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Microgravity nucleation and particle coagulation experiments supportResearchers at NASA Goddard Space Flight Center have embarked on a program to study the formation and growth of cosmic grains. This includes experiments on the homogeneous nucleation of refractory vapors of materials such as magnesium, lead, tin, and silicon oxides. As part of this program, the Chemical Engineering Department of the University of Virginia has undertaken to develop a math model for these experiments, to assist in the design and construction of the apparatus, and to analyze the data once the experiments have begun. Status Reports 1 and 2 addressed the design of the apparatus and the development of math models for temperature and concentration fields. The bulk of this report discusses the continued refinement of these models, and the assembly and testing of the nucleation chamber along with its ancillary equipment, which began in the spring of 1988.
Document ID
19890001685
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lilleleht, L. U. (Virginia Univ. Charlottesville., United States)
Ferguson, F. T. (Virginia Univ. Charlottesville., United States)
Stephens, J. R. (Matrix Corp. Santa Fe, N. Mex., United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1988
Subject Category
Materials Processing
Report/Patent Number
NAS 1.26:183282
NASA-CR-183282
UVA/528260/CHE89/103
Accession Number
89N11056
Funding Number(s)
CONTRACT_GRANT: NAG5-865
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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