Direct numerical simulations of statistically stationary turbulent premixed flames

Hong G. Im*, Paul G. Arias, Swetaprovo Chaudhuri, Harshavardhana A. Uranakara

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Direct numerical simulations (DNS) of turbulent combustion have evolved tremendously in the past decades, thanks to the rapid advances in high performance computing technology. Today's DNS is capable of incorporating detailed reaction mechanisms and transport properties, with physical parameter ranges approaching laboratory scale flames, thereby allowing direct comparison and crossvalidation against laser diagnostic measurements. While these developments have led to significantly improved understanding of fundamental turbulent flame characteristics, there are increasing demands to explore combustion regimes at higher levels of turbulent Reynolds (Re) and Karlovitz (Ka) numbers, with a practical interest in new combustion engines driving towards higher efficiencies and lower emissions. The paper attempts to provide a brief overview of the state-of-the-art DNS of turbulent premixed flames at high Re/Ka conditions, with an emphasis on homogeneous and isotropic turbulent flow configurations. Some important qualitative findings from numerical studies are summarized, new analytical approaches to investigate intensely turbulent premixed flame dynamics are discussed, and topics for future research are suggested.

Original languageEnglish (US)
Title of host publicationASPACC 2015 - 10th Asia-Pacific Conference on Combustion
PublisherCombustion Institute
StatePublished - 2015
Event10th Asia-Pacific Conference on Combustion, ASPACC 2015 - Beijing, China
Duration: Jul 19 2015Jul 22 2015

Other

Other10th Asia-Pacific Conference on Combustion, ASPACC 2015
CountryChina
CityBeijing
Period07/19/1507/22/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Direct numerical simulations of statistically stationary turbulent premixed flames'. Together they form a unique fingerprint.

Cite this