Wenzhen Chen, Junjie Ma^*, Jianli Hao

Frontiers in Heat and Mass Transfer, Vol.22, No.6, pp. 1823-1837, 2024, DOI:10.32604/fhmt.2024.057896 - 19 December 2024

Abstract The contact melting process of solid phase change material (PCM) has essential applications in some energy storage systems, which is related closely to the heat resource’s geometry and thermal boundary conditions. The contact melting of PCM in a horizontal elliptical tube under the second kind of thermal boundary condition, namely the constant surface heat flux, was investigated analytically. The analysis model is proposed based on the contact melting lubrication theory, and the model deduces the basic dimensionless equations. The variation rules of parameters such as contact melting speed, melting completion time, and boundary layer thickness More >

R. Avila¹, F.J. Solorio¹

CMES-Computer Modeling in Engineering & Sciences, Vol.44, No.2, pp. 177-202, 2009, DOI:10.3970/cmes.2009.044.177

Abstract Heat transfer processes involving phase change either, solidification or melting, appear frequently in nature and in industrial applications. In this paper the convective patterns that arise from a 2D shear driven annular flow (without and with melting), are presented. The convective annular flow with radial gravity can be considered as a simplified model of the atmospheric flow in the terrestrial equatorial plane (bounded by the warm surface of the Earth and the cold tropopause). The governing equations have been numerically solved by the Spectral Element Method. The numerical results reported in this paper, for the… More >