Accession Number : AD0631286

Title :   INTERACTION OF CONCENTRATED VORTICITY WITH AN ADVANCING SHOCK AND EXPANSION WAVE.

Descriptive Note : Final rept.,

Corporate Author : SYRACUSE UNIV RESEARCH INST N Y DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s) : Dosanjh,Darshan S.

Report Date : MAR 1966

Pagination or Media Count : 12

Abstract : Results of the experimental and analytical investigations on (i) Interaction of an advancing shock front and a starting vortex flow field, (ii) Interaction of an advancing shock front and a vortex street flow field and (iii) Interaction of a rectilinear circular vortex flow field with a progressing expansion wave, are summarized. The experimental phase of these investigations was conducted in a shock tube and the transient interaction data were recorded using spark shadowgraph, schlieren and interferometric techniques. The observed distortion of the advancing reflected shock front, the transmitted (interacted) vortex flow field and the characteristics of a growing acoustic wave front generated as a result of reflected shock-vortex interaction were recorded and analyzed. Theoretical analyses of (a) generation of sound front due to shock-vortex interaction (b) the non-steady interaction of a rectilinear circular flow field with an advancing expansion wave, were accomplished. (Author)

Descriptors :   (*SHOCK WAVES, *VORTICES), EXPERIMENTAL DATA, AIRFOILS, AERODYNAMIC CHARACTERISTICS, SOUND

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE