Thermal conductivity of highly porous metal foams: Experimental and image based finite element analysis

Yasin Amani, Atsushi Takahashi, Patrice Chantrenne, Shigenao Maruyama, Sylvain Dancette, Eric Maire

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

X-ray tomography is used to produce three-dimensional images of an aluminium alloy foam with a high porosity (>93%). These data allow describing the foam structure from which a finite element model is derived to predict the thermal conductivity of the foam. The results are compared with experimental values measured by a new guarded hot plate apparatus adapted for the range of thermal conductivity values of interest. Good agreement is observed which validated the finite element model used to evaluate the thermal properties of any porous metallic foam with stochastic cell size and configuration. Furthermore, the thermal conductivity of the foam has also been predicted using previous analytical models. The differences with previous values show that it is important to account for the real geometry of the foam to get an accurate value of the thermal conductivity.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume122
DOIs
Publication statusPublished - 2018 Jul

Keywords

  • 3-D modeling
  • Conduction
  • Image analysis
  • Measurement
  • Numerical simulation
  • Open-cell foam

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Fingerprint

Dive into the research topics of 'Thermal conductivity of highly porous metal foams: Experimental and image based finite element analysis'. Together they form a unique fingerprint.

Cite this