Study and Design of Golf Ball Like Dimpled Aircraft 2-D Wing and Effects on Aerodynamic Efficiency
This investigation initially focuses on the study of dimple effects on an airfoil. Application of the golf ball dimples on airfoils is predicted to be a good alternative for drag reduction as per the concept of flow separation for a golf ball. A NACA series airfoil is selected, and a comparative study of the boundary layer thickness is made between a dimpled and a smooth design. The mesh discretization is carried out holding the “Law of wall” true, for an accurate simulation of the boundary layer. The results are compared with the available experimental data. Calculations were performed to predict the optimized location and curvature of the dimple to achieve a change in the aerodynamic efficiency. A rumored application of a similar concept is possibly being applied on the Boeing 787-9 in the form of a hybrid laminar flow control. However, there are no reliable sources to confirm it.
KeywordsFlow separation Golf ball Dimples Airfoil Boundary layer Aerodynamic efficiency
- 1.Chear CK, Dol SS (2015) Vehicle aerodynamics: drag reduction by surface dimples. Int J Mech Aerosp Ind Mechatron Eng 9(1):202–205Google Scholar
- 5.Keith WD, Cokljat D (2008) A three-equation eddy-viscosity model for reynolds-averaged Navier–Stokes simulations of transitional flow. J Fluids Eng 130(12)Google Scholar
- 6.Di Pasquale D, Rona A, Garrett SJ (2009) A selective review of CFD transition models. In: 39th AIAA fluid dynamics conferenceGoogle Scholar
- 7.Vento JL (2011) Analysis of surface augmentation of airfoil sections via flow visualization techniques. California Polytechnic State University, San Luis Obispo, CA, 93405. http://digitalcommons.calpoly.edu/aerosp/38/
- 8.Anderson JD (2001) Fundamentals of aerodynamics. McGraw-Hill, BostonGoogle Scholar