A Quantitative Assessment of Droplet Sizes in Atmospheric and Engine Environments
Powell, Joshua W.
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https://hdl.handle.net/2142/83931
Description
Title
A Quantitative Assessment of Droplet Sizes in Atmospheric and Engine Environments
Author(s)
Powell, Joshua W.
Issue Date
2009
Doctoral Committee Chair(s)
Chia-Fon F. Lee
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
No discernible difference was seen between exciplex and pentanone tracers in atmospheric conditions and both gave good agreement with the PDA data. The PDA typically reported a wider spray because had to record for a much longer time to pick up enough droplets, increasing the chances of picking up outlying droplets that would not be seen in the much faster PDS imaging. PDS generally showed slightly larger SMD where the spray cone was. This was because PDS was not biased towards the more statistically likely smaller droplets. (Abstract shortened by UMI.).
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