Void initiation and growth in unidirectional freezing: The influence of natural convection

C. D. Sulfredge; L. C. Chow; K. A. Tagavi

doi:10.1080/08916159308946467

Void initiation and growth in unidirectional freezing: The influence of natural convection

C. D. Sulfredge
, L. C. Chow
, K. A. Tagavi

Mechanical and Aerospace Engineering

Producción científica: Article › revisión exhaustiva

17 Citas (Scopus)

Resumen

Experiments were conducted to observe the solidification sequence and final shrinkage void distribution more precisely than was previously possible for liquids frozen from above in a rigid, constant-volume container. Physical models have been developed to give quantitative predictions about the different regimes of void initiation and why voids ultimately cease to grow downward with the freezing front. In both models, natural convection is of paramount importance for understanding the heat flows within the solidification chamber. Agreement of the results with experimental data is encouraging. We feel that these results will eventually lead to better void management in phase-change materials for storing thermal energy.

Idioma original	English
Páginas (desde-hasta)	411-436
Número de páginas	26
Publicación	Experimental Heat Transfer
Volumen	6
N.º	4
DOI	https://doi.org/10.1080/08916159308946467
Estado	Published - 1993

Nota bibliográfica

Funding Information:
This material is based on work partly supported under C. D. Sulfredge's University of Kentucky Dissertation Year Fellowship. The project was also funded by the Air Force Aero Propulsion and Power Laboratory, contract F33615-87-C-2777.

Financiación

This material is based on work partly supported under C. D. Sulfredge's University of Kentucky Dissertation Year Fellowship. The project was also funded by the Air Force Aero Propulsion and Power Laboratory, contract F33615-87-C-2777.

Financiadores	Número del financiador
Air Force Aero Propulsion and Power Laboratory	F33615-87-C-2777
University of Kentucky

ASJC Scopus subject areas

Control and Systems Engineering
Instrumentation
Electrical and Electronic Engineering

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abstract = "Experiments were conducted to observe the solidification sequence and final shrinkage void distribution more precisely than was previously possible for liquids frozen from above in a rigid, constant-volume container. Physical models have been developed to give quantitative predictions about the different regimes of void initiation and why voids ultimately cease to grow downward with the freezing front. In both models, natural convection is of paramount importance for understanding the heat flows within the solidification chamber. Agreement of the results with experimental data is encouraging. We feel that these results will eventually lead to better void management in phase-change materials for storing thermal energy.",

author = "Sulfredge, \{C. D.\} and Chow, \{L. C.\} and Tagavi, \{K. A.\}",

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AU - Tagavi, K. A.

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N2 - Experiments were conducted to observe the solidification sequence and final shrinkage void distribution more precisely than was previously possible for liquids frozen from above in a rigid, constant-volume container. Physical models have been developed to give quantitative predictions about the different regimes of void initiation and why voids ultimately cease to grow downward with the freezing front. In both models, natural convection is of paramount importance for understanding the heat flows within the solidification chamber. Agreement of the results with experimental data is encouraging. We feel that these results will eventually lead to better void management in phase-change materials for storing thermal energy.

AB - Experiments were conducted to observe the solidification sequence and final shrinkage void distribution more precisely than was previously possible for liquids frozen from above in a rigid, constant-volume container. Physical models have been developed to give quantitative predictions about the different regimes of void initiation and why voids ultimately cease to grow downward with the freezing front. In both models, natural convection is of paramount importance for understanding the heat flows within the solidification chamber. Agreement of the results with experimental data is encouraging. We feel that these results will eventually lead to better void management in phase-change materials for storing thermal energy.

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Void initiation and growth in unidirectional freezing: The influence of natural convection

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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