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Justin Aholt
Missouri University of Science and Technology
Dept. of Mechanical and Aerospace Engineering
Dr. Fathi Finaish
Abstract
A parametric Computational Fluid Dynamics (CFD) study was conducted to examine the plausibility of a plasma actuator as a means of controlling a Laminar Separation Bubble (LSB) over an airfoil at low Reynolds numbers. In this study, the effects of altering the strength and location of a plasma actuator, modeled as a localized body force, on the size and location of the LSB and on the aerodynamic performance of the airfoil were observed. It was found that the body force, when properly located and with sufficient magnitude, could effectively eliminate the LSB. Additionally, it was found that by eliminating the LSB, the aerodynamic efficiency of the airfoil could be improved by over 60%. Thus, it was determined that plasma actuators may indeed be an effective measure for reducing or eliminating the negative effects associated with LSBs at low Reynolds numbers, making the technology an excellent candidate for future experimental research.
Justin Aholt is currently enrolled in the department of Mechanical and Aerospace Engineering at the Missouri University of Science and Technology. He will graduate with a Bachelors degree in Aerospace Engineering in May 2010 and a Master's degree in May 2011.
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