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Similarity laws of lunar and terrestrial volcanic flowsA mathematical model for the terrestrial and lunar volcanic flows is proposed. This mathematical model, which is one-dimensional, steady duct flow of a mixture of a gas and small solid particles (rock), has been analyzed in detail. The similarities and the differences of the essential features of lunar and terrestrial volcanic flows are determined. Numerical results for the equilibrium two-phase flows of lunar and terrestrial volcanics under similar conditions are presented. The main results of the theoretical model are: the lunar crater is much larger than the corresponding terrestrial crater; the exit velocity from the lunar volcanic flow may be higher than the lunar escape velocity but the exit velocity of terrestrial volcanic flow is much less than that of the linear case (this result confirms the hypothesis that Australian tektites came from the moon, as a stream of rock and gas of extremely high speed), and the thermal effects on the lunar volcanic flow are much larger than those in the terrestrial case.
Document ID
19780035011
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pai, S. I.
(Maryland Univ. College Park, MD, United States)
Hsu, Y.
(Maryland, University College Park, Md., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1977
Publication Information
Publication: L'Aerotecnica - Missili e Spazio
Volume: 56
Subject Category
Lunar And Planetary Exploration
Accession Number
78A18920
Funding Number(s)
CONTRACT_GRANT: NSG-5083
CONTRACT_GRANT: NSG-398
Distribution Limits
Public
Copyright
Other

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