An effective absorbing boundary algorithm for acoustical wave propagator.
Saved in:
| Title: | An effective absorbing boundary algorithm for acoustical wave propagator. |
|---|---|
| Authors: | Lin Zhibin1 Iinzhibin@nju.org.cn, Lu Jing1, Xu Boling1 |
| Source: | Progress in Natural Science. Sep2007, Vol. 17 Issue 9, p1012-1017. 6p. 4 Graphs. |
| Subjects: | Algorithms, Electromagnetic waves, Electromagnetic theory, Wave packets, Chebyshev systems, Chebyshev polynomials |
| Abstract: | In this paper, Berenger's perfectly matched layer (PML) absorbing boundary condition for electromagnetic waves is introduced as the truncation area of the computational domain to absorb one-dimensional acoustic wave for the scheme of acoustical wave propagator (AWP). To guarantee the efficiency of the AWP algorithm, a regulated propagator matrix is derived in the PML medium. Numerical simulations of a Gaussian wave packet propagating in one-dimensional duct are carried out to illustrate the efficiency of the combination of PML and AWP. Compared with the traditional smoothing truncation windows technique of AWP, this scheme shows high computational accuracy in absorbing acoustic wave when the acoustical wave arrives at the computational edges. Optimal coefficients of the PML configurations are also discussed. [ABSTRACT FROM AUTHOR] |
| Copyright of Progress in Natural Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 28075929 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: An effective absorbing boundary algorithm for acoustical wave propagator. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lin+Zhibin%22">Lin Zhibin</searchLink><relatesTo>1</relatesTo><i> Iinzhibin@nju.org.cn</i><br /><searchLink fieldCode="AR" term="%22Lu+Jing%22">Lu Jing</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Xu+Boling%22">Xu Boling</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Natural+Science%22">Progress in Natural Science</searchLink>. Sep2007, Vol. 17 Issue 9, p1012-1017. 6p. 4 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+waves%22">Electromagnetic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+theory%22">Electromagnetic theory</searchLink><br /><searchLink fieldCode="DE" term="%22Wave+packets%22">Wave packets</searchLink><br /><searchLink fieldCode="DE" term="%22Chebyshev+systems%22">Chebyshev systems</searchLink><br /><searchLink fieldCode="DE" term="%22Chebyshev+polynomials%22">Chebyshev polynomials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this paper, Berenger's perfectly matched layer (PML) absorbing boundary condition for electromagnetic waves is introduced as the truncation area of the computational domain to absorb one-dimensional acoustic wave for the scheme of acoustical wave propagator (AWP). To guarantee the efficiency of the AWP algorithm, a regulated propagator matrix is derived in the PML medium. Numerical simulations of a Gaussian wave packet propagating in one-dimensional duct are carried out to illustrate the efficiency of the combination of PML and AWP. Compared with the traditional smoothing truncation windows technique of AWP, this scheme shows high computational accuracy in absorbing acoustic wave when the acoustical wave arrives at the computational edges. Optimal coefficients of the PML configurations are also discussed. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Natural Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=28075929 |
| RecordInfo | BibRecord: BibEntity: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 1012 Subjects: – SubjectFull: Algorithms Type: general – SubjectFull: Electromagnetic waves Type: general – SubjectFull: Electromagnetic theory Type: general – SubjectFull: Wave packets Type: general – SubjectFull: Chebyshev systems Type: general – SubjectFull: Chebyshev polynomials Type: general Titles: – TitleFull: An effective absorbing boundary algorithm for acoustical wave propagator. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lin Zhibin – PersonEntity: Name: NameFull: Lu Jing – PersonEntity: Name: NameFull: Xu Boling IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 10020071 Numbering: – Type: volume Value: 17 – Type: issue Value: 9 Titles: – TitleFull: Progress in Natural Science Type: main |
| ResultId | 1 |
