Advances in the discrete ordinates and finite volume methods for the solution of radiative heat transfer problems in participating media

PJ Coelho - Journal of Quantitative spectroscopy and Radiative …, 2014 - Elsevier
Many methods are available for the solution of radiative heat transfer problems in
participating media. Among these, the discrete ordinates method (DOM) and the finite …

The importance of accurately modelling soot and radiation coupling in laminar and laboratory-scale turbulent diffusion flames

F Liu, JL Consalvi, F Nmira - Combustion and Flame, 2023 - Elsevier
Ultrafine and highly light absorbing soot particles have been known to be harmful to human
health and a major climate forcer. Understanding the mechanisms of soot formation and …

Local contributions of resolved and subgrid turbulence-radiation interaction in LES/presumed FDF modelling of large-scale methanol pool fires

F Nmira, JL Consalvi - International Journal of Heat and Mass Transfer, 2022 - Elsevier
The present study aims to quantify individual contributions to turbulence-radiation interaction
(TRI) in LES of large methanol pool fires with diameters ranging from 1m to 4m. These …

A wide-band based weighted-sum-of-gray-gases model for participating media: Application to H2O-CO2 mixtures with or without soot

RJC da Fonseca, GC Fraga, FR Coelho… - International Journal of …, 2023 - Elsevier
The presence of participating gases and soot in combustion processes often makes the
thermal radiation the main mechanism of heat transfer due to the elevated temperatures …

Comparison and refinement of the various full-spectrum k-distribution and spectral line weighted-sum-of-gray-gases models for nonhomogeneous media

C Wang, MF Modest, T Ren, J Cai, B He - Journal of Quantitative …, 2021 - Elsevier
Both the full-spectrum k-distribution (FSK) method and the spectral line weighted-sum-of-
gray-gases (SLW) method are global spectral methods, with the former based on a spectral …

Assessment of weighted-sum-of-gray-gases models for gas-soot mixture in jet diffusion flames

J Guo, L Shen, X He, Z Liu, HG Im - International Journal of Heat and Mass …, 2021 - Elsevier
The global radiative property models are widely used in combustion simulation due to its
high computational efficiency. This study assesses the weighted sum of gray gases (WSGG) …

Experimental and numerical study of the effects of the oxygen index on the radiation characteristics of laminar coflow diffusion flames

A Fuentes, R Henríquez, F Nmira, F Liu… - Combustion and flame, 2013 - Elsevier
The oxygen concentration in the oxidizer stream (O2+ N2) of laminar coflow ethylene
diffusion flames is varied from 17% to 35% in order to study its influence on the flame height …

Application of the WSGG model for the calculation of gas–soot radiation in a turbulent non-premixed methane–air flame inside a cylindrical combustion chamber

FR Centeno, R Brittes, FHR França… - International Journal of …, 2016 - Elsevier
This paper presents a study of the effect of soot on the radiative heat transfer in a turbulent,
non-premixed methane–air flame inside a combustion chamber. In this problem, an …

Calculations of gas radiation heat transfer in a two-dimensional rectangular enclosure using the line-by-line approach and the statistical narrow-band correlated-k …

H Chu, F Liu, H Zhou - International Journal of Thermal Sciences, 2012 - Elsevier
Radiation heat transfer in a two-dimensional rectangular enclosure containing CO2/H2O/N2
mixtures was calculated using the line-by-line and the statistical narrow-band correlated-k …

The treatment of nongray properties in radiative heat transfer: from past to present

MF Modest - Journal of heat transfer, 2013 - asmedigitalcollection.asme.org
Radiative heat transfer in high-temperature participating media displays very strong spectral,
or “nongray,” behavior, which is both very difficult to characterize and to evaluate. This has …