TY - GEN
T1 - Energy-accommodation coefficient and drag coefficient modeling for stella and starlette
AU - Mehta, Piyush M.
AU - McLaughlin, Craig A.
AU - Lechtenberg, Travis F.
AU - Mance, Stephen
PY - 2012
Y1 - 2012
N2 - Energy-accommodation coefficient is an important factor in estimating satellite drag coefficients. Relevant work done over the last decade involving energy-accommodation has predominantly been in the 150-500 km altitude range. This paper presents a step toward modelling energy-accommodation coefficient in the 500-1000 km altitude range. Drag coefficients from different sources were used for a qualitative analysis to extract the accommodation coefficients for Stella and Starlette. This paper also examines the ability of Direct Simulation Monte Carlo (DSMC) methods to compute satellite drag coefficients with partial accommodation using Bird's DS3V module. Results show that the accommodation coefficients for Stella and Starlette vary in the range of 0.1-0.28 and 0.29-0.58 respectively. Results also show that Monte Carlo methods perform well in calculating drag coefficients and that DSMC provides a plausible method for determining drag coefficients for non-spherical satellites with estimates for energy- accommodation coefficient. Copyright
AB - Energy-accommodation coefficient is an important factor in estimating satellite drag coefficients. Relevant work done over the last decade involving energy-accommodation has predominantly been in the 150-500 km altitude range. This paper presents a step toward modelling energy-accommodation coefficient in the 500-1000 km altitude range. Drag coefficients from different sources were used for a qualitative analysis to extract the accommodation coefficients for Stella and Starlette. This paper also examines the ability of Direct Simulation Monte Carlo (DSMC) methods to compute satellite drag coefficients with partial accommodation using Bird's DS3V module. Results show that the accommodation coefficients for Stella and Starlette vary in the range of 0.1-0.28 and 0.29-0.58 respectively. Results also show that Monte Carlo methods perform well in calculating drag coefficients and that DSMC provides a plausible method for determining drag coefficients for non-spherical satellites with estimates for energy- accommodation coefficient. Copyright
UR - https://www.scopus.com/pages/publications/84883508772
UR - https://www.scopus.com/inward/citedby.url?scp=84883508772&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883508772
SN - 9781622769797
T3 - Proceedings of the International Astronautical Congress, IAC
SP - 5791
EP - 5801
BT - 63rd International Astronautical Congress 2012, IAC 2012
T2 - 63rd International Astronautical Congress 2012, IAC 2012
Y2 - 1 October 2012 through 5 October 2012
ER -