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Computing Fluxes Of Molecules On And Near A SpacecraftMolecular Flux (MOLFLUX) computer code versatile program used to compute following environmental effects induced by spacecraft: fluxes of molecules to, and deposition of molecules on, surfaces; densities and column densities of molecules in surrounding space, and return fluxes of molecules to surfaces caused by both collisions of molecules with ambient atmosphere and by self-scattering. Includes capability to predict buildup in density of ambient gas in front of surfaces exposed to ram conditions by specifying ambient flux rates for all species impinging on surfaces. Surface chemical reactions represented as rates of emission from surfaces. User has option to modify spacecraft configurations and sources of contamination, and to choose which critical surfaces to examine. Written in FORTRAN and C language.
Document ID
19950065336
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Ehlers, H. K.
(NASA Lyndon B. Johnson Space Center, Houston, TX.)
Rios, E. R.
(Lockheed Engineering & Sciences Co.)
Hakes, C. L.
(Lockheed Engineering & Sciences Co.)
Rodriguez, R. T.
(Lockheed Engineering & Sciences Co.)
Date Acquired
August 17, 2013
Publication Date
April 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 4
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
MSC-22260
Accession Number
95B10177
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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