Narasimha, Roddam and Kumar, Kishore S (1986) The lift on an airfoil in a turbulent boundary layer 11. Technical Report. National Aeronautical Laboratory, Bangalore, India.
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Abstract
This report is a continuation of an earlier study (Kumar13; and Narasimha 1986) on the lift and pitching moment experienced by an airfoil placed within a turbulent boundary layer. The mean velocity in the turbulent boundary layer is represented in this report by a composite profile including the wall and wake laws with a slope that vanishes at the edge of the boundary layer. Results with this composite profile agree qualitatively with those of the one-seventh power law; profile investigated earlier, the maximum difference quantitatively being 22% in the lift coefficient at a blade height of 0.66 boundary layer thickness 6, and 47% in the pitching moment at a blade height of 0.6 delta.
| Item Type: | Proj.Doc/Technical Report (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Composite profile;One-seventh power law profile;Shear;Lift |
| Subjects: | ENGINEERING > Fluid Mechanics and Thermodynamics AERONAUTICS > Aerodynamics |
| Division/Department: | Fluid Dynamics, Fluid Dynamics |
| Depositing User: | Mr. Ravikumar R |
| Date Deposited: | 25 Sep 2006 |
| Last Modified: | 24 May 2010 09:50 |
| URI: | http://nal-ir.nal.res.in/id/eprint/2799 |
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