Outputs (52)

Noise control of dipole source by using micro-perforated panel housing (2015)
Journal Article
Xi, Q., Choy, Y. S., Cheng, L., & Tang, S. K. (2016). Noise control of dipole source by using micro-perforated panel housing. Journal of Sound and Vibration, 362, 39-55. https://doi.org/10.1016/j.jsv.2015.09.047

Mitigating low-frequency noise in a small ducted fan system such as hairdryer is still a technical challenge. Traditional duct lining with porous materials work ineffectively due to the limitation of its thickness and length of small domestic product... Read More about Noise control of dipole source by using micro-perforated panel housing.

Urban soundscape of recreational area in high population area (2014)
Journal Article
Choy, Y. S., Chau, C. K., Tsui, W. K., & Tang, S. K. (2014). Urban soundscape of recreational area in high population area. Acta Acustica united with Acustica, 100(6), 1044-1055. https://doi.org/10.3813/AAA.918784

Urban landscape or parks for recreational purposes are important components in urban area in Hong Kong but traffic noise can seriously affect their usability. To evaluate their usability practically, the Soundscape of recreational areas has to be exa... Read More about Urban soundscape of recreational area in high population area.

Full scale field study of sound transmission across plenum windows (2014)
Journal Article
Tong, Y. G., Tang, S. K., Kang, J., Fung, A., & Yeung, M. K. (2015). Full scale field study of sound transmission across plenum windows. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 89, 244-253. https://doi.org/10.1016/j.apacoust.2014.10.003

A full scale field measurement of the acoustical insertion loss of plenum windows was carried out in the present investigation. Two identical mock-up test rooms with dimensions the same as those commonly adopted for Hong Kong public housing were buil... Read More about Full scale field study of sound transmission across plenum windows.

Insertion losses of balconies on a building façade and the underlying wave interactions (2014)
Journal Article
Tang, S. K., Ho, C. Y., & Tso, T. Y. (2014). Insertion losses of balconies on a building façade and the underlying wave interactions. The Journal of the Acoustical Society of America, 136(1), 213-225. https://doi.org/10.1121/1.4883379

This study used scale model experiments to investigate the insertion losses of balconies on a building façade in the presence of ground reflections. The experiments measured both A-weighted broad- and narrowband insertion loss spectra. The underlying... Read More about Insertion losses of balconies on a building façade and the underlying wave interactions.

Aeroacoustics of duct junction flows merging at different angles (2014)
Journal Article
Lam, G. C., Leung, R. C., & Tang, S. K. (2014). Aeroacoustics of duct junction flows merging at different angles. Journal of Sound and Vibration, 333(18), 4187-4202. https://doi.org/10.1016/j.jsv.2014.04.045

This paper reports an exploratory study of the aeroacoustics of a merging flow at a duct junction with the same width in all branches and different merging angles. The focus is put on the acoustic generation due to the flow unsteadiness. The study is... Read More about Aeroacoustics of duct junction flows merging at different angles.

Validation of CE/SE scheme in low mach number direct aeroacoustic simulation (2014)
Journal Article
Lam, G. C., Leung, R. C., Seid, K. H., & Tang, S. K. (2014). Validation of CE/SE scheme in low mach number direct aeroacoustic simulation. International Journal of Nonlinear Sciences and Numerical Simulation, 15(2), 157-169. https://doi.org/10.1515/ijnsns-2012-0118

The space-time conservation element and solution element (CE/SE) scheme has caught many attentionin aeroacoustic research community as an alternative numerical strategy for direct aeroacoustic simulation (DAS).As a result of its strict conversation o... Read More about Validation of CE/SE scheme in low mach number direct aeroacoustic simulation.

Neural network predictions of acoustical parameters in multi-purpose performance halls (2013)
Journal Article
Cheung, L. Y., & Tang, S. K. (2013). Neural network predictions of acoustical parameters in multi-purpose performance halls. The Journal of the Acoustical Society of America, 134(3), 2049-2065. https://doi.org/10.1121/1.4817880

A detailed binaural sound measurement was carried out in two multi-purpose performance halls of different seating capacities and designs in Hong Kong in the present study. The effectiveness of using neural network in the predictions of the acoustical... Read More about Neural network predictions of acoustical parameters in multi-purpose performance halls.

Plenum window insertion loss in the presence of a line source - A scale model study (2013)
Journal Article
Tong, Y. G., & Tang, S. K. (2013). Plenum window insertion loss in the presence of a line source - A scale model study. The Journal of the Acoustical Society of America, 133(3), 1458-1467. https://doi.org/10.1121/1.4788996

The acoustical insertion losses of plenum windows installed on a building facade in the presence of a non-parallel line source are studied by using a 1:4 scaled down model in a semi-anechoic chamber in the present investigation. Two types of insertio... Read More about Plenum window insertion loss in the presence of a line source - A scale model study.

Aeroacoustics of T-junction merging flow (2013)
Journal Article
Lam, G. C., Leung, R. C., & Tang, S. K. (2013). Aeroacoustics of T-junction merging flow. The Journal of the Acoustical Society of America, 133(2), 697-708. https://doi.org/10.1121/1.4773351

This paper reports a numerical study of the aeroacoustics of merging flow at T-junction. The primary focus is to elucidate the acoustic generation by the flow unsteadiness. The study is conducted by performing direct aeroacoustic simulation approach,... Read More about Aeroacoustics of T-junction merging flow.

Narrow sidebranch arrays for low frequency duct noise control (2012)
Journal Article
Tang, S. K. (2012). Narrow sidebranch arrays for low frequency duct noise control. The Journal of the Acoustical Society of America, 132(5), 3086-3097. https://doi.org/10.1121/1.4756951

The present study investigates the sound transmission loss across a section of an infinitely long duct where one or more narrow sidebranch tubes are installed flushed with the duct wall. The finite-element method is used to compute the wave propagati... Read More about Narrow sidebranch arrays for low frequency duct noise control.