On the relationship between large-scale vortical structures and scalar transport processes in a controlled confined coaxial jet

Akihiko Mitsuishi, Koji Fukagata, Nobuhide Kasagi

Research output: Contribution to conferencePaper

Abstract

We carry out direct numerical simulation (DNS) of scalar transport and mixing in a coaxial jet issued into a small model combustor. Analysis is made on the detailed mechanism of mixing enhancement achieved by an active control of the near-field large-scale vortical structures. The main interest lies in the relationship between these vortical structures and associated scalar transport processes in the near field downstream of the nozzle exit. From the phase-averaged statistics, the mechanism of mixing enhancement is revealed in the case of the best mixing achieved.

Original languageEnglish
Pages841-846
Number of pages6
Publication statusPublished - 2005 Dec 1
Event4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4 - Williamsburg, VA, United States
Duration: 2005 Jun 272005 Jun 29

Other

Other4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4
CountryUnited States
CityWilliamsburg, VA
Period05/6/2705/6/29

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ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Mitsuishi, A., Fukagata, K., & Kasagi, N. (2005). On the relationship between large-scale vortical structures and scalar transport processes in a controlled confined coaxial jet. 841-846. Paper presented at 4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4, Williamsburg, VA, United States.