Supersonic Plane Streams Separated by a Jet Flap,
Abstract
Two plane supersonic streams of inviscid gas separated at first by a rigid rectilinear wall and then by a jet flap ejected from the end of the wall at a certain delta angle are considered. The determination of the resulting jet configuration is the object of the study. The method used is based on the formula established previously by Carafoli, which gives the pressure as a function of deviation in a simple form and which makes it possible to derive parametric equations of the jet trajectory. Thus, all flow characteristics (pressure, velocity, etc.) can be determined as a function of deviation. It is pointed out that despite the fact that the pressure in the lower stream is two times higher than that in the upper stream the resulting flow is deflected downward. This phenomenon is explained by the large pressure losses in the Newtonian regime due to the collosion of gas particles with the jet flap. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 06, 1969
- Accession Number
- AD0863431
Entities
People
- D. Pantazopol
- E. Carafoli
Organizations
- National Air and Space Intelligence Center