https://www.scopus.com/pages/publications/44249090940
U2 - 10.1115/IMECE2007-43087
DO - 10.1115/IMECE2007-43087
M3 - Conference contribution
AN - SCOPUS:44249090940
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 1155
EP - 1167
BT - Heat Transfer, Fluid Flows, and Thermal Systems
PB - American Society of Mechanical Engineers (ASME)
Y2 - 11 November 2007 through 15 November 2007
ER -