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Keywords: wall shear stress
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. January 2023, 145(1): 011013.
Paper No: BIO-21-1445
Published Online: September 19, 2022
... (CTA) images, and hemorheological parameters including time-averaged wall shear stress (TAWSS), oscillatory shear index (OSI) and relative residence time (RRT) were analyzed by computational fluid dynamics (CFD). The results showed that iliac vein stenosis could significantly increase the wall shear...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. February 2022, 144(2): 021007.
Paper No: BIO-21-1153
Published Online: September 23, 2021
... significantly altered blood flow patterns in the external iliac arteries, leading to a marked enlargement of atheroprone wall regions exposed to low and oscillatory wall shear stress (WSS), and enhanced multidirectional disturbance of WSS that may further impair endothelial function. In summary, our study...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. October 2020, 142(10): 100805.
Paper No: BIO-20-1021
Published Online: August 31, 2020
... in the center of the vessel, while generating adjacent perivalvular recirculation zones. The recirculation zones are characterized by extended particle residence times and low wall shear stress (WSS) magnitudes in comparison to the rest of the lymphangion. A malformed unileaflet valve skewed lymph flow toward...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. June 2020, 142(6): 061007.
Paper No: BIO-19-1361
Published Online: February 19, 2020
... is used to take into account the non-Newtonian viscoplastic fluid properties of mucus. Results show that the maximum wall shear stress greatly changes right prior to the rupture of the mucus plug. The surface tension influences mainly the late stage of the rupture process when the plug deforms greatly...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. October 2014, 136(10): 101006.
Paper No: BIO-14-1137
Published Online: August 6, 2014
.... , 1983 , “ Carotid Bifurcation Atherosclerosis. Quantitative Correlation of Plaque Localization With Flow Velocity Profiles and Wall Shear Stress ,” Circ. Res. , 53 ( 4 ), pp. 502 – 514 . 10.1161/01.RES.53.4.502 [3] Asakura , T. , and Karino , T. , 1990 , “ Flow Patterns and Spatial...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. August 2014, 136(8): 081001.
Paper No: BIO-13-1121
Published Online: June 2, 2014
... of the stent. Elastic modulus change in stented coronary arteries subject to the motion of the myocardium is not studied extensively. It is our objective to understand and reveal the mechanism by which changes in elastic modulus and geometry contribute to the generation of nonphysiological wall shear stress...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. July 2012, 134(7): 071005.
Published Online: July 13, 2012
... is not extensively studied. In this work, we focus our investigation on the localized hemodynamic effects of dynamic changes in curvature and torsion. It is our objective to understand and reveal the mechanism by which changes in curvature and torsion contribute towards the observed wall shear stress distribution...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. January 2012, 134(1): 011002.
Published Online: February 9, 2012
...Timothy J. Gundert; Alison L. Marsden; Weiguang Yang; John F. LaDisa, Jr. Coronary stent design affects the spatial distribution of wall shear stress (WSS), which can influence the progression of endothelialization, neointimal hyperplasia, and restenosis. Previous computational fluid dynamics (CFD...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2010, 132(9): 091009.
Published Online: August 26, 2010
... were created for both the high and low AR cases. A reference model included the aneurysm sac, left common carotid artery (LCCA), aortic arch, and downstream trifurcation/quadrification. Three-dimensional, pulsatile CFD studies were performed and streamlines, wall shear stress (WSS), oscillatory shear...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. May 2010, 132(5): 051007.
Published Online: March 29, 2010
... values of wall shear stress have been found around the tear on the true lumen wall, perhaps increasing the likelihood of expanding the tear. Turbulence intensity in the tear region reaches a maximum of 70% at midsystolic deceleration phase. Incorporating the non-Newtonian behavior of blood into the same...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2009, 131(12): 121005.
Published Online: November 4, 2009
... mouse model aortic arch atherosclerosis geometric risk factors stereo microscopic imaging computational fluid dynamics wall shear stress Atherosclerotic cardiovascular disease is the leading single cause of mortality worldwide ( 1 ). Over the past decade, the mouse has become an important...