Accession Number : ADA198091

Title :   Management and Control of Unsteady and Turbulent Flows.

Descriptive Note : Annual technical rept. Oct 86-Oct 87,

Corporate Author : ILLINOIS INST OF TECH CHICAGO FLUID DYNAMICS RESEARCH CENTER

Personal Author(s) : Nagib, Hassan M ; Acharya, Mukund ; Corke, Thomas C ; Reisenthel, Patrick H ; Wark, Candace E

PDF Url : ADA198091

Report Date : Jun 1988

Pagination or Media Count : 15

Abstract : Progress in four areas of research has been achieved during the first year. I. Controlled Transitioning Boundary Layers: phase coupled plane TS waves and oblique waves are used to study various types of transition including detuned modes. II. Turbulent Boundary Layer Structure and Control: the structures responsible for the turbulence production in high Reynolds number boundary layers have been documented and manipulated. III. Management of Unsteady and Three-dimensional Flows: flows over airfoils, axisymmetric forebodies, vortex-wing interactions, and wing-body junctions, are examined with and without passive and active flow manipulators including zero-mass base bleed. IV. Scanning Laser Anemometry: a technique capable of mapping the flowfield in a plane has been developed. Keywords: Unsteady flow, Separated flow, Flow control, Instrumentation. (aw)

Descriptors :   *BOUNDARY LAYER, *THREE DIMENSIONAL FLOW, *TURBULENT FLOW, *UNSTEADY FLOW, AIRFOILS, AXISYMMETRIC, BODIES, CONTROL, COUPLING(INTERACTION), FLOW, FLOW FIELDS, FLOW SEPARATION, FRONT ENDS AND SURFACES, JUNCTIONS, LASER ANEMOMETERS, MANIPULATORS, OPTICAL SCANNING, PASSIVE SYSTEMS, PRODUCTION, TURBULENCE, TURBULENT BOUNDARY LAYER, WAVES, WING BODY CONFIGURATIONS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE