Computational aeroacoustic analysis of trailing edge noise

Computational aeroacoustic analysis of trailing edge noise: A Direct Numerical Simulation using the Lattice Boltzmann Method

Rooks, J.J.W.

van Zuijlen, A.H. (mentor)

Aerospace Engineering

Aerodynamics

2016-08-17

To investigate the mechanisms of wing trailing edge noise the aeroacoustic sound generation by a NACA 0018 has been computed with direct numerical simulations using the Lattice Boltzmann Method. Noise from the straight trailing edge wing is compared with the sound generated by a sawtooth serrated wing, which reduces the noise emission according to literature. It was found that for low frequencies the trailing edge serrations reduce the noise significantly, but show a limited (negative) effect at high frequencies.

computational aeroacoustics
trailing edge noise
trailing edge serrations
Lattice Boltzmann method
noise reduction

http://resolver.tudelft.nl/uuid:d64b13d7-5473-4063-80c7-e5c49b8c3d04

Student theses

master thesis

(c) 2016 Rooks, J.J.W.