Molecular-transport modeling using direct simulation Monte Carlo methods for use in analyzing spacecraft and spacecraft instruments

Bruce Matheson; Joseph Hueser D.D.S.

doi:10.1117/12.795604

2 September 2008 Molecular-transport modeling using direct simulation Monte Carlo methods for use in analyzing spacecraft and spacecraft instruments

Bruce Matheson, Joseph Hueser D.D.S.

Author Affiliations +

Proceedings Volume 7069, Optical System Contamination: Effects, Measurements, and Control 2008; 70690F (2008) https://doi.org/10.1117/12.795604
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

The Direct Simulation Monte Carlo (DSMC) Analysis Code (DAC), as released by NASA, is a general purpose, gas dynamic, transport analysis suite of codes. These codes have been acquired by Ball Aerospace & Technologies Corp. (BATC) through a software usage agreement and have been modified to do a more detailed analysis of contaminant molecular transport of spacecraft and spacecraft instruments over mission lifetimes, typically 5 to 7 years. This transport model takes advantage of the proven algorithms within DAC to handle complex surface geometries and time-dependant gas dynamics. Additions to the code include diffusion of contaminants through solid surfaces, temperature and coverage-dependant adsorption/desorption for the contaminants being modeled, and input data for molecular diameters, molecular weights, and diffusion parameters for the common contaminants found in spacecraft materials and coatings.

Citation Download Citation

Bruce Matheson and Joseph Hueser D.D.S. "Molecular-transport modeling using direct simulation Monte Carlo methods for use in analyzing spacecraft and spacecraft instruments", Proc. SPIE 7069, Optical System Contamination: Effects, Measurements, and Control 2008, 70690F (2 September 2008); https://doi.org/10.1117/12.795604

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available