Particulate Contaminant Relocation During Shuttle Ascent | Zendy

John J. Scialdone | Zendy

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Particulate Contaminant Relocation During Shuttle Ascent

Author(s) -

John J. Scialdone

Publication year - 1987

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.967067

Subject(s) - particulates , space shuttle , environmental science , bay , contamination , smoke , aerospace engineering , aerodynamic diameter , doors , meteorology , physics , geology , chemistry , engineering , organic chemistry , ecology , oceanography , biology , structural engineering

The dislodgement, venting, and redeposition of particles on a surface in the shuttle bay by the vibroacoustic, gravitational, and aerodynamic forces present during shuttle ascent have been investigated. The particles of different sizes which are displaced, vented, and redistributed have been calculated; and an estimate of the increased number of particles on certain surfaces and the decrease on others has been indicated. The average sizes, velocities, and length of time for certain particles to leave the bay following initial shuttle doors opening and thermal tests have been calculated based on indirect data obtained during several shuttle flights. Suggestions for future measurements and observations to characterize the particulate environment and the techniques to limit the in-orbit particulate contamination of surfaces and environment have been offered.

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