SUMMARY POINTS

• Future combustor demands for performance and behavior cannot be met with traditional design methods.
  • Passive control approach is based on design changes and often requires geometry modification by trial-and-error methods.
  • Active combustion control (ACC) has the potential of more effectively mitigating challenges associated with the future combustor requirements.
• ACC experiments have shown performance improvements in model combustors.
• Understanding of basic combustion and mixing processes is critical for proper application of active control.
  • Vortex-synchronized fuel injection yielded good dispersion of fuel droplets
• There exists a CRITICAL FUEL FLUX for maintaining the control authority.
  • Critical fuel flux decreases exponentially with finer atomization of fuel
  • Critical fuel flux decreases linearly with increasing inlet temperature

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