View in EDS

Acoustic radiation force exerted by progressive waves on subwavelength inhomogeneous scatterers.

Saved in:
Bibliographic Details
Title: Acoustic radiation force exerted by progressive waves on subwavelength inhomogeneous scatterers.
Authors: Gokani, Chirag A.1,2 (AUTHOR) chiragokani@utexas.edu, Jerome, Thomas S.1 (AUTHOR), Haberman, Michael R.1,2 (AUTHOR), Hamilton, Mark F.1,2 (AUTHOR)
Source: Journal of the Acoustical Society of America. Apr2026, Vol. 159 Issue 4, p3030-3047. 18p.
Subjects: Acoustic radiation force, Born approximation, Scattering (Physics), Traveling waves (Physics), Sound wave scattering
Abstract: The acoustic radiation force exerted by plane progressive waves with wavenumber k on a scatterer of characteristic size a is calculated in the Born approximation using Westervelt's far-field integral [J. Acoust. Soc. Am. 29, 26–29 (1957), Eq. (2)]. In the subwavelength limit k a ≪ 1 of the Born approximation, closed-form analytical expressions for the radiation force are obtained in terms of acoustic polarizabilities, which represent the response of the scatterer to dipole order. For subwavelength scatterers whose relative compressibility and density are even functions about their centroid, Gor'kov's O [ (k a) 4 ] force [Sov. Phys. Dokl. 6, 773–775 (1962), Eq. (10)] is recovered, whereas the radiation force on scatterers characterized by odd distributions is O [ (k a) 6 ]. Radiation forces on homogeneous and inhomogeneous spheres and cubes are considered as examples, for which the analytical expressions agree with solutions based on spherical wave expansions and Fourier transforms for k a ≲ 0.8. The present work complements the volume integral obtained by Jerome and Hamilton [J. Acoust. Soc. Am. 150, 3417–3427 (2021), Eq. (16)] for the radiation force exerted by standing waves in the subwavelength limit of the Born approximation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics 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: 193402352
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Acoustic radiation force exerted by progressive waves on subwavelength inhomogeneous scatterers.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Gokani%2C+Chirag+A%2E%22">Gokani, Chirag A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> chiragokani@utexas.edu</i><br /><searchLink fieldCode="AR" term="%22Jerome%2C+Thomas+S%2E%22">Jerome, Thomas S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Haberman%2C+Michael+R%2E%22">Haberman, Michael R.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hamilton%2C+Mark+F%2E%22">Hamilton, Mark F.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Acoustical+Society+of+America%22">Journal of the Acoustical Society of America</searchLink>. Apr2026, Vol. 159 Issue 4, p3030-3047. 18p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Acoustic+radiation+force%22">Acoustic radiation force</searchLink><br /><searchLink fieldCode="DE" term="%22Born+approximation%22">Born approximation</searchLink><br /><searchLink fieldCode="DE" term="%22Scattering+%28Physics%29%22">Scattering (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Traveling+waves+%28Physics%29%22">Traveling waves (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Sound+wave+scattering%22">Sound wave scattering</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The acoustic radiation force exerted by plane progressive waves with wavenumber k on a scatterer of characteristic size a is calculated in the Born approximation using Westervelt's far-field integral [J. Acoust. Soc. Am. 29, 26–29 (1957), Eq. (2)]. In the subwavelength limit k a ≪ 1 of the Born approximation, closed-form analytical expressions for the radiation force are obtained in terms of acoustic polarizabilities, which represent the response of the scatterer to dipole order. For subwavelength scatterers whose relative compressibility and density are even functions about their centroid, Gor'kov's O [ (k a) 4 ] force [Sov. Phys. Dokl. 6, 773–775 (1962), Eq. (10)] is recovered, whereas the radiation force on scatterers characterized by odd distributions is O [ (k a) 6 ]. Radiation forces on homogeneous and inhomogeneous spheres and cubes are considered as examples, for which the analytical expressions agree with solutions based on spherical wave expansions and Fourier transforms for k a ≲ 0.8. The present work complements the volume integral obtained by Jerome and Hamilton [J. Acoust. Soc. Am. 150, 3417–3427 (2021), Eq. (16)] for the radiation force exerted by standing waves in the subwavelength limit of the Born approximation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics 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=193402352
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1121/10.0043002
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 3030
    Subjects:
      – SubjectFull: Acoustic radiation force
        Type: general
      – SubjectFull: Born approximation
        Type: general
      – SubjectFull: Scattering (Physics)
        Type: general
      – SubjectFull: Traveling waves (Physics)
        Type: general
      – SubjectFull: Sound wave scattering
        Type: general
    Titles:
      – TitleFull: Acoustic radiation force exerted by progressive waves on subwavelength inhomogeneous scatterers.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Gokani, Chirag A.
      – PersonEntity:
          Name:
            NameFull: Jerome, Thomas S.
      – PersonEntity:
          Name:
            NameFull: Haberman, Michael R.
      – PersonEntity:
          Name:
            NameFull: Hamilton, Mark F.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 00014966
          Numbering:
            – Type: volume
              Value: 159
            – Type: issue
              Value: 4
          Titles:
            – TitleFull: Journal of the Acoustical Society of America
              Type: main
ResultId 1