Fully coupled algorithm for heat and water transport -- estimation of non-linear parameters based on the experimental data

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F12%3A%230002224" target="_blank" >RIV/46747885:24220/12:#0002224 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.matcom.2012.06.011" target="_blank" >http://dx.doi.org/10.1016/j.matcom.2012.06.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matcom.2012.06.011" target="_blank" >10.1016/j.matcom.2012.06.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fully coupled algorithm for heat and water transport -- estimation of non-linear parameters based on the experimental data

Popis výsledku v původním jazyce

We solve the problem of coupled heat conduction and water transport in bentonite with water present in vapour and adsorbed form in a non-equilibrium state. The problem is governed by a system of two parabolic PDE and one ODE. Most of the coefficients arenon-linear functions, defined either by underlying physical phenomena or empirically. We present a numerical scheme using FEM with linear base functions, implicit time discretisation, and simple iterations for the non-linear terms. The model is verifiedagainst experiments (one 1D and one 3D) and we demonstrate the use of optimization algorithm for parameter calibration. Some of the parameters could be estimated successfully while others with limited confidence, which is explained by the particular character of the non-linear parameter dependence and resulting small sensitivity of the model on some parameters.

Název v anglickém jazyce

Fully coupled algorithm for heat and water transport -- estimation of non-linear parameters based on the experimental data

Popis výsledku anglicky

We solve the problem of coupled heat conduction and water transport in bentonite with water present in vapour and adsorbed form in a non-equilibrium state. The problem is governed by a system of two parabolic PDE and one ODE. Most of the coefficients arenon-linear functions, defined either by underlying physical phenomena or empirically. We present a numerical scheme using FEM with linear base functions, implicit time discretisation, and simple iterations for the non-linear terms. The model is verifiedagainst experiments (one 1D and one 3D) and we demonstrate the use of optimization algorithm for parameter calibration. Some of the parameters could be estimated successfully while others with limited confidence, which is explained by the particular character of the non-linear parameter dependence and resulting small sensitivity of the model on some parameters.

Druh

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

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

<a href="/cs/project/1M0554" target="_blank" >1M0554: Pokročilé sanační technologie a procesy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Mathematics and Computers in Simulation

ISSN

0378-4754

e-ISSN

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Svazek periodika

82

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1908-1918

Kód UT WoS článku

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EID výsledku v databázi Scopus

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