Experimental Observations of Transient Flows in Separation Control Using a Plasma Actuator
نویسندگان
چکیده
This paper presents the experimental results of separation and reattachment transient flow processes over a NACA0015 airfoil wing when using plasma actuator for control. In addition, it addresses behavior in control device is activated or deactivated, providing insights future feedback-based active approach offers benefit enhanced aerodynamic capabilities. The experiments were conducted at Reynolds number 66,000 an angle attack 13 degrees leading-edge without was installed on leading edge wing, with voltage 8 kV, base frequency 30 kHz, burst frequencies ranging from 100 Hz to 600 Hz. Particle image velocimetry employed field velocity measurements, surface pressure data obtained eight piezoelectric sensors. first proper orthogonal decomposition mode focus this quantitatively discussed. reveal details about such as their structures evolution time. It concluded that time asymmetry between could be leveraged further improvements efficiency actuators.
منابع مشابه
experimental investigation of active flow control for changing stall angle of a naca0012 airfoil, using plasma-actuator
active flow control has great importance in design of flying objects in general and control flaps in particular. using dielectric barrier discharge as plasma actuators over control flaps can cause a change in position of separation point or can eliminate it. this new flow control device produces a body force that causes generating a micro wall jet. the present study aims to investigate experime...
متن کاملExperimental Hysteresis Identification and Micro-position Control of a Shape-Memory-Alloy Rod Actuator
In order to exhaustively exploit the high-level capabilities of shape memory alloys (SMAs), they must be applied in control systems applications. However, because of their hysteretic inherent, dilatory response, and nonlinear behavior, scientists are thwarted in their attempt to design controllers for actuators of such kind. The current study aims at developing a micro-position control system ...
متن کاملStudy of Parameters Affecting Separation Bubble Size in High Speed Flows using k-ω Turbulence Model
Shock waves generated at different parts of vehicle interact with the boundary layer over the surface at high Mach flows. The adverse pressure gradient across strong shock wave causes the flow to separate and peak loads are generated at separation and reattachment points. The size of separation bubble in the shock boundary layer interaction flows depends on various parameters. Reynolds-averaged...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Actuators
سال: 2023
ISSN: ['2076-0825']
DOI: https://doi.org/10.3390/act12060218