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Characterization of Turbulent Flow in a Breakup Cell.
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SYSNO ASEP 0470325 Document Type C - Proceedings Paper (int. conf.) R&D Document Type O - Ostatní Title Characterization of Turbulent Flow in a Breakup Cell. Author(s) Vejražka, Jiří (UCHP-M) RID, ORCID, SAI
Zedníková, Mária (UCHP-M) RID, ORCID, SAI
Stanovský, Petr (UCHP-M) RID, ORCID, SAISource Title Proceedings of the International Conference Experimental Fluid Mechanics. - Karlovy Vary : Polypress, 2016 / Dančová P. - ISBN N Pages s. 890-896 Number of pages 7 s. Publication form Medium - C Action Experimental Fluid Mechanics 2016 Event date 15.11.2016 - 18.11.2016 VEvent location Mariánské Lázně Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords turbulent flow ; particle image velocimetry ; breakup cell Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GA15-15467S GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 Annotation 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. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2017 Electronic address http://hdl.handle.net/11104/0268000
Number of the records: 1