Title: Numerical simulation of film condensation on vertical plate embedded in metallic foams

Authors: Y.P. Du, Z.G. Qu, H.J. Xu, Z.Y. Li, C.Y. Zhao, W.Q. Tao

Addresses: Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China. ' Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China. ' Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China. ' Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China. ' Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China. ' Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, China

Abstract: Film condensation on vertical plate embedded in metal foams was numerically investigated based on some modification for Nusselt theory. Related numerical model was established by introducing Brinkman-Darcy model. Advection and inertial force in the condensate film were considered, from which the non-linear effect of cross-sectional temperature distribution on condensation heat transfer was also involved. Condensation characteristics were discussed and compared with those on smooth surface. Effects of key parameters on condensate film thickness were examined. Furthermore, with either the increase in porosity or the decrease in pore density, the condensate layer becomes thinner.

Keywords: film condensation; vertical plates; metal foams; film thickness; numerical simulation; modelling; Nusselt theory; Brinkman-Darcy model; advection; inertial force; temperature distribution; heat transfer; porosity; pore density.

DOI: 10.1504/PCFD.2011.041020

Progress in Computational Fluid Dynamics, An International Journal, 2011 Vol.11 No.3/4, pp.198 - 205

Published online: 28 Jun 2011 *

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