Novel Mixing Relations for Determining the Effective Thermal Conductivity of Open-Cell Foams
Novel Mixing Relations for Determining the Effective Thermal Conductivity of Open-Cell Foams
Nain Camacho Hernandez, J.; Link, G.; Schubert, M.; Hampel, U.
This paper proposes a new approach to relate the effective thermal conductivity of open-cell solid foams to their porosity. It is based on a recently published approach for estimating the dielectric permittivity of isotropic porous media. A comprehensive assessment was performed comparing the proposed mixing relation with published experimental data for thermal conductivity and with numerical data from state-of-the-art relations. The mixing relation for the estimation of thermal conductivities based on dodecahedrons as building blocks shows good agreement with experimental data over a wide range of porosity.
Keywords: open-cell foams; effective permittivity; thermal conductivity; platonic solids
Involved research facilities
- TOPFLOW Facility
-
Materials 15(2022)6, 2168
DOI: 10.3390/ma15062168
Cited 1 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-34483