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: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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
Title of host publication4th International Symposium on Turbulence and Shear Flow Phenomena
Pages841-846
Number of pages6
Volume2
Publication statusPublished - 2005
Externally publishedYes
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

Fingerprint

Direct numerical simulation
Combustors
Nozzles
Statistics

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. In 4th International Symposium on Turbulence and Shear Flow Phenomena (Vol. 2, pp. 841-846)

On the relationship between large-scale vortical structures and scalar transport processes in a controlled confined coaxial jet. / Mitsuishi, Akihiko; Fukagata, Koji; Kasagi, Nobuhide.

4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 2 2005. p. 841-846.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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. in 4th International Symposium on Turbulence and Shear Flow Phenomena. vol. 2, pp. 841-846, 4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4, Williamsburg, VA, United States, 05/6/27.
Mitsuishi A, Fukagata K, Kasagi N. On the relationship between large-scale vortical structures and scalar transport processes in a controlled confined coaxial jet. In 4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 2. 2005. p. 841-846
Mitsuishi, Akihiko ; Fukagata, Koji ; Kasagi, Nobuhide. / On the relationship between large-scale vortical structures and scalar transport processes in a controlled confined coaxial jet. 4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 2 2005. pp. 841-846
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