Particulate Contaminant Relocation During Shuttle Ascent

John J. Scialdone

doi:10.1117/12.967067

1 January 1987 Particulate Contaminant Relocation During Shuttle Ascent

John J. Scialdone

Proceedings Volume 0777, Optical Systems Contamination: Effects, Measurement, Control; (1987) https://doi.org/10.1117/12.967067
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

Abstract

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.

Citation Download Citation

John J. Scialdone "Particulate Contaminant Relocation During Shuttle Ascent", Proc. SPIE 0777, Optical Systems Contamination: Effects, Measurement, Control, (1 January 1987); https://doi.org/10.1117/12.967067

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