3D Serrated Trailing-Edge Noise Model
Published:Dec 29, 2025 16:53
•1 min read
•ArXiv
Analysis
This paper presents a semi-analytical model for predicting turbulent boundary layer trailing edge noise from serrated edges. The model leverages the Wiener-Hopf technique to account for 3D source and propagation effects, offering a significant speed-up compared to previous 3D models. This is important for efficient optimization of serration shapes in real-world applications like aircraft noise reduction.
Key Takeaways
- •Develops a 3D semi-analytical model for serrated trailing-edge noise.
- •Employs the Wiener-Hopf technique for accurate 3D effects.
- •Achieves a two-order-of-magnitude speed-up compared to previous 3D models.
- •Captures far-field decay and dipolar behavior.
- •Aims to enable efficient optimization of serration shapes.
Reference
“The model successfully captures the far-field 1/r decay in noise amplitudes and the correct dipolar behaviour at upstream angles.”