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The optimization method of wing ice shape regulation based on flight dynamics characteristics.

Pengfei Dou1, Zhe Li2, Zehong Dong1

  • 1Aviation Engineering School, Air Force Engineering University, Xi'an, 710038, China.

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Plasma actuators can optimize ice shapes on aircraft wings, improving flight dynamics and safety. A 0.15 ice width to chord ratio significantly enhances stability and maneuverability under icing conditions.

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Area of Science:

  • Aerospace Engineering
  • Fluid Dynamics
  • Plasma Physics

Background:

  • Aircraft icing degrades aerodynamic performance and compromises flight safety.
  • Plasma actuators offer a novel de-icing approach by altering ice formation.
  • Optimizing plasma-induced ice shapes is crucial for effective de-icing and flight control.

Purpose of the Study:

  • To investigate the impact of plasma-induced ice shape regulation on aircraft flight dynamics.
  • To determine the optimal ice shape parameters for improved aerodynamic characteristics under icing.
  • To develop a method for evaluating and optimizing plasma actuator configurations for de-icing.

Main Methods:

  • A swept wing scale model and simulated ice shapes based on experimental data were used.
  • Wind tunnel tests were conducted to obtain aerodynamic parameters for various icing conditions.
  • A six-degrees-of-freedom flight dynamics model was developed for simulation analysis.

Main Results:

  • Flight dynamics simulations showed significant improvements with regulated ice shapes compared to full icing.
  • Optimal flight dynamics characteristics were achieved when the ice width to mean aerodynamic chord ratio was 0.15.
  • The proposed evaluation method effectively compared and optimized plasma actuator arrangements.

Conclusions:

  • Plasma ice shape regulation can enhance aircraft trim, dynamic stability, and maneuverability.
  • A specific ice accretion geometry (0.15 width-to-chord ratio) offers the best flight dynamic improvements.
  • The developed method enables optimized plasma actuator deployment for safe and energy-efficient de-icing.