Title

LES and multi-step chemical reaction in compartment fires

Document Type

Journal Article

Publisher

Taylor and Francis Inc.

School

School of Engineering

RAS ID

21598

Funders

ARC, Australian Research Council

Grant Number

LP130100927

Comments

Originally published as: Yuen, A.C.Y., Yeoh, G.H., Timchenko, V., Barber, T. (2015). LES and multi-step chemical reaction in compartment fires in Numerical Heat Transfer; Part A: Applications, 68(7), 711-736. Available here.

Abstract

Numerical studies on two large-scale compartment buoyant fires were performed utilizing a fully coupled Large Eddy Simulation (LES) and strained laminar flamelet combustion model, extended from single-step to multistep chemical reaction. Two Subgrid-Scaled (SGS) turbulent models, Smagorinsky and WALE, were examined for center and corner fires. Compared with the experimental and existing numerical data, the WALE model with a multistep chemical reaction gave the best prediction for the upper hot layer and doorway gas temperatures. Specie concentrations including oxygen, carbon dioxide, and carbon monoxide were also found to compare well against the experimental measurements when the WALE model with a multistep chemical reaction was adopted.

DOI

10.1080/10407782.2015.1012886