Open-water tests were performed with a model propeller in a water flume with polymer injection ahead of the propeller disk. The thrust and torque were measured at a number of revolutions and at one rate of flow of water. The analysis of the tests indicates a definite reduction of propeller thrust and an increase of torque when polymer additives were injected ahead of the propeller disk, resulting in the reduction of the propeller efficiency "in the open". For an average concentration of 20 ppm of the additive passing through the propeller disk, the efficiency was reduced by approximately 5 percent.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  United States  10019
  • Authors:
    • Kowalski, T
  • Publication Date: 1971-1

Media Info

  • Features: References;
  • Pagination: p. 11-14
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00019358
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Nov 25 1973 12:00AM