Effective lateral thermal conductivity of squarecell cores
Abstract
The effective thermal conductivity of squarecell cores has been formulated for heat flow lateral to the principal axes of the cells. The formulation is based on a thermal model involving linearized radiation and solid conduction only, where the application is for cored mirrors in spacebased optical systems. The formulation uses an effective viewfactor correlation that allows a radiative conductance to be isolated as a component acting in parallel with a solid conductance. By analysis for both normal and diagonal global heat flow, relative to the cell pattern, sensitivity of effective thermal conductivity to lateral heatflow orientation was found to be quite negligible.
 Publication:

AIAA Journal
 Pub Date:
 July 1982
 DOI:
 10.2514/3.7958
 Bibcode:
 1982AIAAJ..20.1009F
 Keywords:

 Core Flow;
 Honeycomb Cores;
 Large Space Structures;
 Mirrors;
 Radiative Heat Transfer;
 Thermal Conductivity;
 Equivalent Circuits;
 Sandwich Structures;
 Thermal Expansion;
 Thermal Radiation;
 Fluid Mechanics and Heat Transfer