Statistics – Computation
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aiaa.meetw....d&link_type=abstract
AIAA, Aerospace Sciences Meeting and Exhibit, 31st, Reno, NV, Jan. 11-14, 1993, 8 p.
Statistics
Computation
Condensation, Cosmic Dust, Reduced Gravity, Solidification, Weightlessness Simulation, C-135 Aircraft, Cosmochemistry, Crystallization, Gas-Solid Interactions, Stellar Envelopes
Scientific paper
The condensation behavior of refractory grains near stars was investigated in an experiment which used a specially designed apparatus flown aboard NASA's Reduced Gravity aircraft. The apparatus consisted of a furnace in which a solid material (Zn or Mg) is vaporized into a temperature- and pressure-controlled chamber. Light scattered from the grains was recorded using a video system, and temperature measurements in the chamber were recorded throughout the microgravity period. The video and the temperature data are compared to models that predict the time dependence of the temperature- and vapor-pressure profiles to deduce the condensation behavior of the material. The joint U.S.-Italian program (named Stardust) for these experiments, designed to study refractory grain formation and aggregation, was set up to develop experimental and computational techniques for condensation studies under microgravity conditions.
Bussoletti Ezio
Colangeli Luigi
Dell'Aversana P.
Ferguson Frank
Lilleleht Lembit U.
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