Abstract
A novel con.guration has been devised to study the flow physics of separated airfoil flows. The configuration allows us to prescribe the size and extent of the separation zone. A systematic variation of key separation parameters then allows us to precisely delineate the processes that govern resonant-mode interactions and transition in these flows. Numerical simulations of this configuration indicate the presence of three distinct characteristic time scales associated with the shear layer, the separation zone and the vortex shedding in the wake.
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REFERENCES
Chang, P. K., Control of Separation, McGraw-Hill, New York, 1976.
Glezer, A. and Amitay, M., “Synthetic Jets,” Ann. Rev. Fluid Mech., 34:503-29, 2002
Ghias, R., Mittal, R., and Lund, T., S., “A Non-Body Conformal Grid Method for Simulation of Compressible Flows with Complex Immersed Boundaries,” AIAA Paper 2004-0080, 2004.
Glezer, A., Amitay, M., and Homohan A. M., “Aspects of Low-and High-Frequency Aerodynamic Flow Control,” AIAA Paper 2003-0533, 2003.
Mittal, R. and Rampunggoon, P., “On the Virtual Aero-Shaping Effect of Synthetic Jets,” Phys. Fluids, vol. 14, no. 4., pp. 1533-1536, 2002.
Roshko, A. “On the Development of Turbulent Wakes from Vortex Streets,” NACA Report 1191, 1954.
Na, Y. and Moin, P., “Direct Numerical Simulation of a Separated Turbulent Boundary Layer,” J. Fluid Mech., vol. 370, pp. 175-201, 1998.
Seifert, A., Darabi, A. and Wygnanski, I., “Delay of Airfoil Stall by Periodic Excitation,“ J. Aircraft, vol. 33, pp. 691-698, 1996.
Seifert, A. and Pack, L. G., “Oscillatory Control of Separation at High Reynolds Numbers,” AIAA J., vol. 37, no. 9, pp. 1062-1071, Sep. 1999
Wu, J. -Z., Lu, X. -Y., Denny, A. G., Fan, M., and Wu, J. -M. “Post-Stall Flow Control on an Airfoil by Local Unsteady Forcing,” J. Fluid Mech., vol. 371, pp. 21-58, 1998.
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Mittal, R., Kotapati, R.B. (2006). RESONANT MODE INTERACTION IN A CANONICAL SEPARATED FLOW. In: Govindarajan, R. (eds) IUTAM Symposium on Laminar-Turbulent Transition. Fluid Mechanics and Its Applications, vol 78. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4159-4_48
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DOI: https://doi.org/10.1007/1-4020-4159-4_48
Publisher Name: Springer, Dordrecht
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