Critical outflow for a steady-state stefan problem

The problem of the steady temperature distribution in a container of fluid that is kept at a given positive temperature over a part of its boundary and is cooled with a given rate q on the rest of the boundary is considered. It is shown that there exists a critical qc >0 such that for q &...

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Autores principales: Bouillet, J.E., Shillor, M., Tarzia, D.A.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00036811_v32_n1_p31_Bouillet
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spelling todo:paper_00036811_v32_n1_p31_Bouillet2023-10-03T13:56:31Z Critical outflow for a steady-state stefan problem Bouillet, J.E. Shillor, M. Tarzia, D.A. heat flux phase change Stefan problem variational formulation The problem of the steady temperature distribution in a container of fluid that is kept at a given positive temperature over a part of its boundary and is cooled with a given rate q on the rest of the boundary is considered. It is shown that there exists a critical qc >0 such that for q > qc the temperature is negative in a part of the fluid and this is interpreted as the existence of a solid phase together with the liquid fase. For q < qc the temperature is positive and there is only liquid in the container. Various estimates for qc are given in terms of the geometry. © 1989, Taylor & Francis Group, LLC. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00036811_v32_n1_p31_Bouillet
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic heat flux
phase change
Stefan problem
variational formulation
spellingShingle heat flux
phase change
Stefan problem
variational formulation
Bouillet, J.E.
Shillor, M.
Tarzia, D.A.
Critical outflow for a steady-state stefan problem
topic_facet heat flux
phase change
Stefan problem
variational formulation
description The problem of the steady temperature distribution in a container of fluid that is kept at a given positive temperature over a part of its boundary and is cooled with a given rate q on the rest of the boundary is considered. It is shown that there exists a critical qc >0 such that for q > qc the temperature is negative in a part of the fluid and this is interpreted as the existence of a solid phase together with the liquid fase. For q < qc the temperature is positive and there is only liquid in the container. Various estimates for qc are given in terms of the geometry. © 1989, Taylor & Francis Group, LLC. All rights reserved.
format JOUR
author Bouillet, J.E.
Shillor, M.
Tarzia, D.A.
author_facet Bouillet, J.E.
Shillor, M.
Tarzia, D.A.
author_sort Bouillet, J.E.
title Critical outflow for a steady-state stefan problem
title_short Critical outflow for a steady-state stefan problem
title_full Critical outflow for a steady-state stefan problem
title_fullStr Critical outflow for a steady-state stefan problem
title_full_unstemmed Critical outflow for a steady-state stefan problem
title_sort critical outflow for a steady-state stefan problem
url http://hdl.handle.net/20.500.12110/paper_00036811_v32_n1_p31_Bouillet
work_keys_str_mv AT bouilletje criticaloutflowforasteadystatestefanproblem
AT shillorm criticaloutflowforasteadystatestefanproblem
AT tarziada criticaloutflowforasteadystatestefanproblem
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