Title of article :
On the thermal conductivity of sintered metallic fibre structures
Author/Authors :
C. Veyhl، نويسنده , , T. Fiedler، نويسنده , , O. Andersen، نويسنده , , J. Meinert، نويسنده , , T. Bernthaler، نويسنده , , I.V. Belova، نويسنده , , G.E. Murch، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
9
From page :
2440
To page :
2448
Abstract :
The present paper investigates the anisotropic thermal conductivity of a novel sintered metallic fibre structure with different porosities (i.e. 51.9%, 74.9%, 81.4%). Different methodologies are applied: numerical calculations (i.e. Finite Element and Lattice Monte Carlo methods) based on micro-computed tomography images, experimental tests (i.e. steady-state plate method) and analytical modelling. Good agreement between the numerical methods and experimental measurements is obtained for high porosity models (i.e. porosity > 72.5%). Furthermore, the thermal conductivity decreases with increasing porosity. A distinct thermal anisotropy is found where maximum values are in the parallel direction and minimum values in the transverse direction to the fibres.
Keywords :
Sintered metallic fibre structures , Micro-computed Tomography , Thermal conductivity , Lattice Monte Carlo method , Finite element analysis , Experimental test
Journal title :
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Serial Year :
2012
Journal title :
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Record number :
1077835
Link To Document :
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