Compressor Control

1
Compressor Control
James Armor, Manuj Dhingra, Joseph Gillman,
Vishwas Iyengar Yi Liu, Yedidia Neumeier, J.V.R
Prasad, L. Sankar School of Aerospace
Engineering Georgia Institute of
Technology Jvr.prasad_at_ae.gatech.edu
CFD Analysis of Compressor Performance
Numerical Study of Circulation Control
Compressor Active Stall Control
Rotor 67 Performance Map
Georgia Tech Axial Compressor Rig
Stall Precursor Analysis

• Completed validation of the analysis through a
  component map generation for Rotors 67 and 37.
• Delivered the compressor analysis, with sample
  user input/output and sample grids, for
  adaptation to design methodologies
• Improved turn-around time 4 to 6 fold by
  parallelizing the analysis on OpenMP systems
  using 8 CPUs

Numerical Simulation Studies of Active Stall
Control
CFD Analysis of Nacelle and Center Bodies
Effect of Circulation Control on Flow Turning

• Completed a version of the analysis that can
  model flow through nacelles and center-bodies.
  The fan blades may be individually modeled, or
  represented as an actuator disk.
• Delivered the nacelle analysis, with sample user
  input/output and sample grids, for adaptation to
  design methodologies

• Implemented real-time auto-correlation algorithm
  on a portable system.
• Integrated the auto-correlation based active
  stall avoidance scheme with a full engine
  controller.
• Demonstrated active stall avoidance on a full
  engine during rapid transients.

• Completed the evaluation of the recirculation and
  circulation control concepts as a means of
  increasing the blade loading, and for achieving
  flow turning
• Applied our approach to a multi-stage compressor
  configuration