Computer Science – Numerical Analysis
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977aerms..56...76p&link_type=abstract
L'Aerotecnica - Missili e Spazio, vol. 56, June 1977, p. 76-84.
Computer Science
Numerical Analysis
Lunar Rocks, Mathematical Models, One Dimensional Flow, Similitude Law, Two Phase Flow, Volcanology, Astronomical Models, Numerical Analysis, Steady Flow
Scientific paper
A 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.
Hsu Yuling
Pai S. I.
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