Analytical model of the time variation of liquid film thickness under saturation pool boiling bubbles

Conference · Thu Jul 01 00:00:00 EDT 1999

OSTI ID:20030454

Yajima, Takeshi; Yabe, Akira; Takahashi, Katsuyuki; Maki, Hiroshi

Zuber's and Katto's models have been proposed for explaining the mechanism of burnout heat flux. But these are static models, and do not account for the EHD (Electro-hydrodynamical) effects. The authors therefore determined the dynamic burnout heat flux mechanisms by measuring the EHD enhancement effect and by measuring the time-dependent thickness of the thin liquid film under pool boiling bubbles. They found that the time variation of the liquid film thickness is controlled by the surface tension around the edge of the bubbles and by the repeated supply and discharge of liquid from the thin liquid film region under the bubbles.

• Research Organization: Univ. of Tsukuba, Ibaraki (JP)
• OSTI ID: 20030454
• Resource Relation: Conference: 5th ASME/JSME Thermal Engineering Joint Conference, San Diego, CA (US), 03/14/1999--03/19/1999; Other Information: 1 CD-ROM. Operating system required: Windows i386(tm), i486(tm), Pentium (R) or Pentium Pro, MS Windows 3.1, 95, or NT 3.51, 8 MB RAM, MacIntosh and Power MacIntosh with a 68020 or greater processor, System software version 7.1, 3.5 MB RAM (5 MB for PowerMac) 6 MB available hard-disk space, Unix; PBD: 1999; Related Information: In: Proceedings of the 5th ASME/JSME thermal engineering joint conference, [3600] pages.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BURNOUT
CRITICAL HEAT FLUX
ELECTRIC FIELDS
AUGMENTATION
HEAT TRANSFER
POOL BOILING
BUBBLES
MATHEMATICAL MODELS