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Dynamics of lava flow - Thickness growth characteristics of steady two-dimensional flowThe thickness growth characteristics of flowing lava are investigated using a heat balance model and a two-dimensional model for flow of a Bingham plastic fluid down an inclined plane. It is found that yield strength plays a crucial role in the thickening of a lava flow of given flow rate. To illustrate this point, downstream thickness profiles and yield strength distributions were calculated for flows with mass flow rates of 10,000 and 100,000 kg/m-sec. Higher flow rates led to slow cooling rates which resulted in slow rate of increase of yield strength and thus greater flow lengths.
Document ID
19840059221
Document Type
Reprint (Version printed in journal)
Authors
Park, S. (Iowa State Univ. of Science and Technology Ames, IA, United States)
Iversen, J. D. (Iowa State University of Science and Technology, Ames, IA, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1984
Publication Information
Publication: Geophysical Research Letters
Volume: 11
ISSN: 0094-8276
Subject Category
GEOPHYSICS
Distribution Limits
Public
Copyright
Other