Journal
PHYSICS AND CHEMISTRY OF MINERALS
Volume 27, Issue 3, Pages 164-169Publisher
SPRINGER VERLAG
DOI: 10.1007/s002690050004
Keywords
-
Categories
Ask authors/readers for more resources
Molecular dynamics simulations employing a many-body embedding potential model have been conducted to calculate both bulk and shear viscosity of pure liquid iron at the Earth's outer core conditions. Liquid iron shear viscosity thus obtained is in the order of 10(-2) Pa . s and is in close agreement with previous estimates. In contrast, liquid iron bulk viscosity is in the order of 10(-3) to 10(-4) pa . s and is much smaller than previous estimates. Consequently the ratio of bulk to shear viscosity is close to 0.1. This value disagrees with both the common speculation that bulk and shear Viscosities al-e equal at ambient pressure, and the previous inference that bulk viscosity of liquid it-on is much larger than shear viscosity at outer core conditions. Potential implications of present data are also briefly given for the dynamic state of the outer core.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available