Computation of slat noise by a LES/LPCE hybrid method with Brinkman penalization

So Hyeon Lee, Jong Rok Kim, Youngmin Bae, Yong Woo Jo, Young J. Moon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The slat noise of three-element 30P30N airfoil in high-lift configuration is computed by a LES/LPCE hybrid method with Brinkman penalization. The three-dimensional turbulent flow at Rec=1.7×106 and M=0.17 is computed by incompressible large eddy simulation (LES), while acoustic field is calculated by the linearized perturbed compressible equations (LPCE) coupled with Brinkman penalization. An anisotropic permeability tensor is introduced in the momentum equations to impose a slip boundary condition at the impermeable boundaries. The result of present method with body-fitted Cartesian-like grids is validated with that of the conformal multi-block structured grids. Besides, flow structures in the slat cove region are investigated in relation to the noise generation, and finally the effect of porous trailing-edge is examined for reduction of slat noise.

Original languageEnglish
Title of host publication16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
Publication statusPublished - 2010
Event16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) - Stockholm, Sweden
Duration: 2010 Jun 72010 Jun 9

Publication series

Name16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)

Other

Other16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
CountrySweden
CityStockholm
Period10/6/710/6/9

ASJC Scopus subject areas

  • Aerospace Engineering
  • Acoustics and Ultrasonics

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  • Cite this

    Lee, S. H., Kim, J. R., Bae, Y., Jo, Y. W., & Moon, Y. J. (2010). Computation of slat noise by a LES/LPCE hybrid method with Brinkman penalization. In 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) [2010-3839] (16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)).