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Keywords: particle image velocimetry
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Journal Articles
Article Type: Technical Briefs
J Biomech Eng. July 2021, 143(7): 074501.
Paper No: BIO-20-1457
Published Online: March 24, 2021
...Toshihiro Sera; Naoki Kamiya; Taichi Fukushima; Gaku Tanaka We visualized the flow patterns in an alveolated duct model with breathing-like expanding and contracting wall motions using particle image velocimetry, and then, we investigated the effect of acinar deformation on the flow patterns. We...
Journal Articles
Article Type: Research-Article
J Biomech Eng. May 2020, 142(5): 051002.
Paper No: BIO-19-1100
Published Online: January 17, 2020
... extracorporeal membrane oxygenation venovenous neonatal double lumen cannula particle image velocimetry infusion channel outflow jet flow flow control device design Extracorporeal membrane oxygenation (ECMO) is an efficacious lifesaving therapy for pediatric and neonatal patients suffering from...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J Biomech Eng. December 2019, 141(12): 121004.
Paper No: BIO-19-1215
Published Online: October 22, 2019
... experiments mimicking low- and high-flow conditions, as well as steady and pulsatile flow, were conducted. Additionally, a particle image velocimetry (PIV)-compatible Fontan model was created and flow was analyzed with PIV, arterial spin labeling (ASL), and four-dimensional (4D) flow MRI. Differences, though...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. April 2012, 134(4): 044501.
Published Online: April 20, 2012
... pressure drops. Furthermore, during the development of the 12cc Penn State pediatric PVAD, particle image velocimetry (PIV) illustrated that hematocrit levels, through changes in blood viscoelasticity, affected the fluid dynamics. The objective of this study is to compare the fluid dynamics of a pediatric...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2011, 133(10): 101002.
Published Online: October 31, 2011
... of pulsatile LVADs under these conditions. Particle image velocimetry (PIV) was used to capture planar flow in the pump body of a Penn State 50 cubic centimeters (cc) LVAD for heart rates of 75–150 bpm and respective systolic durations of 38–50%. Shear rates were calculated along the lower device wall...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2011, 133(4): 041002.
Published Online: February 17, 2011
... were made in the benchmark device at three independent laboratories using particle image velocimetry (PIV). Flow measurements were performed over a range of nozzle throat Reynolds numbers ( Re throat ) from 500 to 6500, covering the laminar, transitional, and turbulent flow regimes. A standard...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2010, 132(5): 051009.
Published Online: March 30, 2010
... of expanding and contracting in phase with the oscillatory flow through the tube. Realistic breathing conditions were achieved by exercising the model at physiologically relevant Reynolds and Womersley numbers. Particle image velocimetry was used to measure the resulting flow patterns in the alveolus. Data...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2010, 132(5): 051010.
Published Online: March 30, 2010
...-induced advection (computed from velocity maps obtained by particle image velocimetry) and gravitational settling. Particles were introduced during the first inhalation cycle and their trajectories and deposition statistics were calculated for subsequent cycles for three different particle sizes ( 0.25 μ...
Journal Articles
Article Type: Research Papers
J Biomech Eng. February 2010, 132(2): 021008.
Published Online: January 29, 2010
... sac model geometries using particle image velocimetry under realistic breathing conditions. Penetration depth of the tidal air was determined from the experimental fluid pathlines. Aerosol particle deposition was estimated by simple superposition of Brownian diffusion and sedimentation...
Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2008, 130(4): 041019.
Published Online: June 24, 2008
..., and a wall shear rate greater than 500 s − 1 . Particle image velocimetry was used to compare the flow fields in the chamber of the 12 cc Penn State pediatric pulsatile VAD using two mechanical heart valves: Björk–Shiley monostrut (BSM) tilting disk valves and CarboMedics (CM) bileaflet valves...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021015.
Published Online: April 3, 2008
... detailed, CFD-predicted velocity fields against those measured using particle imaging velocimetry (PIV). Two anatomically realistic flow-through phantoms, one a giant internal carotid artery (ICA) aneurysm and the other a basilar artery (BA) tip aneurysm, were constructed of a clear silicone elastomer...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. December 2006, 128(6): 844–851.
Published Online: June 15, 2006
... aneurysms by using particle image velocimetry (PIV) measurements, with a focus on the effects of small geometric variations in aneurysm models on the flow dynamics obtained with CFD. Method of Approach . An experimental phantom was fabricated out of silicone elastomer to best mimic a spherical aneurysm...