Detailed radiation modeling of two flames relevant to fire simulation using Photon Monte Carlo — Line by Line radiation model
No Thumbnail Available
Access rights
embargoedAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2024-12
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
12
Series
Journal of Quantitative Spectroscopy and Radiative Transfer, Volume 329
Abstract
This work reports benchmark data sets for radiative heat transfer in two distinct fire configurations obtained from the Measurement and Computation of Fire Phenomena (MaCFP) working group database. The cases include a 19.2 kW non-sooting turbulent methanol pool fire and a 15 kW sooting ethylene flame (referred to as the FM burner). The base configurations were simulated with large eddy simulation (LES) approaches using two different codes, namely FireFOAM and Fire Dynamics Simulator, respectively. Multiple frozen snapshots from these LES runs were radiatively evaluated using a photon Monte Carlo radiation solver and a line-by-line spectral model. The results were presented at three levels: Firstly, the radiative fields, including radiative emission, reabsorption, and heat flux contours, were shown. Secondly, the global radiative contributions from molecular gas species, soot, and wall boundaries were compared. Thirdly, a detailed spectral analysis of radiative fields for different components within five distinct spectral bands was presented. In the case of the non-sooting methanol pool fire, the radiative emission from CO2 predominates. However, for the radiation reaching the boundaries, both CO2 and H2O contribute almost equally. Conversely, for the sooty FM burner configuration, radiative emission from soot, CO2, and H2O all contribute similarly. In terms of radiation reaching the boundary, soot is the primary contributor in FM Burner. In the methanol pool fire, the pool surface receives a comparable contribution from CO2, H2O, and burner rim radiation, whereas, for the FM burner, the burner inlet surface primarily receives radiation from soot.Description
Publisher Copyright: © 2024 Elsevier Ltd
Keywords
Fire, Line-by-Line, MaCFP, Photon Monte Carlo, Radiation
Other note
Citation
Paul, C, Roy, S, Sailer, J, Brännström, F, Ahmed, M M, Trouvé, A, Bordbar, H, Hostikka, S & McDermott, R 2024, ' Detailed radiation modeling of two flames relevant to fire simulation using Photon Monte Carlo — Line by Line radiation model ', Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 329, 109177 . https://doi.org/10.1016/j.jqsrt.2024.109177