Affordable Access

Numerical investigation of natural convection in inclined parallel-plate channels partly filled with metal foams

Authors
Journal
International Journal of Heat and Mass Transfer
0017-9310
Publisher
Elsevier
Volume
55
Identifiers
DOI: 10.1016/j.ijheatmasstransfer.2012.06.051
Keywords
  • Porous Medium
  • Metal Foam
  • Composite Channel
  • Natural Convection
  • Inclined Channel
Disciplines
  • Mathematics

Abstract

Abstract Numerical results of laminar fully developed natural convection in an inclined composite channel are presented. The mathematical model relies on the Method of Volume Averaging and thus a single domain approach is applied. The Forchheimer correction and thermal dispersion effects are considered while local thermal equilibrium between the porous matrix and the fluid is assumed. Velocity and temperature profiles are displayed and their rather weak dependence upon porosity and fluid properties assessed. Forces acting on the fluid are identified and discussed. Thermal performances of the composite channel in laminar conditions are evaluated. One of the main results of the present investigation is that when non-Darcian effects and thermal dispersion are negligible, the Nusselt number of the composite system in natural convection regime is independent of the channel inclination.

There are no comments yet on this publication. Be the first to share your thoughts.