Transformation relations and matrix implementation of multiphysics model for temperature and moisture fields in wood

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F12%3A00174444" target="_blank" >RIV/62156489:43410/12:00174444 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Transformation relations and matrix implementation of multiphysics model for temperature and moisture fields in wood
Original language description
This paper deals with the numerical simulation of 3D heat and moisture transfer in wood. The appropriate mathematical model is based on a set of coupled heat and mass transfer equations inspired by Siau (1992) and Avramidis et al. (1994). The main contributions of this paper are: first, the transformation relations between matrixes of material coefficients (diffusion and thermal conductivity coefficients) in anatomical and geometrical directions in three-dimensional case; second, the implementation of anumerical solution for the three-dimensional problem of nonisothermal moisture transfer in the anisotropic structure of wood in convective drying with transient phenomena (Soret effect, Duffour effect). The simulation is based on the unsteady-state nonisothermal nonlinear diffusion of moisture and heat with respect to the orthotropic nature of wood. It deals with a transport model which makes use of the gradient of moisture and temperature for motive power and respects the dependence of
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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