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EXPERIMENT
Behaviour of dense granular matter in 0 g under vibration
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 | Fundamental Physics: Physics of plasmas and solid/liquid dust particles |
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 | 50th ESA Parabolic Flight Campaign |
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 | P. Evesque (1), Y. Garrabos (2), F. Palencia (2), M. Hou (3), A. Garci-Martin (4), D. Maza (4), N. Vandewalle (5) |
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 | | (1) | Lab MSSMat
CNRS - Ecole Centrale Paris (ECP)
Grande Voie des Vignes
92295 Chatenay-Malabry
FRANCE
| | (2) | Université Bordeaux I
ICMCB-CNRS - UPR 9048
Institut de Chimie de la Matière Condensée de Bordeaux
87, Avenue du Docteur Schweitzer
33608 PESSAC Cedex
FRANCE
| | (3) | Laboratory of Softmatter Physics
Institute of Physics (IOP)
Chinese Academy of Sciences (CAS)
8 Nan-San Street
Zhong-Guan-Cun
Beijing 100190
CHINA
| | (4) | Department of Physics and Applied Mathematics
Universidad de Navarra
Edificio Los Castaños
C/Irunlarrea S.N. - Aptdo. 177
31080 Pamplona
SPAIN | | (5) | Physics Department
University of Liège
Allée du 6 août 17
B400 Liège
BELGIUM
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 | | [1] | P. Evesque, (2010), "Matériaux granulaires et impesanteur", Centraliens, 599, pp. 58-62. | | [2] | P. Evesque, (2010), "Microgravity and Dissipative Granular Gas in a vibrated container: a gas with an asymmetric speed distribution in the vibration direction, but with a null mean speed everywhere", Poudres & Grains, 18, http://arxiv.org/abs/1112.3886v1, pp. 1-19. | | [3] | Y. Chen, P. Evesque, M. Hou, C. Lecoutre, F. Palencia, Y. Garrabos, (2011), "Long range boundary effect of 2D intermediate number density vibro-fluidized granular media in micro-gravity", Journal of Physics: Conference Series - ISPS 2011, Bonn, Germany, (11-15 July 2011), 327, 1, doi:10.1088/1742-6596/327/1/012033, pp. 012033. | | [4] | P. Evesque, Y. Garrabos, G. Zhai, M. Hou, (2011), "Granular media under vibration in zero-gravity: transition from rattling to granular gas", Poudres & Grains, 19, 1, pp. 1-4. | | [5] | Referee, P. Evesque, (2011), "Commentaires sur Poudres & Grains 17(20) 577-596 (2009) 'Microgravité et Gaz Granulaire Dissipatif dans un système vibré: un gaz à vitesse dissymétrique, mais à moyenne nulle'", Poudres & Grains, 19, 2, pp. 5-11. | | [6] | P. Evesque, (2011), "On the Editorial Policy in Science: Quelques problèmes "censurés" de "micro-nano" fluidique granulaire en micro gravité", Poudres & Grains, 19, 3, pp. 12-16. | | [7] | P. Evesque, (2011), "Reading notes on: 'Les milieux granulaires - Entre fluide et solide' by B. Andreotti, Y. Forterre et O. Pouliquen", Poudres & Grains, 19, 3, pp. 17-18. |
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 | The main goal of the present experiment is to test the general behaviour of dense granular matter in 0-g conditions condition, to learn how to manage grains in space and how to use vibrations to help grain manipulation.
Here dense samples will be used submitted to vibrations and comparisons will be achieved with reference behaviour on earth. In particular, we want to test the ability of the system to generate convection flows in 0g when submitted to vibration, as it is generated on earth. Also a program of ad hoc experiment are planned to help construction of experimental set-up for the SJ-10 Chinese satellite. The topic of this experimental set-up will be to study grain transfer from different boxes connected to one another via slits using vibration, as a function of the slit position and size, and to test the effect of “condensation” in 0g. |
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 | A LDS electromagnetic shaker is used to shake different samples containing grains. It is controlled via a PC and Labview so that a set of different vibration parameters is programmed at each parabola. The vibrator can deliver sinusoid shaking in the range 30-120Hz up to 100g. The vibration will force the grains to move and interaction with lateral windows through solid friction is expected to enforce a convection pattern which is planned to be studied.
The motion of the grains is recorded using fast video recording (with adjustable frame rate, up to 500 frames/s) using particle tracking technique. Different cells geometries will be tested, and position of enlightenments will be tested. Also test of different cameras can/will be made. |
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 | The results of the experiments can be found in the Reference Documents [1] to [7], listed above. |
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 |  | C. Lecoutre is explaining the experiment. |  |
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 | Olivier Minster (e-mail: olivier.minster@esa.int) |
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