Selection criterion for the growing dendritic tip at the inner core boundary / Alexandrov D. V.,Galenko P. K. // JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL. - 2013. - V. 46, l. 19.

ISSN/EISSN:
1751-8113 / нет данных
Type:
Article
Abstract:
A free dendrite growth at the Earth's inner core boundary is analyzed using a sharp interface model. A new selection criterion of the dendrite tip's stable growth into non-isothermal binary melt with convection and pressure effects for the 2D and 3D axisymmetric models is derived. The criterion obtained combines known analytic results for the dendrite growth under forced convection in a pure system and dendrite growth in a stagnant binary system. The generalized selection criterion represents a condition connecting the main physical parameters of the Earth's inner core.
Author keywords:
EARTHS OUTER CORE; DIRECTIONAL SOLIDIFICATION; PATTERN SELECTION; MUSHY LAYER; FORCED FLOW; GROWTH; MODEL; CONVECTION; STABILITY; CRYSTALS
DOI:
10.1088/1751-8113/46/19/195101
Web of Science ID:
ISI:000318403100002
Соавторы в МНС:
Другие поля
Поле Значение
Month MAY 17
Publisher IOP PUBLISHING LTD
Address TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language English
Article-Number 195101
Keywords-Plus EARTHS OUTER CORE; DIRECTIONAL SOLIDIFICATION; PATTERN SELECTION; MUSHY LAYER; FORCED FLOW; GROWTH; MODEL; CONVECTION; STABILITY; CRYSTALS
Research-Areas Physics
Web-of-Science-Categories Physics, Multidisciplinary; Physics, Mathematical
Author-Email dmitri.alexandrov@usu.ru
ResearcherID-Numbers Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers Alexandrov, Dmitri/0000-0002-6628-745X
Funding-Acknowledgement Ministry of Education and Science of the Russian Federation {[}14.A18.21.0858, 2.947.2011, 07.08]; Russian Foundation for Basic Research {[}11-01-00137]
Funding-Text We are grateful for partial support from the Ministry of Education and Science of the Russian Federation within the framework of the Federal Target Program `Scientific and Academic-Teaching Staff of Innovative Russia' in 2009-2013 (contract no 14.A18.21.0858) as well as within the framework of program 07.08 `Applied Research Investigations in Education' (project no 2.947.2011) and the Russian Foundation for Basic Research (project no 11-01-00137).
Number-of-Cited-References 44
Usage-Count-Since-2013 4
Journal-ISO J. Phys. A-Math. Theor.
Doc-Delivery-Number 136ZM