Control of Static and Dynamic Stall in a Wide Range of Mach Numbers by Plasma Actuators with Combined Energy/Momentum Action
Abstract
The objective of this proposal is to develop new nanosecond plasma actuation devices and explore the effectiveness of these actuators on providing enhanced control of dynamic stall. The goal is to establish a new capability that would provide robust control over a wide range of frequencies in flows that are relevant to rotorcraft aviation with only marginal penalties associated with weight and drag. Two major tasks are proposed. The first is development of the actuators and the second is the application of the actuator technologies to the static and dynamic stall problem. Nanosecond pulsed plasma devices (NS-DBD) are capable of depositing a significant amount of thermal and kinetic energy into the air. Several actuator configurations will be investigated and assessed for their effectiveness and efficiency in generating perturbations relevant to the second part of the work (discussed below). Both energy and momentum transfer mechanisms will be explored separately and together). The NS-DBD actuators will be utilized as a control mechanism for dynamic stall. Dynamic stall studies will be carried out in the newly upgraded Princeton Subsonic Variable Speed Plasma wind tunnel, development of which was supported by ARO DURIP funds (63477-EG-RIP). The tunnel modifications have been completed and testing is ready to begin. Experiments over a wide range of Mach numbers (0.2-0.5) and reduced frequencies will be conducted to assess the capability of the newly developed actuator to enhance dynamic stall performance.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 14, 2016
- Source ID
- W911NF1510236
Entities
People
- Richard B. Miles
Organizations
- Army Contracting Command
- Princeton University
- United States Army