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Keywords: vortices
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Journal Articles
Article Type: Research Papers
J Biomech Eng. December 2011, 133(12): 121008.
Published Online: December 23, 2011
... remodeling. 02 05 2011 17 11 2011 23 12 2011 23 12 2011 biomechanics cardiology diseases elongation haemodynamics numerical analysis physiological models vortices An abdominal aortic aneurysm (AAA) is a dilation of at least 1.5 times the diameter of the largest...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2011, 133(5): 051001.
Published Online: April 7, 2011
... the resolved and modeled eddies, ensuring accurate treatment of near wall turbulence structures. Flow analysis was carried out in terms of vorticity and eddy viscosity magnitudes, velocity, and turbulence intensity profiles and the results were compared both with established experimental data...
Journal Articles
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
Article Type: Technical Briefs
J Biomech Eng. October 2010, 132(10): 104503.
Published Online: September 27, 2010
... illuminate mechanisms of hemorrhage and other vessel remodeling. 04 12 2009 02 08 2010 16 08 2010 27 09 2010 27 09 2010 blood vessels computational fluid dynamics finite volume methods fracture haemodynamics laminar flow turbulence vortices plaque stenosis...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2010, 132(7): 071011.
Published Online: June 2, 2010
... to cardiovascular hardware in order to mitigate the hemodynamic factors leading to thrombus formation. 17 12 2009 27 01 2010 12 02 2010 02 06 2010 02 06 2010 cardiovascular system haemodynamics prosthetics vortices fluid mechanics passive flow control prosthetic heart...
Journal Articles
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
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
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
Article Type: Research Papers
J Biomech Eng. August 2008, 130(4): 041001.
Published Online: May 16, 2008
... to improve mechanical heart valve designs. 10 04 2007 02 10 2007 16 05 2008 cardiology cavitation computational fluid dynamics haemodynamics impact (mechanical) laser velocimetry shear flow vortices laser Doppler velocimetry mechanical heart valve blood damage shear...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. August 2006, 128(4): 527–539.
Published Online: February 3, 2006
... 2006 cardiovascular system haemodynamics vortices artificial organs DPIV vortex formation left ventricular flow mechanical heart valves Recent qualitative results support the conjecture that the healthy heart operates in an optimum energy-preserving manner by swirling...
Journal Articles
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
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
Article Type: Technical Papers
J Biomech Eng. October 2004, 126(5): 594–603.
Published Online: November 23, 2004
...) more vortices were present in the structured model than in the unstructured model; (3) both models had the least energy loss when flow was equally distributed to the left and right pulmonary arteries, while high losses occurred for extreme pulmonary arterial flow splits; (4) the energy loss results...
Journal Articles
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. Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING . Manuscript received by the Bioengineering Division April 22, 2002...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. April 2003, 125(2): 207–217.
Published Online: April 9, 2003
... 04 2003 pulsatile flow finite element analysis physiological models haemodynamics laminar flow diseases vortices Abdominal Aortic Aneurysms (AAAs) occur in the infrarenal segment of the abdominal aorta, between the renal arteries and the iliac bifurcation. The majority...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. February 2002, 124(1): 30–36.
Published Online: September 17, 2001
... received September 17, 2001. Associate Editor: V. T. Turitto. 22 February 2000 17 September 2001 blood blood vessels haemodynamics laminar flow vortices cellular biophysics Vortex Blood Flow SMC Proliferation Neointimal Morphogenesis Focal neointima and atheroma...
Journal Articles
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 Flow through severely atherosclerotic vessels is of great interest. These vessels pose grave health risks...
Journal Articles
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
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
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...