System Identification of a Vortex Lattice Aerodynamic Model

By National Aeronautics and Space Administration

The state-space presentation of an aerodynamic vortex model is considered from a classical and system identification perspective. Using an aerodynamic vortex model as a numerical simulator of a wing tunnel experiment, both full state and limited state data or measurements are considered. Two possible approaches for system identification are presented and modal controllability and observability are also considered. The theory then is applied to the system identification of a flow over an aerodynamic delta wing and typical results are presented.Juang, Jer-Nan and Kholodar, Denis and Dowell, Earl H.Langley Research CenterSYSTEM IDENTIFICATION; VORTICES; AERODYNAMIC CHARACTERISTICS; DELTA WINGS; VORTEX LATTICE METHOD; UNSTEADY FLOW; CONTROLLABILITY; LIFT; ANGLE OF ATTACK; EIGENVALUES

• Format: Paperback
• Language: English
• ISBN: 1723765104
• ISBN13: 9781723765100
• Release Date: January 1
• Publisher: Independently Published
• Length: 40 Pages
• Weight: 0.26 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"