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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Finite element modeling (FEM) simulation of interactions between wood and microwaves

Journal of Wood Science volume 52, pages 406–410 (2006)Cite this article

Abstract

The aim of this study was to use finite element modeling (FEM) as a tool to analyze microwave scattering in wood and to verify the model by measurements with a microwave scanner. A medical computed tomography scanner was used to measure distribution of density and moisture content in a piece of Scots pine (Pinus sylvestris). Dielectric properties were calculated from measured values for cross sections from the piece and used in the model. Images describing the distribution of the electric field and phase shift were obtained from the FEM simulation. The model was verified by measurements with a scanner based on a microwave sensor. The results show that simulated values correspond well to measured values. Furthermore, discontinuities in the material caused scattering in both the measured and the simulated values. The greater the discontinuity in the material, the greater was the need for computational power in the simulation.

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Authors and Affiliations

  1. Division of Wood Physics, Luleå University of Technology, Skellefteå Campus, Skellefteå SE-931 87, Sweden

    Lars Hansson & Anna-Lena Antti

  2. Division of Wood Technology, Luleå University of Technology, Skellefteå Campus, Skellefteå, SE-931 87, Sweden

    Nils Lundgren & Olle Hagman

Authors
  1. Lars Hansson
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  2. Nils Lundgren
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  3. Anna-Lena Antti
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  4. Olle Hagman
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Corresponding author

Correspondence to Nils Lundgren.

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Hansson, L., Lundgren, N., Antti, AL. et al. Finite element modeling (FEM) simulation of interactions between wood and microwaves. J Wood Sci 52, 406–410 (2006). https://doi.org/10.1007/s10086-005-0794-8

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  • DOI: https://doi.org/10.1007/s10086-005-0794-8

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