Permeability of JSC-1A: A lunar soil simulant |
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Authors: | Casey Q LaMarche Jennifer Sinclair Curtis |
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Institution: | a University of Florida Chemical Engineering Department, Room 227 CHE PO Box 116005, Gainesville, FL 32611-6005, United States b Granular Mechanics and Surface Systems Laboratory, NASA, KT-D3, Kennedy Space Center, FL 32899, United States |
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Abstract: | The permeability of lunar soil simulant, JSC-1A, is measured over a range of bulk densities from 1550 to 2000 kg m−3. The corresponding viscous flow permeability is 1 × 10−12 m2 to 6.1 × 10−12 m2 for this bulk density range. Implications of these values on the contamination of regolith by rockets, on barrier/enhancement to bulk flow of ice, and on cratering are discussed. Although the particle size and shape distribution of the JSC-1A are extremely wide, the permeability measurements agree surprisingly well with the Carman-Kozeny equation. The results provide evidence that the Carman-Kozeny model could be applicable to other naturally occurring soils if effective soil properties are considered. |
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Keywords: | Moon Moon surface Regoliths Cratering Ices |
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