FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3136017208> ?p ?o ?g. }

• W3136017208 abstract "Although blood flows are mostly laminar, transition to turbulence and flow separations are observed at curved vessels, bifurcations, or constrictions. It is known that wall-shear stress plays an important role in the development of atherosclerosis as well as in arteriovenous grafts. In order to help understand the behavior of flow separation and transition to turbulence in post-stenotic blood flows, an experimental study of transitional pulsatile flow with stenosis was carried out using time-resolved particle image velocimetry and a microelectromechanical systems wall-shear stress sensor at the mean Reynolds number of 1750 with the Womersley number of 6.15. At the start of the pulsatile cycle, a strong shear layer develops from the tip of the stenosis, increasing the flow separation region. The flow at the throat of the stenosis is always laminar due to acceleration, which quickly becomes turbulent through a shear-layer instability under a strong adverse pressure gradient. At the same time, a recirculation region appears over the wall opposite to the stenosis, moving downstream in sync with the movement of the reattachment point. These flow behaviors observed in a two-dimensional channel flow are very similar to the results obtained previously in a pipe flow. We also found that the behavior in a pulsating channel flow during the acceleration phase of both 25% and 50% stenosis cases is similar to that of the steady flow, including the location and size of post-stenotic flow separation regions. This is because the peak Reynolds number of the pulsatile flow is similar to that of the steady flow that is investigated. The transition to turbulence is more dominant for the 50% stenosis as compared to the 25% stenosis, as the wavelet spectra show a greater broadening of turbulence energy. With an increase in stenosis to 75%, the accelerating flow is directed toward the opposite wall, creating a wall jet. The shear layer from the stenosis bifurcates as a result of this, one moving with the flow separation region toward the upper wall and the other with the wall jet toward the bottom wall. Low wall-shear stress fluctuations are found at two post-stenotic locations in the channel flow – one immediately downstream of the stenosis over the top wall (stenosis side) inside the flow separation region, and the other in the recirculation region on the bottom wall (opposite side of the stenosis)." @default.
• W3136017208 created "2021-03-29" @default.
• W3136017208 creator A5023023820 @default.
• W3136017208 creator A5027234669 @default.
• W3136017208 creator A5074782832 @default.
• W3136017208 creator A5077432214 @default.
• W3136017208 creator A5079981142 @default.
• W3136017208 date "2021-03-01" @default.
• W3136017208 modified "2023-10-15" @default.
• W3136017208 title "Transitional pulsatile flows with stenosis in a two-dimensional channel" @default.
• W3136017208 cites W169650039 @default.
• W3136017208 cites W1967149819 @default.
• W3136017208 cites W1967296654 @default.
• W3136017208 cites W1970382876 @default.
• W3136017208 cites W1975529354 @default.
• W3136017208 cites W1976506339 @default.
• W3136017208 cites W1981149685 @default.
• W3136017208 cites W1982565887 @default.
• W3136017208 cites W1984438289 @default.
• W3136017208 cites W1984645605 @default.
• W3136017208 cites W1986374845 @default.
• W3136017208 cites W1987262023 @default.
• W3136017208 cites W1996594516 @default.
• W3136017208 cites W2004381464 @default.
• W3136017208 cites W2009251691 @default.
• W3136017208 cites W2010556781 @default.
• W3136017208 cites W2011578734 @default.
• W3136017208 cites W2016764597 @default.
• W3136017208 cites W2019292991 @default.
• W3136017208 cites W2019764033 @default.
• W3136017208 cites W2020253680 @default.
• W3136017208 cites W2025952958 @default.
• W3136017208 cites W2027137668 @default.
• W3136017208 cites W2038889042 @default.
• W3136017208 cites W2044100232 @default.
• W3136017208 cites W2046037710 @default.
• W3136017208 cites W2046926018 @default.
• W3136017208 cites W2048225889 @default.
• W3136017208 cites W2048427745 @default.
• W3136017208 cites W2052008414 @default.
• W3136017208 cites W2053527022 @default.
• W3136017208 cites W2055218415 @default.
• W3136017208 cites W2060034892 @default.
• W3136017208 cites W2065591461 @default.
• W3136017208 cites W2066233510 @default.
• W3136017208 cites W2069715336 @default.
• W3136017208 cites W2080259805 @default.
• W3136017208 cites W2083396457 @default.
• W3136017208 cites W2084621368 @default.
• W3136017208 cites W2086194336 @default.
• W3136017208 cites W2086207465 @default.
• W3136017208 cites W2087489450 @default.
• W3136017208 cites W2089489112 @default.
• W3136017208 cites W2089889963 @default.
• W3136017208 cites W2091399349 @default.
• W3136017208 cites W2092748974 @default.
• W3136017208 cites W2092941459 @default.
• W3136017208 cites W2099000630 @default.
• W3136017208 cites W2099312271 @default.
• W3136017208 cites W2099868609 @default.
• W3136017208 cites W2100272414 @default.
• W3136017208 cites W2100357276 @default.
• W3136017208 cites W2101305730 @default.
• W3136017208 cites W2102232730 @default.
• W3136017208 cites W2109177313 @default.
• W3136017208 cites W2110089848 @default.
• W3136017208 cites W2111076607 @default.
• W3136017208 cites W2113357422 @default.
• W3136017208 cites W2115533377 @default.
• W3136017208 cites W2122209102 @default.
• W3136017208 cites W2129754481 @default.
• W3136017208 cites W2131179315 @default.
• W3136017208 cites W2131537960 @default.
• W3136017208 cites W2134444327 @default.
• W3136017208 cites W2134688511 @default.
• W3136017208 cites W2134785906 @default.
• W3136017208 cites W2135768099 @default.
• W3136017208 cites W2140175233 @default.
• W3136017208 cites W2143123694 @default.
• W3136017208 cites W2148237643 @default.
• W3136017208 cites W2154443739 @default.
• W3136017208 cites W2157460695 @default.
• W3136017208 cites W2159195913 @default.
• W3136017208 cites W2160903673 @default.
• W3136017208 cites W2166385084 @default.
• W3136017208 cites W2167264060 @default.
• W3136017208 cites W2169150909 @default.
• W3136017208 cites W2169352170 @default.
• W3136017208 cites W2171851776 @default.
• W3136017208 cites W2297601874 @default.
• W3136017208 cites W2333764849 @default.
• W3136017208 cites W2338735221 @default.
• W3136017208 cites W2345224440 @default.
• W3136017208 cites W2554663177 @default.
• W3136017208 cites W2770573060 @default.
• W3136017208 cites W2784612086 @default.
• W3136017208 cites W2791132021 @default.
• W3136017208 cites W2887641660 @default.
• W3136017208 cites W2927076953 @default.
• W3136017208 cites W3021712345 @default.

• next