Time-resolved particle image velocimetry

SJ Beresh - Measurement Science and Technology, 2021 - iopscience.iop.org
Time-resolved particle image velocimetry (TR-PIV) has become widespread in fluid
dynamics. Essentially a velocity field movie, the dynamic content provides temporal as well …

Transcatheter aortic valve thrombosis: a review of potential mechanisms

V Raghav, P Midha, R Sharma… - Journal of the …, 2021 - royalsocietypublishing.org
Transcatheter aortic valve (TAV) thrombosis has been recognized as a significant problem
that sometimes occurs as early as within 30 days after valve implantation, leading to …

Flow control over a circular cylinder using vortex generators: Particle image velocimetry analysis and machine-learning-based prediction of flow characteristics

A Okbaz, MH Aksoy, N Kurtulmuş, AB Çolak - Ocean Engineering, 2023 - Elsevier
Controlling the flow around circular cylinders is crucial to mitigate vortex-induced vibrations
and prevent structural damage in a range of applications, such as marine and offshore …

Impact of leaflet laceration on transcatheter aortic valve-in-valve washout: BASILICA to solve neosinus and sinus stasis

H Hatoum, P Maureira, S Lilly, LP Dasi - JACC: Cardiovascular …, 2019 - jacc.org
Objectives: The aim of this study was to evaluate any potential leaflet washout benefits after
bioprosthetic or native aortic scallop intentional laceration to prevent iatrogenic coronary …

Reconstruction of flow field with missing experimental data of a circular cylinder via machine learning algorithm

MH Aksoy, I Goktepeli, M Ispir, A Cakan - Physics of Fluids, 2023 - pubs.aip.org
In this study, artificial neural networks (ANNs) have been implemented to recover missing
data from the particle image velocimetry (PIV), providing quantitative measurements of …

Impact of bileaflet mechanical heart valve leaflet dysfunction on left ventricular blood flow: An experimental study

Y Qiang, T Duan, M Zhang, L Qi, L Wei, W Zhong - Physics of Fluids, 2023 - pubs.aip.org
Artificial heart valve replacement is recognized as the most effective method for treating
valvular heart disease. Presently, the bileaflet mechanical heart valve is the predominant …

Experimental and numerical study of free-falling streams of particles impacting an inclined surface

D Dodds, AAR Sarhan, J Naser - Experimental and Computational …, 2023 - Springer
This paper presents a detailed experimental and numerical analysis of free-falling particle
streams impacting a 45° inclined surface of differing materials. The particles used in this …

Influence of patient-specific characteristics on transcatheter heart valve neo-sinus flow: an in silico study

S Singh-Gryzbon, B Ncho, V Sadri, SS Bhat… - Annals of biomedical …, 2020 - Springer
Thrombosis in post-transcatheter aortic valve replacement (TAVR) patients has been
correlated with flow stasis in the neo-sinus. This study investigated the effect of the post …

In-Vitro Assessment of the Effects of Transcatheter Aortic Valve Leaflet Design on Neo-Sinus Geometry and Flow

B Ncho, V Sadri, J Ortner, S Kollapaneni… - Annals of biomedical …, 2021 - Springer
Transcatheter aortic valve (TAV) leaflet thrombosis is a clinical risk with potentially fatal
consequences. Studies have identified neo-sinus flow stasis as a cause of leaflet …

Tomographic PIV in a model of the left ventricle: 3D flow past biological and mechanical heart valves

H Saaid, J Voorneveld, C Schinkel, J Westenberg… - Journal of …, 2019 - Elsevier
Left ventricular flow is intrinsically complex, three-dimensional and unsteady. Its features are
susceptible to cardiovascular pathology and treatment, in particular to surgical interventions …