Accession Number:

ADA505166

Title:

Particle Deposition onto Enclosure Surfaces

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA

Personal Author(s):

• Liu, De-Ling

Report Date:

2009-08-20

Pagination or Media Count:

61.0

Abstract:

In space applications, the main concern of particle deposition arises from the undesirable effects of surface obscuration on contamination-sensitive surfaces. The development of effective mitigation strategies to minimize particulate contamination requires the understanding of particle transport and deposition as well as the associated physical factors affecting the processes. The knowledge gleaned from the state-of-the-art literature review presented here can be applied to an enclosure scale as small as a spacecraft payload cavity, or as large as a clean room in a manufacturingprocessing facility. The insights from studying the physical processes that influence the rate of particle deposition within an enclosure are expected to provide a strong scientific foundation to benefit various aspects of aerospace contamination control needs.

Descriptors:

• *SPACE TECHNOLOGY
• *CONTROLLED ATMOSPHERES
• *PARTICULATES
• *PARTICLES
• *DEPOSITION
• *SURFACES
• *SPACECRAFT
• CONVECTION(ATMOSPHERIC)
• CONTAMINATION
• SENSITIVITY
• STATE OF THE ART
• VELOCITY
• OBSCURATION
• PAYLOAD
• TURBULENT DIFFUSION
• MANUFACTURING

Subject Categories:

• Meteorology
• Thermodynamics
• Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE