The Proceedings of the Fluids engineering conference
Online ISSN : 2424-2896
2010
Session ID : 0101
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0101 Study on mixing characteristic of free jet under a vector control
Koji AOKoichi TSUJIMOTOToshihiko SHAKOUCHIToshitake ANDO
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
In order to develop a new mixing procedure, we conduct DNS (direct numerical simulation) of vector control for free jet. The nozzle is periodically oscillated by vector control. From view of instaneous vortex structures, it is found that the structures are associated with oscillating frequency of the nozzle. In contours of ensemble averaged streamwise velocity, the jet diffuses largely in the oscillating direction. An increasing in mixing of the vector controlled jet is observed in mean entropy distribution. Therefore, the vector control can be expected for the improvement of mixing efficiency.
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© 2010 The Japan Society of Mechanical Engineers
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