NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Current status of droplet and liquid combustionThe present understanding of spray combustion in rocket engine, gas turbine, Diesel engine and industrial furnace applications is reviewed. In some cases, spray combustion can be modeled by ignoring the details of spray evaporation and treating the system as a gaseous diffusion flame; however, in many circumstances, this simplification is not adequate and turbulent two-phase flow must be considered. The behavior of individual droplets is a necessary component of two-phase models and recent work on transient droplet evaporation, ignition and combustion is considered, along with a discussion of important simplifying assumptions involved with modeling these processes. Methods of modeling spray evaporation and combustion processes are also discussed including: one-dimensional models for rocket engine and prevaporized combustion systems, lumped zone models (utilizing well-stirred reactor and plug flow regions) for gas turbine and furnace systems, locally homogeneous turbulent models, and two-phase models. The review highlights the need for improved injector characterization methods, more information of droplet transport characteristics in turbulent flow and continued development of more complete two-phase turbulent models
Document ID
19780047310
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Faeth, G. M.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: Progress in Energy and Combustion Science
Volume: 3
Issue: 4, 19
Subject Category
Inorganic And Physical Chemistry
Accession Number
78A31219
Funding Number(s)
CONTRACT_GRANT: NGR-39-009-077
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available