PIV and LIF study of flow and thermal fields of twine plumes in water

0465710 - ÚT 2017 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Broučková, Zuzana - Trávníček, Zdeněk
PIV and LIF study of flow and thermal fields of twine plumes in water.
Proceedings of the International conference Experimental Fluid Mechanics 2016. Liberec: Polypress s.r.o., 2016 - (Dančová, P.), s. 125-132
[Experimental Fluid Mechanics 2016. Mariánské Lázně (CZ), 15.11.2016-18.11.2016]
Grant CEP: GA ČR GA14-08888S; GA ČR(CZ) GA16-16596S
Institucionální podpora: RVO:61388998
Klíčová slova: plume * PIV * LIF
Kód oboru RIV: BK - Mechanika tekutin

Flow and thermal fields of a pair of plane plumes in water are investigated using PIV and LIF experiments. The plumes are generated from thermal line sources (electrically heated cylinders, diameter D = 1.21 mm). Either continuous or pulsating heating were used with the same heating input power. For a continuous heating, low frequency oscillations were identified and the natural frequency was evaluated as 0.5 Hz. Pulsating heating was used at frequency of 0.25 Hz. The maximum time-mean velocity magnitude at the continuous and pulsating heating were commensurable, approximately 0.007 m/s. Temperature fields reasonably agree with these findings.
Trvalý link: http://hdl.handle.net/11104/0266670