NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

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

Published

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
Fire modeling

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 October 28, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created June 15, 2025, Updated September 30, 2025
Was this page helpful?