Sudden Deceleration of a Free Jet at the Entrance of a Channel
Abstract
A family of two-dimensional potential flows is derived which may describe the interaction of a propulsion jet with the leading edge of a thin wing-in-ground effect at zero angle of attack with a deflected trailing edge flap. Assuming that such flows occur at the leading edge, the static performances of this arrangement-called the Power Augmented Ram Wing-are derived as functions of geometry. A minimum power point is found for given thrust and lift. At this minimum power point, the wing can be held about one-tenth of its chord above the surface while providing a lift force of about six times the installed thrust and recovering about four-fifths of the installed thrust.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA033659
Entities
People
- David W Taylor
- Roger W. Gallington