HYDRODYNAMIC EVALUATION OF HULL FORMS WITH PODDED PROPULSORS

A computational capability has been developed to predict and visualize the flow about podded propulsors appended to the 154-foot transom stern research vessel, R/V ATHENA. The computer generation of a complex geometric model for the hull and appendages is an important part of this new capability. The flow field is computed using a free surface potential flow method. The steady flow induced by the propulsor is simulated by an idealized propeller model (actuator disk). The upstream effects of an actuator disk are examined and results are compared to the case without an actuator disk. Computed results for the inflow to the propeller disk are presented as velocity vector plots and contour plots. Harmonic analyses are performed on the computed velocity components. The numerical results can be used in conjunction with experiments to aid in the design of podded propulsors. This powerful design approach can be used for future Navy ship designs.

  • Availability:
  • Supplemental Notes:
    • Journal article; Reprints paper presented at ASNE Day, 1989
  • Authors:
    • Cheng, B H
    • Dean, J A
    • Miller, R W
  • Publication Date: 1989-5

Media Info

  • Features: References;
  • Pagination: 10 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00657303
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM