New Numerical Treatment of Source Term in Convective Transfer of Heat between Fluid and Porous Solid Matrix

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU115680" target="_blank" >RIV/00216305:26210/16:PU115680 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.emeraldinsight.com/doi/full/10.1108/HFF-02-2015-0064" target="_blank" >http://www.emeraldinsight.com/doi/full/10.1108/HFF-02-2015-0064</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1108/HFF-02-2015-0064" target="_blank" >10.1108/HFF-02-2015-0064</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New Numerical Treatment of Source Term in Convective Transfer of Heat between Fluid and Porous Solid Matrix

Popis výsledku v původním jazyce

This paper reports a novel formulation of convective heat transfer source term for the case of flow through porous medium. The new approximation is shown to provide superior performance over standard explicit and implicit formulations. The novel formulation is obtained by analytical solution of an idealized dual problem. Computations are performed by dedicated tool for fixed bed combustion named GRATECAL and developed by the authors. However, the proposed method can also be applied to other porous media flow problems. The new source term formulation is unconditionally stable and it respects exponential decay of temperature difference between the fluid and porous solid medium. The results of this work are applicable in the simulation of convective heat transfer between the fluid and porous medium. Applications include e.g. fixed bed combustion, catalytic reactors and lime kilns. The reported solution is believed to be original. It will be useful to all involved in numerical simulations of fluid flow in porous media with convective heat transfer.

Název v anglickém jazyce

New Numerical Treatment of Source Term in Convective Transfer of Heat between Fluid and Porous Solid Matrix

Popis výsledku anglicky

This paper reports a novel formulation of convective heat transfer source term for the case of flow through porous medium. The new approximation is shown to provide superior performance over standard explicit and implicit formulations. The novel formulation is obtained by analytical solution of an idealized dual problem. Computations are performed by dedicated tool for fixed bed combustion named GRATECAL and developed by the authors. However, the proposed method can also be applied to other porous media flow problems. The new source term formulation is unconditionally stable and it respects exponential decay of temperature difference between the fluid and porous solid medium. The results of this work are applicable in the simulation of convective heat transfer between the fluid and porous medium. Applications include e.g. fixed bed combustion, catalytic reactors and lime kilns. The reported solution is believed to be original. It will be useful to all involved in numerical simulations of fluid flow in porous media with convective heat transfer.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW

ISSN

0961-5539

e-ISSN

1758-6585

Svazek periodika

26

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

19

Strana od-do

409-426

Kód UT WoS článku

000379689700002

EID výsledku v databázi Scopus

2-s2.0-84959066605