Accession Number : ADA118473

Title :   Unsteady Transonic Flow in a Two-Dimensional Diffuser.

Descriptive Note : Final technical rept. 1 Apr 77-31 Mar 82,

Corporate Author : MCDONNELL DOUGLAS RESEARCH LABS ST LOUIS MO

Personal Author(s) : Sajben,Miklos ; Bogar,Thomas J ; Kroutil,Joseph C

PDF Url : ADA118473

Report Date : 31 Mar 1982

Pagination or Media Count : 23

Abstract : Nominally two-dimensional flows in two convergent-divergent diffuser models were investigated experimentally. The flows contained a normal shock downstream of the throat with pre-shock Mach numbers ranging to 1.4. Self-sustaining fluctuations occurred invariably and were closely investigated. Steady and fluctuating wall and midstream pressures were measured; high-speed schlieren photography was extensively employed. Shock displacement histories were measured with a line-scan camera technique. (Author)

Descriptors :   *Transonic flow, *Two dimensional flow, *Diffusers, *Unsteady flow, Flow fields, Air breathing engines, Boundary layer, Mach number, Thickness

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE