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Science Support for Space-Based Droplet Combustion: Drop Tower Experiments and Detailed Numerical ModelingThis program supports the engineering design, data analysis, and data interpretation requirements for the study of initially single component, spherically symmetric, isolated droplet combustion studies. Experimental emphasis is on the study of simple alcohols (methanol, ethanol) and alkanes (n-heptane, n-decane) as fuels with time dependent measurements of drop size, flame-stand-off, liquid-phase composition, and finally, extinction. Experiments have included bench-scale studies at Princeton, studies in the 2.2 and 5.18 drop towers at NASA-LeRC, and both the Fiber Supported Droplet Combustion (FSDC-1, FSDC-2) and the free Droplet Combustion Experiment (DCE) studies aboard the shuttle. Test matrix and data interpretation are performed through spherically-symmetric, time-dependent numerical computations which embody detailed sub-models for physical and chemical processes. The computed burning rate, flame stand-off, and extinction diameter are compared with the respective measurements for each individual experiment. In particular, the data from FSDC-1 and subsequent space-based experiments provide the opportunity to compare all three types of data simultaneously with the computed parameters. Recent numerical efforts are extending the computational tools to consider time dependent, axisymmetric 2-dimensional reactive flow situations.
Document ID
19970020620
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Marchese, Anthony J.
(Princeton Univ. NJ United States)
Dryer, Frederick L.
(Princeton Univ. NJ United States)
Date Acquired
August 17, 2013
Publication Date
May 1, 1997
Publication Information
Publication: Fourth International Microgravity Combustion Workshop
Subject Category
Inorganic And Physical Chemistry
Accession Number
97N21893
Funding Number(s)
CONTRACT_GRANT: NCC3-487
CONTRACT_GRANT: NAG3-1231
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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