2012 2(10)

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Vinokurov A.P.1,2, Shtork S.I.1,2, Alekseenko S.V.1,2

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


Vinokurov, A.P., Shtork, S.I. and Alekseenko, S.V., (2012) Study of non-stationary vortical processes in axially symmetric chamber., Modern Science: Researches, Ideas, Results, Technologies, Iss. #2(10), PP. 45 - 49.


swirled flows; precessing vortex core


The paper is devoted to numerical and experimental study of non-stationary swirled flow in the model of axially symmetric combustion chamber. Pressure pulsations of precessing vortex core (PVC) were measured by piezoelectric sensors. That allowed to determine the frequency of PVC precession and to research dependence of frequency from different parameters of flow and swirling device. Differential strain sensors were used to study of pressure drop inside the chamber. Using of Laser Doppler Anemometer (LDA) allowed to get distribution of time-averaged axial velocity. Numerical simulations were spent with use of DES (Detached Eddy Simulation) method. Comparison of experimental and numerical data also are presented.


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