Airfoil Trailing Edge Noise Generation and Its Surface Pressure Fluctuation

Wei Jun Zhu, Wen Zhong Shen

Research output: Contribution to journalJournal articlepeer-review

335 Downloads (Pure)

Abstract

In the present work, Large Eddy Simulation (LES) of turbulent flows over a NACA 0015 airfoil is performed. The purpose of such numerical study is to relate the aerodynamic surface pressure with the noise generation. The results from LES are validated against detailed surface pressure measurements where the time history pressure data are recorded by the surface pressure microphones. After the flow-field is stabilized, the generated noise from the airfoil Trailing Edge (TE) is predicted using the acoustic analogy solver, where the results from LES are the input. It is found that there is a strong relation between TE noise and the aerodynamic pressure. The results of power spectrum density show that the fluctuation of aerodynamic pressure is responsible for noise generation.
Original languageEnglish
JournalJournal of Power and Energy Engineering
Volume3
Pages (from-to)14-19
ISSN2327-588X
DOIs
Publication statusPublished - 2015

Keywords

  • Large Eddy Simulation
  • Trailing Edge Noise
  • Surface Pressure

Fingerprint

Dive into the research topics of 'Airfoil Trailing Edge Noise Generation and Its Surface Pressure Fluctuation'. Together they form a unique fingerprint.

Cite this