NUMERICAL AND EXPERIMENTAL METHODS FOR THE PREDICTION OF FIELD POINT VELOCITIES AROUND PROPELLER BLADES

Flow characteristics of a series of NSRDC research propellers (propellers 4381, 4382, 4383, 4498) are experimentally investigated applying Laser-Doppler Anemometer technique. This experimental method is significantly different from conventional ones in providing precise quantitative flow information which would be extremely difficult or impossible to obtain with mechanical measuring probes. The flow characteristics are directly obtained or derived from the measurement of field point velocities. Also, theoretical study has been made for the prediction of field point velocities utilizing numerical lifting-surface theory and the results are compared to those measured. It has been found that the agreement is good or at least theory nicely follows the experimental pattern, which indicates the possibility of a simple correlation between measurement and the present theory. (Author)

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Ocean Engineering, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139
  • Authors:
    • Min, K S
  • Publication Date: 1978-6

Media Info

  • Pagination: 211 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190667
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: OE-78-12 Tech Rpt.
  • Contract Numbers: N00014-76-C-0357
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM