Journal of Enhanced Heat Transfer Theory and Application in High Performance Heat and Mass Transfer

ISSN for PRINT: 1065-5131

For Online Access

Best Paper Award Selection - Editorial Board Site

2006, Volume13

Issue 1

98 pages

DOI: 10.1615/JEnhHeatTransf.v13.i1

Issue price - $148.00

Carlos Frederico Matt
Electric Power Research Center — CEPEL, Department of Equipment and Installations, CP 68007, Rio de Janeiro, RJ, 21944-970, Brazil

Manuel Ernani Cruz
Federal University of Rio de Janeiro — UFRJ, Department of Mechanical Engineering/Poli/COPPE, CP 68503, CT, Rio de Janeiro, RJ, 21945-970, Brazil

Despite the importance of short-fiber composites in current engineering applications, few numerical studies have focused on their macroscopic heat conduction behavior. In this paper, we apply a finite-element-based methodology to calculate representative results for the effective thermal conductivities of composites reinforced with anisotropic short fibers. The investigated three-dimensional microstructures are ordered and consist of circular cylinders placed at the center of parallelepipedonal cells. The controlled parameters are fiber volume fraction, fiber and cell aspect ratios, and fiber thermal conductivity and degree of anisotropy. We identify the conditions under which the composite conduction capacity is significantly enhanced. Our numerical calculations are further contrasted to reported analytical and experimental results.

DOI: 10.1615/JEnhHeatTransf.v13.i1.20 Download article, 17-38 pages

Article price - $35.00

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