Experimental study for local air/water flow structure of bubbly and slug flow regime

Show simple item record

dc.contributor.author Euh, D.J.
dc.contributor.author Nguyen, V.T.
dc.contributor.author Yun, B.J.
dc.contributor.author Song, C.-H.
dc.date.accessioned 2015-04-24T09:11:40Z
dc.date.available 2015-04-24T09:11:40Z
dc.date.issued 2012
dc.description.abstract Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_ZA
dc.description.abstract A study for local hydraulic characteristics of water and air/steam mixture flow is a very challenging topic for advanced thermal hydraulic analysis code development. Recently, many researchers made efforts in the study of mechanistic feature related to the two phase dynamics such as an interfacial area transport model. The mechanistic study for the interfacial area needs a lot of understanding for the bubble/drop dynamics and flow propagation phenomena. To generate an experimental data base for a modeling, an air/water test was performed in this study. The facility has a cylindrical acryl test section of which the diameter and height are 80 mm and 10m, respectively. The major local parameters to be measured are the void fraction, bubble/liquid velocities, interfacial area concentration and bubble size. To investigate the transport phenomena of the twophase parameters, a local probe and an impedance void meter(IVM) are installed at three axial elevations of the test section. (L/D=12.2, 42.2, 100.7) The test range covers 0.5~2.8 m/s and 0.04~1.2 m/s of the superficial liquid and gas velocity, respectively, which corresponds to the bubbly and slug flow regimes. The system pressure conditions are 0.2~0.3 MPa at the L/D=12.2. en_ZA
dc.description.librarian dc2014 en_ZA
dc.format.extent 6 pages en_ZA
dc.format.medium PDF en_ZA
dc.identifier.citation Euh, DJ, Nguyen, VT, Yun, BJ & Song, C-H 2012, Experimental study for local air/water flow structure of bubbly and slug flow regime, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_ZA
dc.identifier.isbn 9781868549863
dc.identifier.uri http://hdl.handle.net/2263/44787
dc.language.iso en en_ZA
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA
dc.relation.ispartof HEFAT 2012 en_US
dc.rights University of Pretoria en_ZA
dc.subject Hydraulic characteristics en_ZA
dc.subject Advanced thermal hydraulic analysis en_ZA
dc.subject Interfacial area transport model en_ZA
dc.subject Impedance void meter en_ZA
dc.subject IVM en_ZA
dc.title Experimental study for local air/water flow structure of bubbly and slug flow regime en_ZA
dc.type Presentation en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record