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   Articles with "bias flow" as a keyword



A review of bias flow liners for acoustic damping in gas turbine combustors

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recommendations! Published in 2017 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2017.04.005

Abstract: The optimized design of bias flow liner is a key element for the development of low emission combustion systems in modern gas turbines and aero-engines. The research of bias flow liners has a fairly long… read more here.

Keywords: acoustic damping; flow liners; gas; bias flow ... See more keywords

Acoustic quasi-steady response of thin walled perforated liners with bias and grazing flows

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recommendations! Published in 2018 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2017.10.002

Abstract: Abstract This paper considers the acoustic performance of a passive damper in which acoustic energy is absorbed by orifices located within a thin plate (i.e. a perforated liner). The perforated liner, which incorporates orifices of… read more here.

Keywords: bias flow; bias grazing; orifice; liner ... See more keywords

Experimental study of a slit in the presence of a bias flow under medium- and high-level acoustic excitations

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recommendations! Published in 2023 at "International Journal of Spray and Combustion Dynamics"

DOI: 10.1177/17568277231167855

Abstract: This work presents an experimental investigation of the acoustic properties of a slit in the presence of a bias flow under moderate- and high-acoustic excitations. Impedance tube experiments are discussed for a geometry inspired by… read more here.

Keywords: acoustic excitations; bias flow; bias; slit presence ... See more keywords

Volumetric and Entropic Sound Sources of Helmholtz Resonators with Different Temperatures

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recommendations! Published in 2024 at "AIAA Journal"

DOI: 10.2514/1.j064410

Abstract: This study proposes an acoustic analogy model for the Helmholtz resonator (HR)–combustor system, considering the temperature difference between the bias flow from the HR and the grazing flow inside the combustor duct. The model highlights… read more here.

Keywords: temperature; bias flow; entropic sound; sound sources ... See more keywords

Effect of Face Mask Design and Bias Flow on Rebreathing During Noninvasive Ventilation

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recommendations! Published in 2019 at "Respiratory Care"

DOI: 10.4187/respcare.06269

Abstract: BACKGROUND: Noninvasive ventilation (NIV) is used to treat respiratory failure because it reduces the risks of endotracheal intubation and postextubation respiratory failure. A wide range of different interfaces is available, but concerns exist about rebreathing.… read more here.

Keywords: mask; ventilation; flow; co2 ... See more keywords

Reducing Rebreathing During Noninvasive Ventilation: Bias Flow or No Bias Flow?

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recommendations! Published in 2019 at "Respiratory Care"

DOI: 10.4187/respcare.07185

Abstract: To the Editor : We read with interest the article by Signori et al[1][1] that evaluated CO2 rebreathing during noninvasive ventilation (NIV) via a full face mask connected to a double-limb ventilation circuit with 2… read more here.

Keywords: rebreathing noninvasive; bias; bias flow; noninvasive ventilation ... See more keywords