scholarly journals Experimental and Numerical Study of the Flow Dynamics in Treatment Approaches for Aortic Arch Aneurysms

10.5772/66976 ◽  
2017 ◽  
Author(s):  
Asaph Nardi ◽  
Barak Even-Chen ◽  
Idit Avrahami
Keyword(s):  
Aortic Arch ◽  
Numerical Study ◽  
Flow Dynamics ◽  
Treatment Approaches

Flow Dynamics of Vibrated Dense Granular Materials in the Presence of Ambient Gas

Volume 2 ◽  
2004 ◽  
Author(s):  
Azita Soleymani ◽  
Piroz Zamankhan ◽  
Hassan Yousefi ◽  
William Polashenski ◽  
Vesa Tanskanen
Keyword(s):  
Granular Materials ◽  
Numerical Study ◽  
Vertical Direction ◽  
Critical Value ◽  
Flow Dynamics ◽  
Particle Phase ◽  
Narrow Gap ◽  
Sinusoidal Oscillation ◽  
Interfacial Drag ◽  
The Continuum

Results are presented from a numerical study examining the flow dynamics of condensed granular materials in the presence of an interstitial gas in a narrow gap between two concentric cylindrical buckets subjected to sinusoidal oscillation in the vertical direction of the form z = Asin(ωt), where the parameter Γ = Aω2/g exceeds a critical value, Γc, above which the system becomes fluidized. Using a recently developed expression for the stress tensor of particle phase, a set of conservation equations were derived for the particle and fluid phases interacting via an interfacial drag force. Numerical integration of the continuum equations for the granular material in buckets revealed that above Γc, granular materials may exhibit liquid-like behavior and convection can occur creating a heap similar to that previously observed experimentally.

scholarly journals P1424Differences in aortic arch flow dynamics in bicuspid aortic valve based on cusp fusion phenotypes

2017 ◽  
Vol 38 (suppl_1) ◽  
Author(s):  
L. Dux-Santoy ◽  
A. Guala ◽  
J.F. Rodriguez-Palomares ◽  
G. Teixido-Tura ◽  
G. Maldonado ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Arch ◽  
Bicuspid Aortic Valve ◽  
Flow Dynamics
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