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Keywords: hydrodynamics
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. January 2020, 142(1): 011003.
Paper No: BIO-18-1198
Published Online: October 1, 2019
... aortic valves, which often result in deformed prosthesis geometries after deployment. We investigated the effects of deformed valve annulus configurations on a surgical bioprosthetic valve as a model for TAV. We studied valve leaflet motions, stresses and strains, and analog hydrodynamic measures (using...
Topics: Valves, Stress
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. February 2013, 135(2): 021021.
Paper No: BIO-12-1474
Published Online: February 7, 2013
... prosthetic heart valve. The valve has been hemodynamically optimized via our DTE methodology. The structural stress analysis demonstrates a clear reduction in potentially damaging stress concentrations. The in vitro hydrodynamics and bulk platelet activation measurements are comparable to a commercially...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. January 2011, 133(1): 011004.
Published Online: December 22, 2010
... -plane, τ r θ , and ( c ) shear stress in the x z -plane, τ r ϕ (Eq. 12 ). The colors of the full-field stress map indicate locations with positive ( + red ) , negative (−blue), and zero (0 green) hydrodynamic stresses based on the prescribed coordinate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2008, 130(6): 061016.
Published Online: October 23, 2008
... deceleration at each corresponding velocity. The glide efficiency depends on the hydrodynamic characteristic of the body, which is influenced by the body’s shape as well as by the body’s size. To distinguish the effects of size and shape on the glide efficiency, a size-related glide constant and a shape...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2007, 129(6): 863–872.
Published Online: March 7, 2007
...). PIV results indicate a marked reduction in intra-aneurysmal flow activity after divertor implantation in the innominate artery across the aneurysm neck. The mean hydrodynamic circulation after divertor implantation was reduced to 14% or less of the mean circulation in the control and the mean intra...
Journal Articles
Publisher: ASME
Article Type: Design Innovations
J Biomech Eng. April 2006, 128(2): 271–278.
Published Online: October 20, 2005
... and subsequent sustained adhesion. However, further investigation has been limited by the lack of experimental models that allow quantitative measurement of the hydrodynamic environment over adherent cells. The purpose of this study was to develop a system capable of acquiring quantitative flow profiles over...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2003, 125(4): 425–433.
Published Online: August 1, 2003
... the micro-pockets. In this way, a poro-elasto-hydrodynamic regime of lubrication is developed. Assuming that lower friction would result in lower adhesive wear, and neglecting the fatigue as well as the abrasive wear, the proposed bearing system hypothetically could reduce the amount of wear debris...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2000, 122(4): 354–363.
Published Online: March 22, 2000
... interstitial hydrodynamic effects. In the context of a technique to update images intraoperatively for image-guided neuronavigation, we have developed and quantified the deformation characteristics of a three-dimensional porous media finite element model of brain deformation in vivo. Results have demonstrated...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. August 2000, 122(4): 321–326.
Published Online: January 5, 2000
...Sean D. Chambers; Robert H. Bartlett; Steven L. Ceccio The purpose of this study was to determine the hemolytic potentials of discrete bubble cavitation and attached cavitation. To generate controlled cavitation events, a venturi-geometry hydrodynamic device, called a Cavitation Susceptibility...