Outputs (14)

Airflow rates and breathlessness recovery from submaximal exercise in healthy adults: prospective, randomised, cross-over study (2023)
Journal Article
Brew, A., O'Beirne, S., Johnson, M. J., Ramsenthaler, C., Watson, P., Rubini, P. A., Fagan, M. J., Swan, F., & Simpson, A. (online). Airflow rates and breathlessness recovery from submaximal exercise in healthy adults: prospective, randomised, cross-over study. BMJ supportive & palliative care, https://doi.org/10.1136/spcare-2023-004309

Objectives: Facial airflow from a hand-held fan may reduce breathlessness severity and hasten postexertion recovery. Data from randomised controlled trials are limited and the optimal airflow speed remains unknown. We aimed to determine the effect of... Read More about Airflow rates and breathlessness recovery from submaximal exercise in healthy adults: prospective, randomised, cross-over study.

A porous media model for the numerical simulation of acoustic attenuation by perforated liners in the presence of grazing flows (2021)
Journal Article
Wang, J., Rubini, P., & Qin, Q. (2021). A porous media model for the numerical simulation of acoustic attenuation by perforated liners in the presence of grazing flows. Applied Sciences, 11(10), Article 4677. https://doi.org/10.3390/app11104677

In this paper, a novel model is proposed for the numerical simulation of noise-attenuating perforated liners. Effusion cooling liners offer the potential of being able to attenuate combustion instabilities in gas turbine engines. However, the acousti... Read More about A porous media model for the numerical simulation of acoustic attenuation by perforated liners in the presence of grazing flows.

A model to predict acoustic resonant frequencies of distributed Helmholtz resonators on gas turbine engines (2019)
Journal Article
Wang, J., Rubini, P., Qin, Q., & Houston, B. (2019). A model to predict acoustic resonant frequencies of distributed Helmholtz resonators on gas turbine engines. Applied Sciences, 9(7), Article 1419. https://doi.org/10.3390/app9071419

© 2019 by the authors. Helmholtz resonators, traditionally designed as a narrow neck backed by a cavity, are widely applied to attenuate combustion instabilities in gas turbine engines. The use of multiple small holes with an equivalent open area to... Read More about A model to predict acoustic resonant frequencies of distributed Helmholtz resonators on gas turbine engines.

Application of a porous media model for the acoustic damping of perforated plate absorbers (2017)
Journal Article
Wang, J., Rubini, P., & Qin, Q. (2017). Application of a porous media model for the acoustic damping of perforated plate absorbers. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 127, 324-335. https://doi.org/10.1016/j.apacoust.2017.07.003

Perforated panel, or plate, absorbers are commonly employed to reduce sound pressure levels across a broad range of applications including the built environment, industrial installations and propulsion devices. The acoustic performance of a perforate... Read More about Application of a porous media model for the acoustic damping of perforated plate absorbers.

A dynamic HAZOP case study using the Texas City refinery explosion (2016)
Journal Article
Isimite, J., Rubini, P., & Isimite, J. O. (2016). A dynamic HAZOP case study using the Texas City refinery explosion. Journal of Loss Prevention in the Process Industries, 40(March), 496-501. https://doi.org/10.1016/j.jlp.2016.01.025

© 2016 Elsevier Ltd. The catastrophic explosion that occurred at Texas City on 23 March 2005 during the start-up of the raffinate splitter resulted in an estimated 15 deaths and 180 injuries. Since the incident, several studies have investigated the... Read More about A dynamic HAZOP case study using the Texas City refinery explosion.

Large Eddy Simulation of acoustic pulse propagation and turbulent flow interaction in expansion mufflers (2015)
Journal Article
Singh, N. K., & Rubini, P. (2015). Large Eddy Simulation of acoustic pulse propagation and turbulent flow interaction in expansion mufflers. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 98(November), 6-19. https://doi.org/10.1016/j.apacoust.2015.04.015

A novel hybrid pressure-based compressible solver is developed and validated for low Mach number acoustic flow simulation. The solver is applied to the propagation of an acoustic pulse in a simple expansion muffler, a configuration frequently employe... Read More about Large Eddy Simulation of acoustic pulse propagation and turbulent flow interaction in expansion mufflers.

Sound absorption of porous cement composites: effects of the porosity and the pore size (2015)
Journal Article
Rutkevičius, M., Austin, Z., Chalk, B., Mehl, G. H., Qin, Q., Rubini, P. A., Stoyanov, S. D., & Paunov, V. N. (2015). Sound absorption of porous cement composites: effects of the porosity and the pore size. Journal of materials science, 50(9), 3495-3503. https://doi.org/10.1007/s10853-015-8912-5

© 2015, Springer Science+Business Media New York. We prepared sound absorbing cement–hydrogel composites using a hydrogel slurry templating technique. We air-dried the wet cement composites containing a varying percentage and size of entrapped hydrog... Read More about Sound absorption of porous cement composites: effects of the porosity and the pore size.

Experimental and numerical investigation of Helmholtz resonators and perforated liners as attenuation devices in industrial gas turbine combustors (2014)
Journal Article
Houston, B., Wang, J., Qin, Q., & Rubini, P. (2015). Experimental and numerical investigation of Helmholtz resonators and perforated liners as attenuation devices in industrial gas turbine combustors. Fuel, 151, 31-39. https://doi.org/10.1016/j.fuel.2014.12.001

This paper reports upon developments in the simulation of the passive control of combustion dynamics in industrial gas turbines using acoustic attenuation devices such as Helmholtz resonators and perforated liners. Combustion instability in gas turbi... Read More about Experimental and numerical investigation of Helmholtz resonators and perforated liners as attenuation devices in industrial gas turbine combustors.

Sound absorption properties of porous composites fabricated by a hydrogel templating technique (2013)
Journal Article
Rutkevicius, M., Mehl, G. H., Paunov, V. N., Qin, Q., Rubini, P. A., Stoyanov, S. D., & Petkov, J. (2013). Sound absorption properties of porous composites fabricated by a hydrogel templating technique. Journal of Materials Research, 28(17), 2409-2414. https://doi.org/10.1557/jmr.2013.194

We have used a hydrogel templating technique followed by the subsequent evaporation of water present to fabricate porous cement and porous PDMS composites, and we have analyzed their sound absorption properties. All experiments were carried out with... Read More about Sound absorption properties of porous composites fabricated by a hydrogel templating technique.

A numerical study of secondary flow and large eddies in a driven cavity (2012)
Journal Article
Yau, Y. H., Badarudin, A., & Rubini, P. A. (2012). A numerical study of secondary flow and large eddies in a driven cavity. Journal of mechanical science and technology, 26(1), 93-102. https://doi.org/10.1007/s12206-011-0913-y

This paper reports on the application of a newly developed LES flow solver to compute a true three-dimensional flow. The research also investigates the behavior of turbulence statistics by comparing transient simulation results to available data base... Read More about A numerical study of secondary flow and large eddies in a driven cavity.