Title | Prediction of radiative heat transfer in metallic foams |
---|---|
Publication Type | Articolo su Rivista peer-reviewed |
Year of Publication | 2014 |
Authors | Contento, Gaetano, Oliviero M., Bianco N., and Naso V. |
Journal | International Journal of Thermal Sciences |
Volume | 76 |
Pagination | 147-154 |
ISSN | 12900729 |
Keywords | Analytical approach, Analytical-numerical method, Heat flux, Heat transfer, Metallic foam, Models, Monte Carlo methods, Original model, Porosity, Radiative conductivity, Radiative heat fluxes, Radiative heat transfer, radiative transfer, Representative elementary volume |
Abstract | A simplified analytical-numerical method to model radiation heat transfer in metallic foams is proposed. It modifies a model taken from the literature and allows to predict the radiative conductivity for high and low porosity foams. A simplified cubic representative elementary volume of the foam is assumed and radiative heat flux is evaluated by computing radiosities and view factors. The analytical approach proposed in this paper slightly modifies some coefficients of the original model. Test ray-tracing and numerical simulations based onto Monte Carlo method are carried out in order to consistently calculate some view factors. The comparison with experimental results shows that predictions of the proposed model are more accurate than those of the original one. © 2013 Elsevier Masson SAS. All rights reserved. |
Notes | cited By 12 |
URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885654001&doi=10.1016%2fj.ijthermalsci.2013.09.001&partnerID=40&md5=ec1ddf0d5f2054d6d1f908d7feb0f3b1 |
DOI | 10.1016/j.ijthermalsci.2013.09.001 |
Citation Key | Contento2014147 |