COMPUTATION OF VISCOUS FLOW AROUND PROPELLER-BODY CONFIGURATIONS: SERIES 60 CB = 0.6 SHIP MODEL

Validation of a viscous-flow method for predicting propeller-hull interaction is provided through detailed comparisons with recent extensive experimental data for the practical three-dimensional configuration of the Series 60 CB = 0.6 ship model. Modifications are made to the K- turbulence model for the present geometry and application. Agreement is demonstrated between the calculations and global and some detailed aspects of the data; however, very detailed resolution of the flow is lacking. This supports the previous conclusion for propeller-shaft configurations and axisymmetric bodies that the present procedures can accurately simulate the steady part of the combined propeller-hull flow field, although turbulence modelling and detailed numerical treatments are critical issues. The present application enables a more critical evaluation through further discussion of these and other relevant issues, such as the use of radial- and angular-varying body-force distributions, the relative importance of turbulence modelling and grid density on the resolution of the harmonics of the propeller inflow, and three-dimensional propeller- hull interaction, including the differences for the nominal and effective inflows and for the resulting steady and unsteady propeller performance. Also, comparisons are made with an inviscid-flow method. Finally, some concluding remarks are made concerning the limitations of the method, requirements and prognosis for improvements, and application to the design of wake-adapted propellers.

  • Supplemental Notes:
    • J Ship Res, v 38 n 2, June 1994, p 137 [21 p, 16 ref, 4 tab, 18 fig]
  • Authors:
    • Stern, F
    • Kim, H T
  • Publication Date: 1994

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717488
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM