Drag reduction using trapped bubbles on a flat plate surface

K. A. Stephani, K. C. Marr, R. Doctor, D. B. Goldstein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Flow over a submerged flat plate covered with different sized bubbles was studied. The objective was to determine if viscous drag reduction could be obtained by replacing portions of the solid no-slip surface of the plate with areas of near-slip formed by the bubbles. Drag was measured independently by a force balance for a vertical plate partially covered by an array of tiny trapped bubbles and by a wake survey momentum balance for a horizontal plate configuration with a large trapped bubble on the lower surface. Preliminary results show a drag reduction of 40-60% was obtained for the case of a large trapped bubble and 2-3% for the array of tiny trapped bubbles.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 3rd AIAA Flow Control Conference
Pages845-863
Number of pages19
StatePublished - Dec 11 2006
Externally publishedYes
Event3rd AIAA Flow Control Conference - San Francisco, CA, United States
Duration: Jun 5 2006Jun 8 2006

Publication series

NameCollection of Technical Papers - 3rd AIAA Flow Control Conference
Volume2

Other

Other3rd AIAA Flow Control Conference
CountryUnited States
CitySan Francisco, CA
Period6/5/066/8/06

ASJC Scopus subject areas

  • Engineering(all)

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