CALCULATION OF THE VISCOUS RESISTANCE OF BODIES OF REVOLUTION

The flow in the tail region of a body of revolution is a complex one since there the boundary layer often grows to a thickness many times the local radius of the body and there results a strong interaction between the boundary layer and the external potential flow. The influence of making simplifying assumptions concerning the flow in this region in conventional drag-calculation methods is discussed, and assessed by incorporating a method which takes into account the effects of the thick axisymmetric boundary-layer near the tail in an approximate manner. It is shown that this modification leads to a drag-calculation method which gives consistently accurate prediction of the viscous resistance of a wide variety of bodies of revolution. (Author)

• Corporate Authors:

  University of Iowa, Iowa City

  Iowa Institute of Hydraulic Research, 300 South Riverside Drive
  Iowa City, IA  United States  52242-1585
• Authors:
  • Nakayama, A
  • Patel, V C
• Publication Date: 1973-10

Media Info

• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Bodies of revolution; Boundary layer; Flow; Resistance (Mechanics); Turbulence; Turbulent boundary layer; Viscosity
• Old TRIS Terms: Axially symmetric flow; Viscous resistance
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00057761
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: IIHR-151
• Contract Numbers: N00014-68A-0002
• Files: TRIS
• Created Date: Oct 22 1974 12:00AM