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Three-Dimensional Reconstruction of Bubble Distribution in Two-Phase Flows With Metaball Technique

[+] Author Affiliations
Toru Furukawa, Yassin A. Hassan

Texas A&M University, College Station, TX

Javier Ortiz-Villafuerte

Instituto Nacional de Investigaciones Nucleares, Ocoyoacac, Edo. de México, Mexico

Paper No. FEDSM2003-45218, pp. 2345-2350; 6 pages
doi:10.1115/FEDSM2003-45218
From:
  • 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

abstract

A three-dimensional reconstruction method using shadowgraphy for complex shaped bubbly flows is proposed. Bubble distribution is represented by a metaball object. Metaballs have the capability of representing smooth but complex surfaces. The fundamental strategy is searching the optimal metaball object equivalent to the original bubble distribution. The method does not assume that every bubble has a certain size or shape, therefore, intensive image processing on shadow images is not required. This method has applied to both synthetic bubble shadow images and those obtained from a real experiment, and the results indicate the potential ability of bubble reconstruction.

Copyright © 2003 by ASME

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