A numerical analysis of mixed convection in gas saturated metal foam in a horizontal channel with an open cavity heated at uniform heat flux on a vertical wall is studied numerically. Non-local thermal equilibrium and Brinkman-Forchheimer-extended Darcy model are assumed. Boussinesq approximation with constant thermophysical proprieties are considered. Results are carried out for an aluminium foam with 10 PPI and ε = 0.909, the fluid is air and for the assisting case. Results, for different Peclet and Rayleigh numbers, are given in terms of solid and fluid wall temperatures and local Nusselt numbers and stream function and temperature fields. Results show that diffusive effect determined lower temperature values inside the solid and the fluid temperatures are higher in all considered cases. The interaction between the forced flow in the channel and the buoyancy due to the heated wall determines different thermal and fluid dynamic behaviors.
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ASME 2010 International Mechanical Engineering Congress and Exposition
November 12–18, 2010
Vancouver, British Columbia, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4444-1
PROCEEDINGS PAPER
Numerical Study on Mixed Convection in Porous Media in a Channel With an Open Cavity Below
Bernardo Buonomo,
Bernardo Buonomo
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
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Oronzio Manca,
Oronzio Manca
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
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Paolo Mesolella,
Paolo Mesolella
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
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Sergio Nardini
Sergio Nardini
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
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Bernardo Buonomo
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
Oronzio Manca
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
Paolo Mesolella
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
Sergio Nardini
Seconda Universita` degli Studi di Napoli, Aversa, CE, Italy
Paper No:
IMECE2010-40574, pp. 1633-1641; 9 pages
Published Online:
April 30, 2012
Citation
Buonomo, B, Manca, O, Mesolella, P, & Nardini, S. "Numerical Study on Mixed Convection in Porous Media in a Channel With an Open Cavity Below." Proceedings of the ASME 2010 International Mechanical Engineering Congress and Exposition. Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts A and B. Vancouver, British Columbia, Canada. November 12–18, 2010. pp. 1633-1641. ASME. https://doi.org/10.1115/IMECE2010-40574
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