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ARTICLE
NUMERICAL STUDY OF AIR FORCED CONVECTION IN A CHANNEL PROVIDED WITH INCLINED RIBS
Oronzio Manca*, Sergio Nardini, Daniele Ricci
Dipartimento di Ingegneria Aerospaziale e Meccanica, Seconda Università degli Studi di Napoli
Real Casa dell’Annunziata, via Roma 29, 81031 Aversa, Italy
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2011, 2(1), 1-8. https://doi.org/10.5098/hmt.v2.1.3007
Abstract
Convective heat transfer may be enhanced passively by adopting rough surfaces. Ribs break the laminar sub-layer and create local turbulence in the
channel, reducing thermal resistance and enhancing the heat transfer. However, higher losses are expected. In this paper a numerical investigation is
carried out on air forced convection in a rectangular ribbed channel. A three-dimensional model is developed to study the effect of the angle between
the fluid flow direction and the ribbed surface, provided with rectangular turbulators, in the turbulent flow. Simulations s that Nusselt numbers as
well as the pressure drops increase as the inclination angles increase.
Keywords
Cite This Article
Manca, O., Nardini, S., Ricci, D. (2011). NUMERICAL STUDY OF AIR FORCED CONVECTION IN A CHANNEL PROVIDED WITH INCLINED RIBS.
Frontiers in Heat and Mass Transfer, 2(1), 1–8.