Numerical Study Of Viscous Effects On Acoustic Waves
A two-dimensional numerical simulation of acoustic waves in a closed rectangular acoustic chamber is completed. Numerical computations are performed by solving the two-dimensional, unsteady, viscous, non-linear Navier-Stokes system of equations. Finite difference methodology was used accurate to sec...
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| Language: | en |
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Penerbit UTM Press
2002
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| Online Access: | http://eprints.utm.my/1318/1/JT37A4.pdf http://eprints.utm.my/1318/ http://www.penerbit.utm.my/onlinejournal/37/A/JT37A4.pdf |
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| author | Mohd. Ghazali, Normah |
| author_facet | Mohd. Ghazali, Normah |
| author_sort | Mohd. Ghazali, Normah |
| building | UTM Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Malaysia |
| content_source | UTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | A two-dimensional numerical simulation of acoustic waves in a closed rectangular acoustic chamber is completed. Numerical computations are performed by solving the two-dimensional, unsteady, viscous, non-linear Navier-Stokes system of equations. Finite difference methodology was used accurate to second order both in time and space. No-slip, no through flow and zero heat flux are set boundary conditions. Acoustic waves are generated by a vibrating membrane or piston on one wall. Computations are completed for variation in viscosity of the fluid. Results of the temperature profiles seem to agree with analytical solutions for a standing wave in an enclosure and those obtained experimentally with low perturbation to mean pressure ratio. Temperature nodes and anti-nodes each was found to occur near walls and midway through the chamber respectively, results associated with a half wavelength standing wave. |
| format | Article |
| id | my.utm.eprints-1318 |
| institution | Universiti Teknologi Malaysia |
| language | en |
| publishDate | 2002 |
| publisher | Penerbit UTM Press |
| record_format | eprints |
| spelling | my.utm.eprints-13182017-11-01T04:17:43Z http://eprints.utm.my/1318/ Numerical Study Of Viscous Effects On Acoustic Waves Mohd. Ghazali, Normah TJ Mechanical engineering and machinery A two-dimensional numerical simulation of acoustic waves in a closed rectangular acoustic chamber is completed. Numerical computations are performed by solving the two-dimensional, unsteady, viscous, non-linear Navier-Stokes system of equations. Finite difference methodology was used accurate to second order both in time and space. No-slip, no through flow and zero heat flux are set boundary conditions. Acoustic waves are generated by a vibrating membrane or piston on one wall. Computations are completed for variation in viscosity of the fluid. Results of the temperature profiles seem to agree with analytical solutions for a standing wave in an enclosure and those obtained experimentally with low perturbation to mean pressure ratio. Temperature nodes and anti-nodes each was found to occur near walls and midway through the chamber respectively, results associated with a half wavelength standing wave. Penerbit UTM Press 2002-12 Article PeerReviewed application/pdf en http://eprints.utm.my/1318/1/JT37A4.pdf Mohd. Ghazali, Normah (2002) Numerical Study Of Viscous Effects On Acoustic Waves. Jurnal Teknologi C (37A). pp. 47-54. ISSN 0127-9696 http://www.penerbit.utm.my/onlinejournal/37/A/JT37A4.pdf |
| spellingShingle | TJ Mechanical engineering and machinery Mohd. Ghazali, Normah Numerical Study Of Viscous Effects On Acoustic Waves |
| title | Numerical Study Of Viscous Effects On Acoustic Waves |
| title_full | Numerical Study Of Viscous Effects On Acoustic Waves |
| title_fullStr | Numerical Study Of Viscous Effects On Acoustic Waves |
| title_full_unstemmed | Numerical Study Of Viscous Effects On Acoustic Waves |
| title_short | Numerical Study Of Viscous Effects On Acoustic Waves |
| title_sort | numerical study of viscous effects on acoustic waves |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.utm.my/1318/1/JT37A4.pdf http://eprints.utm.my/1318/ http://www.penerbit.utm.my/onlinejournal/37/A/JT37A4.pdf |
| url_provider | http://eprints.utm.my/ |