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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Wood Research

ISSN

1336-4561

e-ISSN

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Svazek periodika

57

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

79-90

Kód UT WoS článku

303138800007

EID výsledku v databázi Scopus

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