Full Content is available to subscribers

Subscribe/Learn More  >

Modeling and Computational Study on Microbubble Two-Phase Turbulent Flow

[+] Author Affiliations
Toru Arakawa, Kazuyuki Toda, Makoto Yamamoto

Tokyo University of Science, Tokyo, Japan

Paper No. FEDSM2003-45760, pp. 781-786; 6 pages
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME


The drag reduction is needed for the economical ship operations and the suppression of CO2 emission. Microbubble injection is one of the promising techniques for the purpose. It was experimentally confirmed that the skin friction could be reduced remarkably, by injecting the microbubbles with the diameter of 0.5 to 1.0mm from the bottom of a ship hull. Although a great number of papers can be seen in the literatures, unfortunately, the efficient and accurate computer code, which can calculate the global flow phenomenon around a ship hull and can be used in the ship design, has never been developed. In the present study, the correlations between liquid and microbubbles are modeled and computed, by using the two-fluid model. The Reynolds stress transport model is employed for the accurate prediction of the bubble behavior around a ship. The present model is tuned and verified, based on the fundamental experiment conducted by Kodama et al. in 2000. Furthermore, using the present model, the drag reduction mechanism by microbubbles is numerically investigated for a wide variety of void fraction and flow conditions. It is confirmed that the present Reynolds stress model can capture the characteristic of drag reduction by the microbubbles.

Copyright © 2003 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In