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Keywords: vortices
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2011, 133(12): 121008.
Published Online: December 23, 2011
... of the vorticity on the nominal center-plane of mouse model A. The streamlines overlaid on the contours indicate the position of the vortex. Right-hand column: corresponding DUS-EKV images (the DUS-EKV images were registered to the numerical data by choosing the frame of vortex formation as the initial...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2010, 132(12): 121005.
Published Online: November 8, 2010
... with duty cycle. A study of time-varying flow rate, velocity field, and vorticity illuminates the flow behavior during each phase of the cutting cycle and shows that the opening/closing transition plays a key role in improving the vitreous cutter’s efficacy and minimizing the potential damage to surrounding...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. October 2010, 132(10): 104503.
Published Online: September 27, 2010
... , 195 , pp. 3776 – 3796 . 10.1016/j.cma.2005.04.014 blood vessels computational fluid dynamics finite volume methods fracture haemodynamics laminar flow turbulence vortices plaque stenosis carotid ulcerated hemorrhaged rupture hemodynamics computational fluid mechanics...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. November 2009, 131(11): 111005.
Published Online: October 16, 2009
... conditions. 16 10 2008 28 05 2009 16 10 2009 artificial organs cardiovascular system finite volume methods flow simulation Green's function methods haemodynamics jets pulsatile flow turbulence vortices anastomosis implicit large eddy simulation left ventricular assist...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2009, 131(9): 091001.
Published Online: August 4, 2009
... measurement computational fluid dynamics diagnostic radiography fracture pulsatile flow shear flow vortices X-ray applications computational fluid dynamics intracranial aneurysm cerebral aneurysm heart rate Womersley number flow disturbance large eddy simulation An IA...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. July 2009, 131(7): 074516.
Published Online: July 7, 2009
... biomembranes blood vessels cellular biophysics haemodynamics haemorheology non-Newtonian flow vortices Arterial gas embolism (bubble) occurs from many causes including decompression sickness and medical procedures such as cardiopulmonary bypass surgery and angiography ( 1 ). Intravascular air...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2008, 130(4): 041001.
Published Online: May 16, 2008
... the housing. Due to the complex nature of the whole flow field illustrated in Fig. 3 , we concentrate here on regions of high acceleration and deceleration, regurgitation, and vorticity. Typically, these regions produce large pressure differentials and high shear. Three dimensional flow structures...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2006, 128(4): 527–539.
Published Online: February 3, 2006
... vorticity into the trailing jet. It has been shown that for a broad range of flow conditions, the time of pinchoff referred as the formation number (FN) ranges from 0.9 to 4.5 and depends on the velocity program and Reynolds number ( 3 4 ). To approximate...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. December 2004, 126(6): 714–726.
Published Online: February 4, 2005
... of vortical structures upstream of the aortic valve, vortex-induced velocities and redirection of the flow in abidance of the Biot–Savart law, domain segmentation, resonant times of vortical structures, and regions of stagnant flow. The presence of three distinct flow patterns, for the three configurations...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. October 2004, 126(5): 559–566.
Published Online: November 23, 2004
... measurement velocity measurement biomedical optical imaging nickel alloys titanium alloys prosthetics blood vessels diseases vortices elasticity The use of stents has dramatically increased since their approval by the United States Food and Drug Administration in 1994, largely as a result...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2003, 125(4): 461–471.
Published Online: August 1, 2003
... that in inspiratory flow, and larger vortices existed in post-stenosis in expiratory flow, and thus might contribute to wheeze generation. 6 Experimental apparatus for measuring the velocity field. In inspiratory flow the reservoir A was used as an upper reservoir and the other reservoir B was as a lower one...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2002, 124(1): 30–36.
Published Online: September 17, 2001
... vessels haemodynamics laminar flow vortices cellular biophysics Vortex Blood Flow SMC Proliferation Neointimal Morphogenesis Focal neointima and atheroma are often found in blood vessels with complex geometry such as curvatures and bifurcations. Blood shear stress has long been...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2002, 124(1): 9–20.
Published Online: September 17, 2001
... blood vessels haemodynamics pulsatile flow numerical analysis turbulence vortices Carotid Artery Bifurcation Stenotic Vessels Atherosclerosis Plaque Rupture Finite Volume The role fluid dynamics plays in atherogenesis is much more clearly understood than its part in continued...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. October 2001, 123(5): 474–484.
Published Online: May 15, 2001
... by the Bioengineering Division September 30, 1999; revised manuscript received May 15, 2001. Associate Editor: C. R. Ethier. 30 September 1999 15 May 2001 haemodynamics pulsatile flow physiological models vortices Abdominal Aortic Aneurysms (AAAs) are localized balloon-shaped expansions...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2001, 123(4): 325–332.
Published Online: March 26, 2001
..., the flow downstream of the stenosis transitions to turbulence and exhibits all the classic features of post-stenotic flow as described by Khalifa and Giddens (1981) and Lieber and Giddens (1990). These include the periodic shedding of shear layer vortices and transition to turbulence downstream...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2001, 123(1): 88–96.
Published Online: October 16, 2000
...H. Liu; T. Yamaguchi Blood flow in arteries often shows a rich variety of vortical flows, which are dominated by the complex geometry of blood vessels, the dynamic pulsation of blood flow, and the complicated boundary conditions. With a two-dimensional model of unsteady flow in a stenosed channel...