NUMERICAL ANALYSIS OF FREEZE COATING ON A TWO-DIMENSIONAL MOVING PLATE
作者:
K. G. Mahmoud,
期刊:
Numerical Heat Transfer, Part A: Applications
(Taylor Available online 1994)
卷期:
Volume 25,
issue 3
页码: 279-293
ISSN:1040-7782
年代: 1994
DOI:10.1080/10407789408955949
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The process of freeze coating of a polymeric melt onto a two-dimensional flat plate moving continuously in the axial direction is simulated, taking into account the limited heat capacity of the plate, the spatial variation of the plate temperature, and the heat converted from the melt to the freeze coat. To identify the controlling parameters in the process, the system of equations governing the plate temperature and the shape and the temperature of the freeze coat is transformed into dimensionless coordinates. Numerical methods have been used to solve the resulting mathematical model. The history of the spatial variation of the shape of the freeze coat is presented in graphs. The parameters controlling the shape of the freeze coat are identified, and it has been found that the plate-coat diffusivity ratio, a convective heal transfer parameter, Péclet number, Stefan number, and the fusion temperature of the molten fluid are the parameters that control the growth and decay of the Freeze-coat layer. The effect of these parameters and the boundary conditions on the behavior of the freeze-coat process is discussed.
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