Simulation of the solidification in a channel of a water-cooled glass flow

• Autor(a) principal: Ovando Chacon,G. E.
• Data de Publicação: 2014
• Outros Autores: Ovando Chacon,S. L., Prince Avelino,J. C., Servin Martinez,A., Hernandez Zarate,J. A.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Chemical Engineering
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322014000400012
• topic: Phase change; Computational fluid dynamics; Glass flow; Solid-liquid interface; Finite element

A computer simulation study of a laminar steady-state glass flow that exits from a channel cooled with water is reported. The simulations are carried out in a two-dimensional, Cartesian channel with a backward-facing step for three different angles of the step and different glass outflow velocities. We studied the interaction of the fluid dynamics, phase change and thermal behavior of the glass flow due to the heat that transfers to the cooling water through the wall of the channel. The temperature, streamline, phase change and pressure fields are obtained and analyzed for the glass flow. Moreover, the temperature increments of the cooling water are characterized. It is shown that, by reducing the glass outflow velocity, the solidification is enhanced; meanwhile, an increase of the step angle also improves the solidification of the glass flow.