Publication detail

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

HÁJEK, J. JUŘENA, T.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

HÁJEK, J.; JUŘENA, T.

Released

15. 1. 2016

Publisher

Emerald Group Publishing

ISBN

0961-5539

Periodical

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW

Year of study

26

Number

2

State

United Kingdom of Great Britain and Northern Ireland

Pages from

409

Pages to

426

Pages count

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"
}