Active Attenuation of a Trailing Vortex
Abstract
We propose a small effort (< 1 year) on an experimental investigation of physics-based attenuation of a trailing vortex. Trailing vortices have many adverse effects in both aeronautical and maritime applications, including increased drag, wake-hazard, vortex detection and noise.The proposed research builds on promising results from our prior ONR-funded study of instability-based control of a developing trailing vortex. In particular, we utilized linear stabilityanalysis to guide the design of an effective control scheme for a trailing vortex flow field aft of a NACA0012 half-wing at an angle of attack of 5 degrees and a chord-based Reynolds number Re= 1000. The effectiveness of this control technique was then demonstrated in high-fidelity direct numerical simulations. In this effort, we propose to implement the physics-based active controlsystem to excite the wake instabilities along the trailing edge of the wing surface in wind tunnel experiments over a range of flow conditions using a variety of flow control actuation schemes.The results from the experiments will validate our previous analysis
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 24, 2019
- Source ID
- N000141912077
Entities
People
- Louis N Cattafesta
Organizations
- Florida State University
- Office of Naval Research
- United States Navy