Theory of the Staggered Diffuser,
Abstract
In order to check the flow of a liquid or gas moving at subsonic velocity, diffusers with constantly increasing (in the direction of the output) cross-sections are usually employed. Most frequently, diffusers are of conical design with opening angle of 8-10 degrees. In such devices pressure drop is mainly due to friction with the walls. In certain cases, however, the use of a diffuser of this design is impossible for one reason or another, and retardation of the flow must be achieved by a sudden increase in cross-sectional area. In such cases the jet is diverted from the walls and from the butt end of the channel which joins the tube, and in this way a stagnant region appears. Flow in such diffusers is characterized by intensive eddies, which result from great pressure drops. The paper is devoted to a type of staggered diffuser in which the flow encounters several 'sudden' increases in cross-section. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 14, 1970
- Accession Number
- AD0716505
Entities
People
- Yu. N. Vasilev
Organizations
- National Air and Space Intelligence Center