Granular flow experiment using artificial gravity generator at International Space Station.

ABSTRACT: Studying the gravity-dependent characteristics of regolith, fine-grained granular media covering extra-terrestrial bodies is essential for the reliable design and analysis of landers and rovers for space exploration. In this study, we propose an experimental approach to examine a granular flow under stable artificial gravity conditions for a long duration generated by a centrifuge at the International Space Station. We also perform a discrete element simulation of the granular flow in both artificial and natural gravity environments. The simulation results verify that the granular flows in artificial and natural gravity are consistent. Further, regression analysis of the experimental results reveals that the mass flow rate of granular flow quantitatively follows a well-known physics-based

SUBMITTER: Ozaki S 

PROVIDER: S-EPMC10409782 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature