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Moon pp 267-293 | Cite as

Challenges in Transporting, Handling and Processing Regolith in the Lunar Environment

  • Otis Walton

Introduction

It is well known that powders become more ‘cohesive’ as their mean particulate size decreases. This phenomenon is evidenced by such characteristics as poor flowability, clumping, avalanching, difficulty in fluidizing, and formation of quasi-stable, low-density configurations that are easily compacted. Gravity is often the primary driving force for powder movement in common powder processing and transfer operations. Because of this, gravity plays a role in how the flow behavior of powders is typically characterized. As a result, the ‘cohesiveness’ of a powder varies with gravity-level, with a powder appearing more ‘cohesive’ as the effective gravity level is decreased.

Keywords

Granular Material Lunar Surface Lunar Regolith Lunar Soil Gravity Level 
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.

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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Otis Walton
    • 1
  1. 1.Grainflow DynamicsLivermoreUSA

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