Publicado 6 números por año
ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110
Indexed in
Modeling of Noise Generation by a Vascular Stenosis
SINOPSIS
An in-vitro experiment is carried out in order to study the properties of an acoustic field in the human chest produced by flow in a larger, blood vessel. The cases of intact and partially occluded vessels are considered, and abrupt rigid-wall hollow axisymmetric cylindrical plugs of varying inner diameters and lengths are used as stenoses. The analysis of the noise fields reveals the characteristic signs of the presence of a stenotic obstruction in the vessel. These are the general increase of the noise levels and production of the new frequency components in the power spectrum. The components are identified with the characteristic frequencies of vortex formation in the disturbed flow region behind a stenosis and the resonance frequencies of vibrations of the poststenotic segment of vessel. The stenosis generated acoustic power is found to be approximately proportional to the fourth power of the constriction severity and fourth power of the flow's Reynolds number.
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Salman Huseyin Enes, Sert Cuneyt, Yazicioglu Yigit, Computational analysis of high frequency fluid–structure interactions in constricted flow, Computers & Structures, 122, 2013. Crossref
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Salman Huseyin Enes, Yazicioglu Yigit, Flow-induced vibration analysis of constricted artery models with surrounding soft tissue, The Journal of the Acoustical Society of America, 142, 4, 2017. Crossref
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Salman Huseyin Enes, Yazicioglu Yigit, Experimental and numerical investigation on soft tissue dynamic response due to turbulence-induced arterial vibration, Medical & Biological Engineering & Computing, 57, 8, 2019. Crossref
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Ozden Kamil, Sert Cuneyt, Yazicioglu Yigit, Numerical investigation of wall pressure fluctuations downstream of concentric and eccentric blunt stenosis models, Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 234, 1, 2020. Crossref
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Salman Huseyin Enes, Yazicioglu Yigit, Computational analysis for non-invasive detection of stenosis in peripheral arteries, Medical Engineering & Physics, 70, 2019. Crossref
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Ozden Kamil, Sert Cuneyt, Yazicioglu Yigit, Effect of stenosis shape on the sound emitted from a constricted blood vessel, Medical & Biological Engineering & Computing, 58, 3, 2020. Crossref
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Khalili Fardin, Gamage Peshala T., Taebi Amirtahà, Johnson Mark E., Roberts Randal B., Mitchel John, Spectral Decomposition and Sound Source Localization of Highly Disturbed Flow through a Severe Arterial Stenosis, Bioengineering, 8, 3, 2021. Crossref
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Ozden Kamil, Yazicioglu Yigit, Sert Cuneyt, Simulation of turbulence induced sound generation inside stenosed femoral artery models with different severities and eccentricities, Computer Methods and Programs in Biomedicine, 208, 2021. Crossref
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Khalili Fardin, Gamage Peshala T., Taebi Amirtahà, Johnson Mark E., Roberts Randal B., Mitchell John, Spectral Decomposition of the Flow and Characterization of the Sound Signals through Stenoses with Different Levels of Severity, Bioengineering, 8, 3, 2021. Crossref
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Salman Huseyin Enes, Computational Modeling and Investigation of the Vibro-Acoustic Effects Induced by Intracranial Stenosis in a Simplified Head Model, Journal of Vibration Engineering & Technologies, 2022. Crossref