MICROBUBBLE DRAG REDUCTION

Methods for decreasing the drag of hydrodynamic vehicles are of paramount interest because they translate directly into improved performance and more efficient operation. In general, the drag on a vehicle is composed of viscous-, pressure-, and wave-drag components. For many present-day hydrodynamic vehicles it is the viscous drag that dominates, and for this reason the present study is focused on the control of this component of the drag. It deals with a concept for controlling turbulent shear stress, involving the introduction of a large number of small bubbles ("microbubbles") into a turbulent boundary layer. The concept relies upon the presence of two phases, so its application is limited to liquid boundary layers.

  • Supplemental Notes:
    • Conference paper
  • Authors:
    • Merkle, C L
    • Deutsch, S
    • Pal, S
  • Conference:
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 17p., incl. discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00657861
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM