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Numerical Study of Horizontal Pneumatic Conveying of Powder in Different Gravitational Environments

[+] Author Affiliations
Santiago Laín, Leonardo Botina

Universidad Autónoma de Occidente, Cali, Colombia

Martin Sommerfeld

Martin Luther Universität, Halle (Saale), Germany

Paper No. AJK2011-12029, pp. 3269-3277; 9 pages
doi:10.1115/AJK2011-12029
From:
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by ASME

abstract

This paper evaluates the performance of horizontal pneumatic conveying under different gravity environments. An Euler-Lagrange approach validated versus ground experiments is employed to predict the relevant particle variables such as particle mass flux and mean conveying velocity in Lunar and micro-gravity conditions. Gravity reduced computations predict an increase of particle-wall collisions with the upper wall of the channel affecting greatly the particle mass flux profile in the case of low wall roughness and small particle mass loading. If gravitational settling is reduced, e.g. by means of higher wall roughness and/or higher particle mass loadings, particle mean conveying velocity is very similar in Earth and micro-gravity conditions.

Copyright © 2011 by ASME

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