LDEF environment modeling updates
- Applied Science Technology, Inc., Littleton, CO (United States)
An updated gas dynamics model for gas interactions around the LDEF is presented that includes improved scattering algorithms. The primary improvement is more accurate predictions of surface fluxes in the wake region. The code used is the Integrated Spacecraft Environments Model (ISEM). Additionally, initial results of a detailed ISEM prediction model of the Solar Array Passive LDEF Experiment (SAMPLE), A0171, is presented. This model includes details of the A0171 geometry and outgassing characteristics of the many surfaces on the experiment. The detailed model includes the multiple scattering that exists between the ambient atmosphere, LDEF outgassing, and atomic oxygen erosion products. Predictions are made for gas densities, surface fluxes and deposition at three different time periods of the LDEF mission.
- Research Organization:
- NASA Langley Research Center, Hampton, VA (United States)
- OSTI ID:
- 42731
- Report Number(s):
- N-95-23796; NASA-CP-3275-PT-1; L-17430A-PT-1; NAS-1.55:3275-PT-1; CONF-9311137-; TRN: 9523797
- Resource Relation:
- Conference: 3. long duration exposure flight (LDEF) symposium, Williamsburg, VA (United States), 8-12 Nov 1993; Other Information: PBD: Feb 1995; Related Information: Is Part Of LDEF: 69 Months in Space. Third Post-Retrieval Symposium, part 1; Levine, A.S.; PB: [10] p.
- Country of Publication:
- United States
- Language:
- English
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