Advertisement

Astrophysics and Space Science

, Volume 276, Issue 1, pp 123–133 | Cite as

Stochastic Modeling of the Residual Acceleration Field in a Microgravity Environment

  • Jaume Casademunt
  • Jorge Viñals
Article

Abstract

We discuss fluid flows induced by thehigh-frequency components of the residual acceleration field onboard spacecraft (g-jitter) on representative experimental configurations.We study the statistics of g-jitter time series data from theNASA SL-J mission (SAMS-258), and discuss a recently introducedstochastic model of g-jitter. The examples studied are chosen to highlightintrinsically stochastic effects of g-jitter. They include free surfaceresonances, cavity flow, and inertial Brownian motion in suspensions. Thelatter is relevant for coarsening experiments in solid-liquid mixtures.

Keywords

Time Series Fluid Flow Brownian Motion Series Data Stochastic Modeling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Alexander, J.: 1990, Low-gravity experiment sensitivity to residual acceleration: a review, Microgravity sci. technol. 3, 52.Google Scholar
  2. Casademunt, J. and Viñals, J.: 1993, Convection induced by a fluctuating acceleration field, in: D. Siginer, R. Thompson and L. Trefethen (eds.), Fluid Mechanics Phenomena in Microgravity, Vol. 175. ASME, p. 133.Google Scholar
  3. Casademunt, J., Zhang, W., Viñals, J. and Sekerka. R.: 1993, Stability of a fluid surface in a microgravity environment, AIAA J. 31, 2017.Google Scholar
  4. DeLombard, R., McPherson, K., Moskowitz, M. and Hrovat, K.: 1997, Comparison Tools for Assessing the Microgravity Environment of Missions, Carriers and Conditions, Technical Report TM 107446, NASA.Google Scholar
  5. Koster, J. and Sani, R. (eds.): 1990, Low-Gravity Fluid Dynamics and Transport Phenomena, Vol. 130 of Progress in Aeronautics and Astronautics, AIAA, Washington.Google Scholar
  6. Kumar, K. and Tuckerman, L.: 1994, Parametric instability of the interface between two fluids, J. Fluid. Mech. 279, 49.Google Scholar
  7. Nelson, E.: 1991, An examination of anticipated g-jitter on Space Station and its effects on Materials Processes, Technical Report TM 103775, NASA.Google Scholar
  8. Thomson, J., Casademunt, J., Drolet, F. and Viñals, J.: 1997, Coarsening of solid-liquid mixtures in a random acceleration field, Phys. Fluids 9, 1336.Google Scholar
  9. Thomson, J., Casademunt, J. and Viñals, J.: 1995, Cavity flow induced by a fluctuating acceleration field, Phys. Fluids 7, 292.Google Scholar
  10. Walter, H. (ed.): 1987, Fluid Sciences and Materials Sciences in Space, Springer Verlag, New York.Google Scholar
  11. Zhang, W., Casademunt, J. and Viñals, J.: 1993, Study of the parametric oscillator driven by narrow band noise to model the response of a fluid surface to time-dependent accelerations, Phys. Fluids A 5, 3147.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Jaume Casademunt
    • 1
  • Jorge Viñals
    • 2
    • 3
  1. 1.Departament d'Estructura i Constituents de la Matèria, Facultat de FísicaUniversitat de BarcelonaBarcelonaSpain
  2. 2.Supercomputer Computations Research InstituteFlorida State UniversityTallahasseeUSA
  3. 3.Department of Chemical EngineeringFAMU-FSU College of EngineeringTallahasseeUSA

Personalised recommendations