کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
647358 | 1457170 | 2012 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Numerical analysis of radiation effects in a metallic foam by means of the radiative conductivity model Numerical analysis of radiation effects in a metallic foam by means of the radiative conductivity model](/preview/png/647358.png)
The aim of this work is the evaluation of the radiation contribution to the steady-state heat transfer in metallic foams by means of the radiative conductivity model. Because of the complexity of the structure, reference is made to a simplified physical radiative model, where the elementary cell of the foams is treated as a cubic cell. The contribution of the radiation heat transfer is investigated on a local basis. The local radiative conductivity has been used to evaluate the influence of radiative heat transfer in a two dimensional conductive-convective-radiative problem involving a forced fluid flow within a heated channel filled with a metallic foam. The effect of the solid emissivity and the foam porosity is pointed out for different foams.
Journal: Applied Thermal Engineering - Volume 49, 31 December 2012, Pages 14–21