Numerical method for modeling of acoustic waves propagation
In this paper, numerical results of modeling of acoustic waves propagation are presented. For calculation of the acoustic fluctuations, a solution of the full non-linear Euler equation is used. The Euler equations are solved with the use of a numerical scheme of third-order accuracy in space and tim...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2013-11-01
|
| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/255 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849720492134498304 |
|---|---|
| author | Sławomir DYKAS Włodzimierz WRÓBLEWSKI Sebastian RULIK Tadeusz CHMIELNIAK |
| author_facet | Sławomir DYKAS Włodzimierz WRÓBLEWSKI Sebastian RULIK Tadeusz CHMIELNIAK |
| author_sort | Sławomir DYKAS |
| collection | DOAJ |
| description | In this paper, numerical results of modeling of acoustic waves propagation are presented. For calculation of the acoustic fluctuations, a solution of the full non-linear Euler equation is used. The Euler equations are solved with the use of a numerical scheme of third-order accuracy in space and time. The paper shows a validation process of the described method. This method is suitable also for an aerodynamic noise assessment on the basis of unsteady mean flow field data obtained from a CFD calculations. In such case this method is called a hybrid CFD/CAA method. The proposed method is numerically decoupled with CFD solution, therefore the information about the mean unsteady flow field can be obtained using an arbitrary CFD method (solver). The accuracy of the acoustic field assessment depends on the quality of the CFD solutions. This decomposition reduces considerably the computational cost in comparison with direct noise calculations.
The presented Euler acoustic postprocessor (EAP) has been used for modeling of the acoustic waves propagation in a cavity and in the flow field around a cylinder and an aerodynamic profile. |
| format | Article |
| id | doaj-art-e6b279619cb44b7c8206d34d9c25cb40 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-11-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-e6b279619cb44b7c8206d34d9c25cb402025-08-20T03:11:54ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-11-01351Numerical method for modeling of acoustic waves propagationSławomir DYKAS0Włodzimierz WRÓBLEWSKI1Sebastian RULIK2Tadeusz CHMIELNIAK3Silesian University of Technology, Institute of Power Engineering and TurbomachinerySilesian University of Technology, Institute of Power Engineering and TurbomachinerySilesian University of Technology, Institute of Power Engineering and TurbomachinerySilesian University of Technology, Institute of Power Engineering and TurbomachineryIn this paper, numerical results of modeling of acoustic waves propagation are presented. For calculation of the acoustic fluctuations, a solution of the full non-linear Euler equation is used. The Euler equations are solved with the use of a numerical scheme of third-order accuracy in space and time. The paper shows a validation process of the described method. This method is suitable also for an aerodynamic noise assessment on the basis of unsteady mean flow field data obtained from a CFD calculations. In such case this method is called a hybrid CFD/CAA method. The proposed method is numerically decoupled with CFD solution, therefore the information about the mean unsteady flow field can be obtained using an arbitrary CFD method (solver). The accuracy of the acoustic field assessment depends on the quality of the CFD solutions. This decomposition reduces considerably the computational cost in comparison with direct noise calculations. The presented Euler acoustic postprocessor (EAP) has been used for modeling of the acoustic waves propagation in a cavity and in the flow field around a cylinder and an aerodynamic profile.https://acoustics.ippt.pan.pl/index.php/aa/article/view/255acoustic wavefluctuationaerodynamic noiseEuler equations |
| spellingShingle | Sławomir DYKAS Włodzimierz WRÓBLEWSKI Sebastian RULIK Tadeusz CHMIELNIAK Numerical method for modeling of acoustic waves propagation Archives of Acoustics acoustic wave fluctuation aerodynamic noise Euler equations |
| title | Numerical method for modeling of acoustic waves propagation |
| title_full | Numerical method for modeling of acoustic waves propagation |
| title_fullStr | Numerical method for modeling of acoustic waves propagation |
| title_full_unstemmed | Numerical method for modeling of acoustic waves propagation |
| title_short | Numerical method for modeling of acoustic waves propagation |
| title_sort | numerical method for modeling of acoustic waves propagation |
| topic | acoustic wave fluctuation aerodynamic noise Euler equations |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/255 |
| work_keys_str_mv | AT sławomirdykas numericalmethodformodelingofacousticwavespropagation AT włodzimierzwroblewski numericalmethodformodelingofacousticwavespropagation AT sebastianrulik numericalmethodformodelingofacousticwavespropagation AT tadeuszchmielniak numericalmethodformodelingofacousticwavespropagation |