To the theory of underwater ice evolution, or nonlinear dynamics of ``false bottoms{''} / Alexandrov D. V.,Nizovtseva I. G. // INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER. - 2008. - V. 51, l. 21-22. - P. 5204-5208.

ISSN/EISSN:

0017-9310 / нет данных

Type:

Article

Abstract:

We present a mathematical model describing evolution of false bottoms often met between an under-ice melt pond and the underlying ocean during summer. The model treats a false bottom as the region of mixed phase (mushy layer) whose coordinates depend on time and determine the phase transition area. As the heat and the salt fluxes in the ocean are strongly influenced by turbulence and the ice meltwater accumulating underneath the ice cover is practically fresh, we use modified boundary conditions for heat and mass fluxes at the interfaces of phase transition. Explicit analytical solutions (thickness of false bottom and growth rates of its boundaries, temperature and salinity distributions, solid phase fraction and ocean-to-ice heat flux) of the nonlinear model under consideration are found. Model predictions are in good agreement with existing experimental data and physical concepts of phenomena under study. (C) 2008 Elsevier Ltd. All rights reserved.

Author keywords:

Sea ice; Mushy layer; Heat fluxes; Melt pond; False bottom SUMMER SEA-ICE; MELT PONDS; HEAT; OCEAN; SHEBA; ZONE

DOI:

10.1016/j.ijheatmasstransfer.2

Web of Science ID:

ISI:000260273000018

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	OCT
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	SUMMER SEA-ICE; MELT PONDS; HEAT; OCEAN; SHEBA; ZONE
Research-Areas	Thermodynamics; Engineering; Mechanics
Web-of-Science-Categories	Thermodynamics; Engineering, Mechanical; Mechanics
Author-Email	Dmitri.Alexandrov@usu.ru
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Funding-Acknowledgement	Russian Foundation {[}08-01-00298, 07-03-96069 Ural, 07-0196091 Ural]; President Grant {[}MD-4563.2008.2]
Funding-Text	This work was made possible in part due to the financial support of Grants Nos. 08-01-00298, 07-03-96069 Ural, 07-0196091 Ural (Russian Foundation for Basic Research) and MD-4563.2008.2 (President Grant).
Number-of-Cited-References	23
Usage-Count-Since-2013	3
Journal-ISO	Int. J. Heat Mass Transf.
Doc-Delivery-Number	363NC