The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2003
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Direct numerical simulation analysis on vortex and reaction in spatially developed reacting turbulent
Kiyotaka HIRADATEShuichiro Hirai
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 189-190

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Abstract
Fully developed turbulent reacting jet formed by introducing inlet condition given by a turbulent channel flow was analyzed by the data base fo direct numerical simulation. We show that characteristic vortex structure exist in fully developed turbulent jet. Spanwize vortices exist in high-shear region and streamwise vortices bridge gaps between spanwize vortices. Detailed interpretation has been made to elucidate the interactions between vortex distribution, where streamwise and spanwize vorticities interact. Streamwise vorticity becomes large where spanwize vorticity is large, which indicate that rotation of spanwize vortices stretch streamwise ones.
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© 2003 The Japan Society of Mechanical Engineers
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