NDLI: The structure of evaporating and combusting sprays: measurements and predictions

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The structure of evaporating and combusting sprays: measurements and predictions

Content Provider	NASA Technical Reports Server (NTRS)
Author	Shuen, J. S. Faeth, G. M. Solomon, A. S. P.
Copyright Year	1982
Description	An apparatus was constructed to provide measurements in open sprays with no zones of recirculation, in order to provide well-defined conditions for use in evaluating spray models. Measurements were completed in a gas jet, in order to test experimental methods, and are currently in progress for nonevaporating sprays. A locally homogeneous flow (LHF) model where interphase transport rates are assumed to be infinitely fast; a separated flow (SF) model which allows for finite interphase transport rates but neglects effects of turbulent fluctuations on drop motion; and a stochastic SF model which considers effects of turbulent fluctuations on drop motion were evaluated using existing data on particle-laden jets. The LHF model generally overestimates rates of particle dispersion while the SF model underestimates dispersion rates. The stochastic SF flow yield satisfactory predictions except at high particle mass loadings where effects of turbulence modulation may have caused the model to overestimate turbulence levels.
File Size	1986040
Page Count	44
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19830014279
Archival Resource Key	ark:/13960/t3324rx8t
Language	English
Publisher Date	1982-03-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Turbulent Flow Gas Flow Stochastic Processes Homogeneity Flow Velocity Mathematical Models Sprayers Drop Size Separated Flow Spray Characteristics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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