Active Control of Complex Weapons Bay Oscillations

Period of Performance: 07/16/1999 - 07/16/2000

$100K

Phase 1 STTR

Recipient Firm

Combustion Research & Flow Technology
6210 Keller's Church Road Array
Pipersville, PA 18947
Principal Investigator

Research Institution

University of Mississippi
P.O. Box 1848
Coliseum Drive
University, MS 38677
Institution POC

Research Topics

Abstract

An innovative multi-disciplinary approach has been formulated for active control of flow induced oscillations in aircraft weapons bay. State-of-the-art Very Large Eddy Simulation (VLES) based multi-dimensional, unstructured mesh CFD analysis is combined with Proper Orthogonal Decomposition (POD) signal processing algorithms to construct a low-dimensional dynamics model of the dynamic non-linear acoustic/turbulent interactive environment in "real--world" weapons bay. The POD-based dynamics model is combined with feedback control algorithm to devise an effective means of active control of these flow interactions in real-time and permit rapid evaluation of candidate flow control concepts. The modeling activities of the Phase I program will be complemented by wind-tunnel testing during the Phase II. The experimental data will be used to validate the VLES predictions underlying the prototype active control dynamics model and calibrate the design tool. Wind-tunnel testing will also be conducted to provide physical demonstration of effective control strategies (comprised of sensors1 actuators and feedback algorithm) in a "real-world" like environment using realistic representation of weapons bay (with stores included).