Adachi, Masato and Balter, Michael and Cheng, Xiang and Drescher, Jörg and Li, Xiaotian and Sperl, Matthias and Zhao, Shaofan and Yu, Peidong (2021) Characteristics of a Magnetic Bulk Thermostat for Granular Gas Investigations in Microgravity. Microgravity Science and Technology, 33 (11), pp. 1-12. Springer. doi: 10.1007/s12217-020-09853-5. ISSN 0938-0108.
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Official URL: https://doi.org/10.1007/s12217-020-09853-5
Abstract
A magnetic thermostat employing soft-ferromagnetic particles and a varying magnetic field has been developed to investigate ahomogeneous granular gas system in microgravity. While the thermostat’s mechanism of creating homogeneous distribution ofthe particles was shown earlier, its characteristics have not been understood well due to limited access to a microgravityenvironment. Therefore, a parametric study by numerical simulation based on the discrete element method is carried out in thispaper to evaluate effects of tunable parameters in the thermostat. The result shows the capability of the system and provides awide range of options and improvements for future experiments. Moreover, it predicts that the thermostat allows variation ofhomogeneity and excitation level of the granular gas just by changing the magnetic parameters without using any mechanicalmeans. In addition, the suggested improvement is experimentally implemented and evaluated in a drop tower test.
Item URL in elib: | https://elib.dlr.de/140620/ | ||||||||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||||||||
Title: | Characteristics of a Magnetic Bulk Thermostat for Granular Gas Investigations in Microgravity | ||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | 18 January 2021 | ||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Microgravity Science and Technology | ||||||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||||||
Volume: | 33 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1007/s12217-020-09853-5 | ||||||||||||||||||||||||||||||||||||
Page Range: | pp. 1-12 | ||||||||||||||||||||||||||||||||||||
Publisher: | Springer | ||||||||||||||||||||||||||||||||||||
ISSN: | 0938-0108 | ||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||
Keywords: | Granular gas, Granular shaking, Magnetic thermostat, Drop tower experiment, Discrete element method | ||||||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Model systems | ||||||||||||||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||||||||||||||||||||||
Deposited By: | Sperl, Matthias | ||||||||||||||||||||||||||||||||||||
Deposited On: | 25 Jan 2021 09:03 | ||||||||||||||||||||||||||||||||||||
Last Modified: | 24 May 2022 23:46 |
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