2015 1(16)

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Pages:

211 - 216

Language:

RU

Ref.:

18


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VISUALIZING THE EVOLUTION AND INTERECTION OF VORTICES IN A QUASI TWO-DIMENSIONAL JET

Shestakov M.V.1, Tokarev M.P.1, Markovich D.M.1,2

1 Institute of Thermophysics SB RAS, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia


Citation:

Shestakov, M.V., Tokarev, M.P. and Markovich, D.M., (2015) Visualizing the evolution and interection of vortices in a quasi two-dimensional jet, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(16), PP. 211 - 216.


Keywords:

quasi-two-dimensional jet; time-resolved tomographic PIV; dynamics of vortex structure


Abstracts:

The work focuses on investigation of spatial-temporal 3D vortex structure of a quasi two-dimensional turbulent jet. Time-resolved tomographic PIV technique with repetition rate up to 10 kHz was used to measure 3D velocity distributions. It was shown that in quasi two-dimensional turbulent jet two types of coherent vortex structures exist. On the basis of instantaneous distributions of Q criterion 3D dynamics of vortex structure is studied. Longitudinal secondary vortex structures in far field of the quasi two-dimensional turbulent jet were detected for the first time.


References:

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