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Sand Discharge Simulation and Flow Path Optimization of a Particle Separator.

Zhou Du1,2, Yulin Ma1, Quanyong Xu2

  • 1School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China.

Entropy (Basel, Switzerland)
|January 21, 2023
PubMed
Summary

Numerical simulations optimized helicopter engine particle separators. Modifying shroud material and dual protection improved sand removal efficiency for coarse Arizona road dust and MIL-E-5007C specifications.

Keywords:
boundary conditionsnumerical simulationparticle separatorseparation efficiencystructure optimization

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Area of Science:

  • Aerospace Engineering
  • Computational Fluid Dynamics
  • Particle Separation Technology

Background:

  • Helicopter engines are susceptible to damage from airborne particles.
  • Efficient particle separation is crucial for engine longevity and performance.
  • Existing particle separator designs require optimization for enhanced efficiency.

Purpose of the Study:

  • To optimize the particle removal efficiency of helicopter engine particle separators.
  • To evaluate the impact of boundary conditions on simulation accuracy.
  • To investigate design modifications for improved separation performance.

Main Methods:

  • Numerical simulations were employed to model particle separator performance.
  • Two distinct boundary conditions (total pressure inlet, mass flow outlet) were simulated.
  • Modifications included altering shroud material and implementing dual protection configurations.

Main Results:

  • The total pressure inlet and mass flow outlet boundary conditions closely matched experimental data.
  • Modifying shroud material increased separation efficiencies to 93.3% (AC-Coarse) and 97.6% (C-Spec).
  • Dual protection configurations achieved separation efficiencies of 91.7% (AC-Coarse) and 97.7% (C-Spec).

Conclusions:

  • Numerical simulation is an effective tool for optimizing particle separator designs.
  • Shroud material modification and dual protection are viable strategies for enhancing particle separation.
  • Optimized designs significantly improve the removal of specific airborne contaminants like AC-Coarse and C-Spec dust.