Publication: Experimental study of thermal performance of an acoustic liner
| datacite.subject.fos | oecd::Engineering and technology::Mechanical engineering | |
| dc.contributor.author | Nur Dahlia Shafiqah Binti Dolah | |
| dc.date.accessioned | 2026-01-21T07:15:44Z | |
| dc.date.available | 2026-01-21T07:15:44Z | |
| dc.date.issued | 2023-07-01 | |
| dc.description.abstract | Ice formation on aircraft surfaces has long been acknowledged as a potential threat to aerodynamics and flight mechanics, endangering flight safety. To address this issue, hot air jet impingement has been utilised for eliminating ice from critical regions such as the nacelle lip skin. However, experimental data on the thermal performance of the acoustic liner, a material commonly used for noise reduction techniques in proximity of the nacelle lip skin, is still lacking. Consequently, this study investigates the thermal efficacy of Acoustic Liner. In general, the study's results were consistent across all evaluated conditions. Ten average free stream velocities ranging from 0.6 m/s to 2.2 m/s and ten heat dissipations varying from 0.1686 W to 2.6765 W were examined. The Reynolds number recorded during the investigation ranges between 4800 and 15600. The corresponding temperature readings and velocities for this experiment were obtained using thermocouples, a data recorder, and an anemometer, with total systematic and random error uncertainties of 4.3684%. Graphs depicted the relationship between the overall convection heat transfer coefficient and the Reynolds number, the Nusselt Number and the Reynolds number, and the Nusselt Number multiplied by the Prandtl number and Reynolds number. As the Reynolds number increased, all graphs showed an increase. In conclusion, the acoustic liner demonstrates efficient thermal performance, making it a useful resource for reducing the formation of frost on the nacelle lip skin, where flows with a higher Reynolds number are found to enhance the thermal effectiveness of the acoustic liner. These findings contribute to a better comprehension of the performance of the acoustic liner as well as its use in preventing the formation of ice on aircraft surfaces. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/23491 | |
| dc.language.iso | en | |
| dc.title | Experimental study of thermal performance of an acoustic liner | |
| dc.type | Resource Types::text::report::research report | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |