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 …

Study of turbulence-radiation interactions in large-eddy simulation of scaled Sandia flame D

FC Miranda, PJ Coelho, F di Mare, J Janicka - Journal of Quantitative …, 2019 - Elsevier
The importance of the subgrid-scale contribution for computing the radiative source term in
large-eddy simulations (LES) for the scaled Sandia flame D is studied in this work. This …

On the individual importance of temperature and concentration fluctuations in the turbulence-radiation interaction in pool fires

GC Fraga, FR Centeno, AP Petry, PJ Coelho… - International Journal of …, 2019 - Elsevier
This paper presents a study of resolved-scale turbulence-radiation interaction (TRI) effects in
large-scale methanol and ethanol pool fires. A broad investigation of the magnitude of the …

Improvement of the efficiency of the superposition method applied to the WSGG model to compute radiative transfer in gaseous mixtures

RM da Silva, GC Fraga, FHR França - … Journal of Heat and Mass Transfer, 2021 - Elsevier
A new method for the treatment of radiative heat transfer in mixtures of participating species
in the framework of the weighted-sum-of-gray-gases (WSGG) model is proposed, based on …

Development and testing of a model for turbulence-radiation interaction effects on the radiative emission

GC Fraga, PJ Coelho, AP Petry, FHR França - Journal of Quantitative …, 2020 - Elsevier
A new model to account for turbulence-radiation interaction on the radiation emission in the
framework of Reynolds-Averaged Navier-Stokes simulations is proposed and tested. The …

Investigation of the role of turbulent fluctuations on the time-averaged radiative emission in large-scale, turbulent pool fires

GC Fraga, PJ Coelho, AP Petry, FHR França - Fire Safety Journal, 2020 - Elsevier
This paper presents an analysis of turbulence-radiation interaction (TRI) effects on the
radiative emission. Correlations and auto-correlations that arise from the time-averaging of …

Large-eddy simulation of a bluff-body stabilised nonpremixed flame with radiation heat transfer

FC Miranda, PJ Coelho, J Ströhle… - Combustion Theory and …, 2020 - Taylor & Francis
Turbulence-radiation interactions are studied in this work for large-eddy simulations (LES) of
an artificially scaled configuration based on the Sydney bluff-body burner. This investigation …

Study of turbulence-radiation interactions in a heated jet using direct numerical simulation coupled to a non-gray Monte-Carlo solver

JM Armengol, R Vicquelin, A Coussement… - International Journal of …, 2020 - Elsevier
Abstract Direct Numerical Simulations of a strongly heated jet of water vapor discharging
into a low-speed coflow of cold water vapor is fully coupled with a reciprocal Monte-Carlo …

Assessment of a model for emission subgrid-scale turbulence-radiation interaction applied to a scaled Sandia flame DD

GC Fraga, FC Miranda, FHR França, J Janicka… - Journal of Quantitative …, 2020 - Elsevier
A simple model to account for subgrid-scale turbulence-radiation interaction (SGS-TRI) in
the filtered radiative emission is evaluated for coupled and uncoupled simulations of a …

Turbulence-radiation interaction in large eddy simulations of turbulent reactive flows: a review.

PJ Coelho, GC Fraga - High Temperatures-High Pressures, 2024 - search.ebscohost.com
Turbulence-radiation interaction (TRI) arises from the highly non-linear coupling between
fluctuations of radiative intensity and fluctuations of temperature and chemical composition …