Evaluating Performance Of Approximate Radiation Models Against Photon Monte Carlo Line-By-Line Benchmark For Fire Simulation

Published

June 15, 2025

Author(s)

Chandan Paul, Somesh Roy, Johannes Sailer, Fabian Br¨annstr¨om, Mohamed Mohsen Ahmed, Arnaud Trouv´e, Hadi Bordbar, Simo Hostikka, Randall McDermott

Abstract

The Measurement and Computation of Fire Phenomena (MaCFP) radiation working group previously provided benchmark radiation data for two fire configurations using the Photon Monte Carlo Line-by-Line (PMC-LBL) radiation model. This study evaluates the performance of approximate radiation models, specifically lower-order spherical harmonics method (P1) and Finite Angle Method (FAM) radiation transfer equation (RTE) solvers combined with Gray, Step-Wise Gray (SWG), and Full Spectral k-Distribution (FSK) spectral models, against the PMC-LBL benchmark. Among these, in terms of accuracy and computational cost, the SWG with ten bands and FSK with 16 quadrature points coupled with FAM RTE solver emerge as good candidates for approximate radiation models in engineering applications.

Conference Dates

June 15-20, 2025

Conference Location

Kuşadasi, TR

Conference Title

The 11th International Symposium on Radiative Transfer (RAD-25)

Pub Type

Conferences

Download Paper

https://doi.org/10.1615/RAD-25.190

Local Download

Keywords

Radiation Modeling, Fire, Photon Monte Carlo, Line-by-Line, MaCFP

Citation

Paul, C. , Roy, S. , Sailer, J. , Br¨annstr¨om, F. , Mohsen Ahmed, M. , Trouv´e, A. , Bordbar, H. , Hostikka, S. and McDermott, R. (2025), Evaluating Performance Of Approximate Radiation Models Against Photon Monte Carlo Line-By-Line Benchmark For Fire Simulation, The 11th International Symposium on Radiative Transfer (RAD-25) , Kuşadasi, TR, [online], https://doi.org/10.1615/RAD-25.190, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=959329 (Accessed November 19, 2025)