Fluid mechanics of heart valves and their replacements
As the pulsatile cardiac blood flow drives the heart valve leaflets to open and close, the flow
in the vicinity of the valve resembles a pulsed jet through a nonaxisymmetric orifice with a …
in the vicinity of the valve resembles a pulsed jet through a nonaxisymmetric orifice with a …
Dynamical systems techniques for enhancing microfluidic mixing
S Balasuriya - Journal of Micromechanics and Microengineering, 2015 - iopscience.iop.org
Achieving rapid mixing is often desirable in microfluidic devices, for example in improving
reation rates in biotechnological assays. Enhancing mixing within a particular context is …
reation rates in biotechnological assays. Enhancing mixing within a particular context is …
Validation of pressure drop assessment using 4D flow MRI‐based turbulence production in various shapes of aortic stenoses
Purpose To validate pressure drop measurements using 4D flow MRI‐based turbulence
production in various shapes of stenotic stenoses. Methods In vitro flow phantoms with …
production in various shapes of stenotic stenoses. Methods In vitro flow phantoms with …
On the unexplored relationship between kinetic energy and helicity in prosthetic heart valves hemodynamics
Surgical replacement of the diseased aortic valve consists in the implantation of a prosthetic
heart valve (PHV), either biological or mechanical (BHV and MHV, respectively). Risks of …
heart valve (PHV), either biological or mechanical (BHV and MHV, respectively). Risks of …
Quantification of the blood mixing in the left ventricle using finite time Lyapunov exponents
MG Badas, F Domenichini, G Querzoli - Meccanica, 2017 - Springer
Thrombus formation is one of the major complications in myocardial infarction. One of the
causes is known to be the regional hemostasis, ie the presence of zones where the …
causes is known to be the regional hemostasis, ie the presence of zones where the …
Effect of pannus formation on the prosthetic heart valve: In vitro demonstration using particle image velocimetry
Although hemodynamic influence of the subprosthetic tissue, termed as pannus, may
contribute to prosthetic aortic valve dysfunction, the relationship between pannus extent and …
contribute to prosthetic aortic valve dysfunction, the relationship between pannus extent and …
[CARTE][B] Barriers and transport in unsteady flows: a Melnikov approach
S Balasuriya - 2016 - SIAM
Over the past several years, there has been an explosion of interest in analyzing flow
barriers in fluids. This has been driven by a variety of reasons. One is a concern for our …
barriers in fluids. This has been driven by a variety of reasons. One is a concern for our …
3D anisotropic mesh adaptation for Reynolds Averaged Navier-Stokes simulations
L Frazza - 2018 - theses.hal.science
The fast and reliable simulation of turbulent flow using Reynolds Averaged Navier Stokes
(RANS) models is a major financial issue for many industries. With the increasing complexity …
(RANS) models is a major financial issue for many industries. With the increasing complexity …
Eulerian and Lagrangian stagnation plane behavior of moderate Reynolds number round opposed-jets flow
D Wu, J Li, Z Liu, Y **ong, C Zheng, PR Medwell - Computers & Fluids, 2016 - Elsevier
Turbulent opposed jet (TOJ) flow is characterized by an unsteady stagnation plane formed
by two counter-flowing jets. The complicated behavior of the stagnation plane significantly …
by two counter-flowing jets. The complicated behavior of the stagnation plane significantly …
3D Finite Time Lyapunov Exponents in a left ventricle laboratory model
MG Badas, S Espa, S Fortini… - EPJ Web of …, 2015 - epj-conferences.org
Finite Time Lyapunov Exponents (FTLEs) are a powerful means to infer characteristic
features of the flow that cannot be revealed by other Eulerian criteria. Recently FTLEs are …
features of the flow that cannot be revealed by other Eulerian criteria. Recently FTLEs are …