Estudio numérico de la formación de escarcha sobre una placa plana horizontal con flujo paralelo
Resumen
Para predecir el crecimiento de la escarcha y sus propiedades sobre superficies horizontales, en este trabajo se desarrolló un código CFD empleando el método de los volúmenes finitos. Se eligió un modelo matemático que incluye el subdominio del aire húmedo y el subdominio de la capa de escarcha, considerándola como un medio poroso. Las ecuaciones de gobierno se resolvieron en un solo dominio empleando diferentes coeficientes para las ecuaciones discretizadas dependiendo de si el nodo corresponde a escarcha o aire, y utilizando diferentes propiedades termofísicas. Para validar el código numérico se realizó un estudio experimental en el cual se encontró una diferencia relativa en el espesor de la escarcha menor del 10% para el punto central de la superficie en el tiempo final.Citas
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