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The Impact and Rebound of a Small Water Drop Striking a Hot Surface

<p> Water drops at their boiling point were projected
through a steam atmosphere to strike a surface which was
varied in temperature from 300 to 900 degrees Fahrenheit.
A high-speed motion picture study of the collision process
showed that, except at low surface temperatures, the drop
flattened out on impact and rebounded in a state of
oscillation. Measurements of the change in drop diameter
on collision indicated that the amount of evaporation due
to heat transfer from the surface was extremely small except
when the drop extensively wetted the surface. Solution of
a mathematical model of the initial impact dynamics and
models of heat transfer through a vapour film beneath the
drop and by direct liquid-surface contact confirmed
experimental observations. </p> / Thesis / Doctor of Philosophy (PhD)

Identiferoai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/19643
Date03 1900
CreatorsHarvey, Denis
ContributorsHoffman, T.W., Chemical Engineering
Source SetsMcMaster University
LanguageEnglish
Detected LanguageEnglish

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