An experimental investigation of a separated boundary layer flow has been attempted which has been created by perturbing a flat plate flow with a favorable pressure gradient immediately followed by an adverse pressure gradient. The aim of the research program is possible control of flow separation by means of free stream turbulence. The flow is configured in a large-scale low speed wind tunnel where measurements of turbulence can be obtained with high spatial and temporal resolution. A model has been designed by using CFD analysis. Mean wall pressure and vorticity flux measurements are reported in this paper. Twelve experiments with three different mesh size grids at three different Reynolds numbers have been carried out. Three bulk flow parameters seem to characterize the flow: The Reynolds number of the boundary layer, Re+, the Reynolds number of the flow through the grid, ReM, and the solidity of the grid. It was found that the pressure coefficient depends weakly on the solidity of the grids. Vorticity flux also depends on the grid used to generate free stream turbulence. The location of maximum or minimum vorticity flux moves upstream at higher ReM.
Skip Nav Destination
ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
Experimental Investigation of Free Stream Turbulence Effects on Flow Separation Available to Purchase
Mahmoud Ardebili,
Mahmoud Ardebili
The City College of CUNY, New York, NY
Search for other works by this author on:
Yiannis Andreopoulos
Yiannis Andreopoulos
The City College of CUNY, New York, NY
Search for other works by this author on:
Mahmoud Ardebili
The City College of CUNY, New York, NY
Yiannis Andreopoulos
The City College of CUNY, New York, NY
Paper No:
FEDSM2003-45085, pp. 841-847; 7 pages
Published Online:
February 4, 2009
Citation
Ardebili, M, & Andreopoulos, Y. "Experimental Investigation of Free Stream Turbulence Effects on Flow Separation." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 841-847. ASME. https://doi.org/10.1115/FEDSM2003-45085
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Skin Friction Measurements of Transition in High Reynolds Number, Adverse Pressure Gradient Flow
J. Turbomach (February,2020)
Design of a Low-Turbulence, Low-Pressure Wind-Tunnel for Micro-Aerodynamics
J. Fluids Eng (September,2006)
Calculation of High-Lift Cascades in Low Pressure Turbine Conditions Using a Three-Equation Model
J. Turbomach (July,2011)
Related Chapters
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Introduction
Design and Analysis of Centrifugal Compressors
Boundary Layer Analysis
Centrifugal Compressors: A Strategy for Aerodynamic Design and Analysis