Thermal boundary layer dynamics at large Rayleigh number - Implications for the number of plumes in planetary mantles

Details Thermal boundary layer dynamics at large Rayleigh number - Implications for the number of plumes in planetary mantles Thermal boundary layer dynamics at large Rayleigh number - Implications for the number of plumes in planetary mantles

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1079p&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 079.

Other

Planetary Mantles, Plumes, Rayleigh Number, Thermal Boundary Layer, Volcanoes, Boundary Layer Stability, Planetary Surfaces, Venus Surface, Earth Surface

Scientific paper

The dynamics of a thermal boundary layer at high Rayleigh number (Ra) is examined on the basis of 3D experiments in a volumetrically heated fluid cooled from above. The behavior of a thermal boundary layer, independent of any effects of interaction with other boundary layers, is studied. The average number of plumes present in the experiments increases approximately as Ra exp 1/4. Since the boundary layer thickness, delta, varies as Ra exp -1/4, the average spacing between plumes varies as sq rt delta.

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