Date of Award
2010
Publication Type
Master Thesis
Degree Name
M.A.Sc.
Department
Mechanical, Automotive, and Materials Engineering
Keywords
Engineering, Aerospace.
Supervisor
Ting, S-K. David (Mechanical, Automotive and Materials Engineering)
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
In the thesis, the performance of an asymmetric, high-lift S1223 airfoil has been investigated at Reynolds numbers 55,000, 75,000, and 100,000. The airfoil was tested in a quasi-isotropic turbulent flow generated using orificed perforated plates. The independent effects of the turbulence intensity were examined at a constant integral length scale. The stall of the airfoil is delayed by increasing the turbulence intensity. The wake of the airfoil becomes narrower and the strength of the shedding vortices was reduced, which indicates a suppression of the boundary layer of the airfoil. The independent roles of integral length scale were examined at turbulence intensity of 4.1% and 9.5%. At Tu=4.1% with increasing the integral length scale, the stall of the airfoil is delayed, and wider wakes have been observed at the stall region. At Tu=9.5%, the effects of turbulence scale become subtle.
Recommended Citation
Cao, Ning, "Effects of turbulence intensity and integral length scale on an asymmetric airfoil at low Reynolds numbers" (2010). Electronic Theses and Dissertations. 177.
https://scholar.uwindsor.ca/etd/177