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Use of Simplified Flow Separation Criteria for Slotted Flap Preliminary Design
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English
Abstract
From experimental correlations of airfoil and flap pressure distributions, it is observed that flow separation is likely to occur when the canonical pressure recovery coefficient (Cpr) exceeds a critical value. A procedure is described for obtaining the Cpr parameter from modified inviscid analysis. The procedure has been applied to preliminary design studies of a new slotted flap to determine the influence of shape and location. Experiments are planned to evaluate the flap designed by this procedure.
Citation
Wentz, W., "Use of Simplified Flow Separation Criteria for Slotted Flap Preliminary Design," SAE Technical Paper 770481, 1977, https://doi.org/10.4271/770481.Also In
References
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- Beatty, T. D. Narramore, J. C. Inverse Method for the Design of Multi-Element High-Lift Systems, AIAA J. of A. 15 6 June 1976
- Wentz, W. H. Seetharam, H. C. Development of a Fowler Flap System for a High Performance General Aviation Airfoil NASA CR-2443 1974
- Wentz, W. H. Seetharam, H. C. Fiscko, K. A. Force and Pressure Tests on the GA(W)-1 Airfoil with a 20% Aileron and Pressure Tests with a 30% Fowler Flap WSU AR 76-1 1976
- Townsend, A. A. The Behavior of Separation of the Turbulent Boundary Layer J. Fluid Mech. 5 1 16 1959
- Hahn, M. Rubbert, P. E. Mahal, A. S. Evolution of Separation Criteria and Their Application to Separated Flow Analysis AFFDL-TR-72-145 1973
- Foster, D. N. Irwin, H. P. A. H. Williams, B. R. The Two-Dimensional Flow Around a Slotted Flap B. & M. 3681 1971 British Ministry of Defense, Aero. Res. Council