Accession Number : AD0738335

Title :   Experimental Study of Transition Induced in an Accelerated Boundary Layer at Low Reynolds Numbers.

Descriptive Note : Scientific rept.,

Corporate Author : AERONAUTICAL RESEARCH ASSOCIATES OF PRINCETON INC N J

Personal Author(s) : Snedeker,Richard S.

Report Date : OCT 1971

Pagination or Media Count : 72

Abstract : The response of a highly accelerated laminar boundary layer to disturbances introduced by a vibrating ribbon is described. The boundary layer was formed on a flat plate under the influence of a pressure gradient equal to that occurring at a two-dimensional stagnation point. The range of initial test Reynolds numbers was 492 to 805, and the range of nondimensional disturbance frequencies (Strouhal number) was .03 to .20. The qualitative effects of disturbances from extraneous sources are discussed, and some observations of the detailed motion of the vibrating ribbon are described.

Descriptors :   (*BOUNDARY LAYER TRANSITION, EXPERIMENTAL DATA), (*LAMINAR BOUNDARY LAYER, RESPONSE), FLAT PLATE MODELS, TWO DIMENSIONAL FLOW, STABILITY, FLOW FIELDS, VIBRATION, TEST EQUIPMENT

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE