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 language | English |
|---|---|
| Title of host publication | 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) |
| Publication status | Published - 2010 Dec 6 |
| Event | 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) - Stockholm, Sweden Duration: 2010 Jun 7 → 2010 Jun 9 |
Other
| Other | 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) |
|---|---|
| Country | Sweden |
| City | Stockholm |
| Period | 10/6/7 → 10/6/9 |
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ASJC Scopus subject areas
- Aerospace Engineering
- Acoustics and Ultrasonics
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Brinkman penalization method for computation of acoustic scattering from complex geometry
AU - Bae, Youngmin
AU - Moon, Young June
PY - 2010/12/6
Y1 - 2010/12/6
N2 - 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).
AB - 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).
UR - http://www.scopus.com/inward/record.url?scp=78649557118&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649557118&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78649557118
SN - 9781600867446
BT - 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
ER -