Location of Repository

LES Study of Influence of Obstacles on Turbulent Premixed Flames in a Small Scale Vented Chambers

By S Gubba, S Ibrahim and W Malalasekera

Abstract

The LES study reported in this paper presents the influence of number and position of the obstacles on turbulent premixed flames. LES simulations have been carried out for a stagnant, stoichiometric propane/air mixture, ignited from rest in a small laboratory scale, vented chamber, capable of rearranging into various configurations based on number and position of baffle plates. The novelty of the present study is two folded. First is the application of novel dynamic flame surface density (DFSD) model to account the sub-grid scale (SGS) chemical reaction rate in LES. Second is the arrangement of these configurations into four families, which facilitate a qualitative comparison with available experimental measurements. The concept of families also offers to understand the flame-flow interactions and the impact of number and position of the baffles with respect to ignition origin

OAI identifier: oai:eprints.whiterose.ac.uk:42652

Suggested articles

Preview


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.