Brinkman penalization method for computation of acoustic scattering from complex geometry

Youngmin Bae, Young June Moon

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

3 Citations (Scopus)

Abstract

In this study, Brinkman penalization method (BPM) is extended for prediction of acoustic scattering from complex geometries. The main idea of the BPM is to model the solid obstacle as a porous material with zero porosity and permeability. With the aim of increasing the spatial accuracy at the immersed boundaries, computation is carried out on the boundary-fitted Cartesian-like grid with a high-order compact scheme combined with one-side differencing/filtering technique at the boundaries, while a slip boundary condition at the wall is imposed by introducing the 'anisotropic' penalization terms to the momentum equations. Several test cases are considered to demonstrate the accuracy, robustness and feasibility of the BPM. Numerical results are in excellent agreement with the analytic solutions for single and two cylinder scattering problems. The present BPM is then used to solve the acoustic scattering from a three-element high-lift wing (30P30N model).

Original languageEnglish
Title of host publication16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
Publication statusPublished - 2010 Dec 6
Event16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) - Stockholm, Sweden
Duration: 2010 Jun 72010 Jun 9

Other

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

Fingerprint

acoustic scattering
Acoustics
Scattering
Geometry
geometry
porous materials
wings
Porous materials
Momentum
permeability
slip
Porosity
grids
Boundary conditions
boundary conditions
porosity
momentum
predictions
scattering

ASJC Scopus subject areas

  • Aerospace Engineering
  • Acoustics and Ultrasonics

Cite this

Bae, Y., & Moon, Y. J. (2010). Brinkman penalization method for computation of acoustic scattering from complex geometry. In 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) [2010-3939]

Brinkman penalization method for computation of acoustic scattering from complex geometry. / Bae, Youngmin; Moon, Young June.

16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference). 2010. 2010-3939.

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

Bae, Y & Moon, YJ 2010, Brinkman penalization method for computation of acoustic scattering from complex geometry. in 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)., 2010-3939, 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference), Stockholm, Sweden, 10/6/7.
Bae Y, Moon YJ. Brinkman penalization method for computation of acoustic scattering from complex geometry. In 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference). 2010. 2010-3939
Bae, Youngmin ; Moon, Young June. / Brinkman penalization method for computation of acoustic scattering from complex geometry. 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference). 2010.
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