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Document type: Papers

Conference/Event: Experimental Fluid Mechanics 2016, Mariánské Lázně (CZ), 20161115

Year:2016

Language: eng

Abstract: Our research focuses on breakup of bubbles and drops induced by a flow turbulence. In this contribution, we describe the experimental setup used for studying the breakup, and we characterize flow within it. The setup is a rectangular glass cell, in which a turbulent flow is generated by a set of coaxial nozzles. The flow within it is characterized by means of particle image velocimetry. From the velocity data, i) local dissipation rate (ε) is estimated using Large-Eddy PIV method, and ii) statistics of velocity difference in two points is evaluated. Estimation of ε is validated by integrating the total dissipation in the setup, which reasonably agrees with the injected kinetic energy. The probability density function of velocity difference is non-Gaussian and when properly normalized, it is universal within the setup.

Keywords:breakup cell; particle image velocimetry; turbulent flow

Project no.: GA15-15467S (CEP)

Host item entry: Proceedings of the International Conference Experimental Fluid Mechanics, ISBN N

Note: Související webová stránka: http://hdl.handle.net/11104/0268000

Rights: Document is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR(web)

Original record: http://hdl.handle.net/11104/0268000

Permalink: http://www.nusl.cz/ntk/nusl-263127



Autor: Vejražka, Jiří ; Zedníková, Mária ; Stanovský, Petr

Fuente: http://invenio.nusl.cz/record/263127?ln=en







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