CUED Publications database

Effects of flow geometry and Damkohler number on turbulent premixed flame

Kadowaki, T and Minamoto, Y and Fukushima, N and Shimura, M and Swaminathan, N and Tanahashi, M and Miyauchi, T Effects of flow geometry and Damkohler number on turbulent premixed flame. In: The Asian Symposium on Computational Heat Transfer and Fluid Flow, 2011-9-22 to 2011-9-26, Kyoto, Japan. (Unpublished)

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Abstract

DNS of planar turbulent flame and turbulent V-flame has been conducted to investigate turbulence-scalar interaction in relatively practical turbulent combustion. Several turbulence quantities are examined for the understandings of fundamental characteristics of flow field in V-flame. Due to the additional turbulence production by the hot-rod, turbulence does not simply decay in V-flame. Turbulence-scalar interaction, scalar alignments with the principal strain rate in other words, is then clarified. The competition of turbulence and dilatation can be found in the conditional PDF of flame normal alignment. The results suggests that the alignment characteristics in high Da flames are applicable to low Da flames in the region of intense heat release.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:34
Last Modified: 10 Mar 2014 17:20
DOI: