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A numerical model for phase-change suspension flow in microchannels

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Abstract

A model is developed for simulation of the laminar hydrodynamic and heat transfer characteristics of suspension flow with micro-nano-size phase-change material (PCM) particles in a microchannel (D/dp = 12.2-500). The demonstrated simultaneous solutions for the two-phase conservation equations of mass, momentum, and energy allow the investigation of heat transfer enhancement mechanisms and their limits, due to nonthermal equilibrium melting of PCM suspension particles in a flow, such as the existence of a particle-depleted layer, particle-wall interaction, phase-change (melting) region propagation, and local heat transfer coefficients for both constant wall heat flux and constant wall temperature boundary conditions.
Original languageEnglish
Pages (from-to)55-77
Number of pages23
JournalNumerical Heat Transfer; Part A: Applications
Volume46
Issue number1
DOIs
StatePublished - Jul 2 2004

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