Date of Award
12-2015
Access Type
Thesis - Open Access
Degree Name
Master of Science in Aerospace Engineering
Department
Graduate Studies
Committee Chair
Dr. Vladimir Golubev
First Committee Member
Dr. Reda Mankbadi
Second Committee Member
Dr. Crystal Pasiliao
Abstract
The current study conducts numerical simulations to assess the possibility of employing Synthetic Jet Actuators (SJAs) as active noise control devices for reduction of airfoil acoustic radiation. High-accuracy numerical efforts employ a sixth-order accurate Navier-Strokes solver implementing a low-pass filtering of poorly resolved high-frequency solution content to retain numerical accuracy and stability over the range of transitional flow regimes. In the adopted numerical procedure, the actuator is modeled without its resonator cavity through imposing a simple fluctuating-velocity boundary condition at the bottom orifice of the actuator. The orifice cavity with the properly defined boundary condition is embedded into the airfoil surface for conducting high-accuracy viscous analysis of SJA-based active noise control. The effects of SJA location and actuation frequency on airfoil sound radiation are examined for uniform upstream flow conditions.
Scholarly Commons Citation
Sansone, Marco, "Numerical Study of Synthetic-Jet Actuation Effect on Airfoil Trailing Edge Noise" (2015). Doctoral Dissertations and Master's Theses. 243.
https://commons.erau.edu/edt/243
