Vortex formation behind a cylinder in a fluctuating flow. (English. Russian original) Zbl 1302.76006
Fluid Dyn. 49, No. 5, 596-601 (2014); translation from Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza 2014, No. 5, 38-44 (2014).
Summary: A visual investigation of the flow structure in the near wake behind a transverse cylinder in a fluctuating flow is carried out. The experiments were performed on a special setup, on wide ranges of the frequencies and amplitudes of superimposed fluctuations. Characteristic flow patterns are revealed and the corresponding wake flow structures are described. On the basis of the generalization of the information obtained the flow pattern map is constructed.
Keywords:
transverse flow past a cylinder; von Kàrmàn vortices; flow visualization; flow fluctuations; fluctuation frequency and amplitude; flow pattern mapReferences:
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