Computational Methods for Feedback Controllers for Aerodynamics Flow Applications
Abstract
Report developed under STTR contract for topic AF03-T007. This document represents the final report of a phase I STTR program between the USAF Academy Department of Aeronautics and Cobalt Solutions, LLC. The goal of the STTR is to develop a set of computational design tools for closed loop flow control. These tools need to cover the entire design cycle from plant characterization through control system development to testing of the control algorithms against truth models and finally experiments. The specific goal of the phase I was to demonstrate feasibility of the proposed approach by applying it to three challenging test cases: the circular cylinder, the "D" shaped cylinder, and the NACA 0015 airfoil. These three cases were chosen because of the differing approaches needed for each problem. Both cylinders need to be controlled by stabilizing the wake. The circular cylinder has variable separation points (depending on control input), while the "D" shaped cylinder has fixed separation. The airfoil may be controlled strictly be controlling the separation (i.e. eliminating it) . These cases were all treated in 2-D to demonstrate feasibility prior to attempting control in 3-D.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 29, 2004
- Accession Number
- ADA425212
Entities
People
- James R. Forsythe
- Kelly Cohen
- Stefan Siegel
- Thomas E. Mclaughlin
- William Z. Strang