Finite-difference analysis of growth and decay of a freeze coat on a continuous moving cylinder

F. B. Cheung, S. W. Cha

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The process of freeze coating of a polymeric melt on an axially moving continuous cylinder is studied numerically by a finite-difference method, taking into account heat convection from the melt to the freeze coat and spatial variation of the cylinder temperature. The solid-liquid interface location is immobilized in the finite-difference analysis of the problem by transforming the system of equations governing the behavior of the freeze coat and the cylinder temperature into a dimensionless space. Various controlling parameters of the system are identified and their effects on the growth-and-decay behavior of the freeze coat are determined. Also determined are the maximum freeze-coat thickness and the corresponding axial location, based on which criteria for selection of the optimum freeze-coating operation conditions are established. The accuracy of the computational scheme is demonstrated by comparing the numerical results with the similarity solutions that are valid at small dimensionless axial locations.

Original languageEnglish (US)
Pages (from-to)41-56
Number of pages16
JournalNumerical Heat Transfer
Volume12
Issue number1
DOIs
StatePublished - Jul 1987

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Finite Difference
Decay
Dimensionless
Coating
decay
coatings
Coatings
Heat convection
Similarity Solution
liquid-solid interfaces
Finite difference method
Difference Method
System of equations
Convection
convection
Heat
Liquid
Valid
heat
Numerical Results

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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abstract = "The process of freeze coating of a polymeric melt on an axially moving continuous cylinder is studied numerically by a finite-difference method, taking into account heat convection from the melt to the freeze coat and spatial variation of the cylinder temperature. The solid-liquid interface location is immobilized in the finite-difference analysis of the problem by transforming the system of equations governing the behavior of the freeze coat and the cylinder temperature into a dimensionless space. Various controlling parameters of the system are identified and their effects on the growth-and-decay behavior of the freeze coat are determined. Also determined are the maximum freeze-coat thickness and the corresponding axial location, based on which criteria for selection of the optimum freeze-coating operation conditions are established. The accuracy of the computational scheme is demonstrated by comparing the numerical results with the similarity solutions that are valid at small dimensionless axial locations.",
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Finite-difference analysis of growth and decay of a freeze coat on a continuous moving cylinder. / Cheung, F. B.; Cha, S. W.

In: Numerical Heat Transfer, Vol. 12, No. 1, 07.1987, p. 41-56.

Research output: Contribution to journalArticle

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