BOUNDARY-LAYER SEPARATION AT A FREE STREAMLINE. PART 3. AXISYMMETRIC FLOW AND THE FLOW DOWNSTREAM OF SEPARATION

The 1970-71 results of Ackerberg on the two-dimensional boundary-layer separation at a sharp trailing edge where a free streamline is attached, are extended to the axisymmetric case, with and without swirl. When the flow has swirl, the boundary-layer swirl velocity close to the wall may be opposite to that in the external flow; this may help explain the 'bathtub vortex paradox' observed by Sibulkin (1962). The solutions for the detached shear layers downstream of separation for two-dimensional and axisymmetric flows, with and without swirl, have been obtained. (Author)

  • Supplemental Notes:
    • See also Part 2, AD-733 045. Also available in Journal of Fluid Mechanics Vol. 54 Pt 4, p645-663 1973.
  • Corporate Authors:

    Polytechnic Institute of Brooklyn

    333 Jay Street
    Brooklyn, NY  USA  11201
  • Authors:
    • Ackerberg, R C
  • Publication Date: 1973-1-29

Media Info

  • Pagination: 22 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00052228
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: DA-ARO-D31-124-73091
  • Files: TRIS
  • Created Date: May 7 1974 12:00AM