ENTRY FLOW IN A CHANNEL. PART 3. INLET IN A UNIFORM STREAM

The report complements earlier papers by Van Dyke (1970) and by Wilson (1971) which have appeared under the same title. Second-order boundary-layer theory is used to examine the region near the entrance to a single channel placed in a uniform stream. It is found that there are additional effects to those present in the three models treated by Van Dyke and Wilson. In particular, the cascade model misses the leading term in the separation force while the irrotational-entry model misses that in the skin friction. There are also two new effects far downstream: logarithmic terms appear (apparently for the first time in second-order theory); and a resonance with the first eigensolution occurs. (Author)

• Supplemental Notes:
  • Originally published in Journal of Fluid Mechanics, Vol. 57, Part 4, pp 769-784, 1973.
• Corporate Authors:

  Cornell University

  Department of Theoretical and Applied Mechanics
  Ithaca, NY  United States 
• Authors:
  • Kapila, A K
  • Ludford, G S
  • Olunloyo, VOS
• Publication Date: 1972-8-28

Media Info

• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Boundary layer; Boundary layer flow; Boundary value problems; Flow; Fluid dynamics; Numerical analysis; Potential theory; Skin friction; Velocity
• Uncontrolled Terms: Fluid flow; Separation
• Old TRIS Terms: A; Boundary layer theory
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00051191
• Record Type: Publication
• Source Agency: National Technical Information Service
• Contract Numbers: DA-ARO-D-31-124-71-G
• Files: TRIS
• Created Date: Feb 28 1974 12:00AM