Detail publikace

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

HÁJEK, J. JUŘENA, T.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Convective heat transfer, flow in porous media, source term, fixed bed combustion

Autoři

HÁJEK, J.; JUŘENA, T.

Vydáno

15. 1. 2016

Nakladatel

Emerald Group Publishing

ISSN

0961-5539

Periodikum

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW

Ročník

26

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

409

Strany do

426

Strany počet

19

URL

http://www.emeraldinsight.com/doi/full/10.1108/HFF-02-2015-0064

BibTex

@article{BUT117285,
  author="Jiří {Hájek} and Tomáš {Juřena}",
  title="New Numerical Treatment of Source Term in Convective Transfer of Heat between Fluid and Porous Solid Matrix",
  journal="INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW",
  year="2016",
  volume="26",
  number="2",
  pages="409--426",
  doi="10.1108/HFF-02-2015-0064",
  issn="0961-5539",
  url="http://www.emeraldinsight.com/doi/full/10.1108/HFF-02-2015-0064"
}