Acoustic streaming induced by the non-periodic sound in a viscous medium
Instantaneous radiation force of acoustic streaming in a thermoviscous fluid is the subject of investigation. Dynamic equation governing the velocity of acoustic streaming is a result of splitting of the conservative differential equations in partial derivatives basing on the features of all poss...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1385 |
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| author | Anna Perelomova |
| author_facet | Anna Perelomova |
| author_sort | Anna Perelomova |
| collection | DOAJ |
| description | Instantaneous radiation force of acoustic streaming in a thermoviscous fluid is the subject
of investigation. Dynamic equation governing the velocity of acoustic streaming is a result of
splitting of the conservative differential equations in partial derivatives basing on the features
of all possible types of a fluid motion. The procedure of deriving does not need averaging over
sound period. It is shown that the radiation force consists of three parts, one corresponding
to the classic result (while averaged over sound period), the second being a small negative
term caused by diffraction, and the third one. This last term equals exactly zero for periodic
sound (after averaging) and differs from zero for other types of sound. Sound itself must
satisfy the well-known Khokhlov–Zabolotskaya–Kuznetsov equation describing the weakly
diffracting nonlinear acoustic beam propagating over viscous thermconducting fluid. The parts
of radiation acoustic force, relating to the sound non-periodicity and diffraction, are discussed
and illustrated. |
| format | Article |
| id | doaj-art-13c19b5f9150447687f967fb38433df6 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-13c19b5f9150447687f967fb38433df62025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-01-01324(S)Acoustic streaming induced by the non-periodic sound in a viscous mediumAnna Perelomova0Gdańsk University of Technology, Faculty of Applied Physics and Mathematics, G. Narutowicza 11/12, 80-952 GdańskInstantaneous radiation force of acoustic streaming in a thermoviscous fluid is the subject of investigation. Dynamic equation governing the velocity of acoustic streaming is a result of splitting of the conservative differential equations in partial derivatives basing on the features of all possible types of a fluid motion. The procedure of deriving does not need averaging over sound period. It is shown that the radiation force consists of three parts, one corresponding to the classic result (while averaged over sound period), the second being a small negative term caused by diffraction, and the third one. This last term equals exactly zero for periodic sound (after averaging) and differs from zero for other types of sound. Sound itself must satisfy the well-known Khokhlov–Zabolotskaya–Kuznetsov equation describing the weakly diffracting nonlinear acoustic beam propagating over viscous thermconducting fluid. The parts of radiation acoustic force, relating to the sound non-periodicity and diffraction, are discussed and illustrated.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1385acoustic streamingacoustic radiation forcenonlinear hydrodynamics. |
| spellingShingle | Anna Perelomova Acoustic streaming induced by the non-periodic sound in a viscous medium Archives of Acoustics acoustic streaming acoustic radiation force nonlinear hydrodynamics. |
| title | Acoustic streaming induced by the non-periodic sound in a viscous medium |
| title_full | Acoustic streaming induced by the non-periodic sound in a viscous medium |
| title_fullStr | Acoustic streaming induced by the non-periodic sound in a viscous medium |
| title_full_unstemmed | Acoustic streaming induced by the non-periodic sound in a viscous medium |
| title_short | Acoustic streaming induced by the non-periodic sound in a viscous medium |
| title_sort | acoustic streaming induced by the non periodic sound in a viscous medium |
| topic | acoustic streaming acoustic radiation force nonlinear hydrodynamics. |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1385 |
| work_keys_str_mv | AT annaperelomova acousticstreaminginducedbythenonperiodicsoundinaviscousmedium |