scholarly journals Mesh Convolutional Neural Networks for Wall Shear Stress Estimation in 3D Artery Models

2022 ◽  
pp. 93-102
Author(s):  
Julian Suk ◽  
Pim de Haan ◽  
Phillip Lippe ◽  
Christoph Brune ◽  
Jelmer M. Wolterink
Keyword(s):  
Neural Networks ◽  
Shear Stress ◽  
Wall Shear Stress ◽  
Convolutional Neural Networks ◽  
Stress Estimation ◽  
Wall Shear

1003 Accuracy improvement of vascular wall shear stress estimation in the method of PC-MR based CFD

2011 ◽  
Vol 2011.24 (0) ◽  
pp. 334-336
Author(s):  
Kohei AOKI ◽  
Yuki ONISHI ◽  
Kenji AMAYA ◽  
Toshiyasu SHIMIZU ◽  
Haruo ISODA ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Vascular Wall ◽  
Accuracy Improvement ◽  
Stress Estimation ◽  
Wall Shear

Wall shear stress estimation in the aorta: Impact of wall motion, spatiotemporal resolution, and phase noise

2018 ◽  
Vol 48 (3) ◽  
pp. 718-728 ◽  
Author(s):  
Judith Zimmermann ◽  
Daniel Demedts ◽  
Hanieh Mirzaee ◽  
Peter Ewert ◽  
Heiko Stern ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Phase Noise ◽  
Wall Motion ◽  
Spatiotemporal Resolution ◽  
Stress Estimation ◽  
Wall Shear

scholarly journals In vivo three-dimensional MR wall shear stress estimation in ascending aortic dilatation

2011 ◽  
Vol 33 (3) ◽  
pp. 589-597 ◽  
Author(s):  
Erik T. Bieging ◽  
Alex Frydrychowicz ◽  
Andrew Wentland ◽  
Benjamin R. Landgraf ◽  
Kevin M. Johnson ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Three Dimensional ◽  
Aortic Dilatation ◽  
Stress Estimation ◽  
Wall Shear

Computational models for wall shear stress estimation in scaffolds: A comparative study of two complete geometries

2012 ◽  
Vol 45 (9) ◽  
pp. 1586-1592 ◽  
Author(s):  
F. Maes ◽  
T. Claessens ◽  
M. Moesen ◽  
H. Van Oosterwyck ◽  
P. Van Ransbeeck ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Comparative Study ◽  
Computational Models ◽  
Stress Estimation ◽  
Wall Shear

scholarly journals The impact of 4D flow displacement artifacts on wall shear stress estimation

2021 ◽  
Vol 85 (6) ◽  
pp. 3154-3168
Author(s):  
Simon Schmidt ◽  
Sebastian Flassbeck ◽  
Sonja Schmelter ◽  
Ellen Schmeyer ◽  
Mark E. Ladd ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
4D Flow ◽  
Flow Displacement ◽  
Stress Estimation ◽  
Wall Shear ◽  
The Impact

On the Accuracy of Wall Shear Stress Using DPIV

Volume 1 ◽  
2004 ◽  
Author(s):  
Ali Etebari ◽  
Jason Carneal ◽  
Pavlos P. Vlachos
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Moving Boundaries ◽  
Viscous Drag ◽  
Shear Stresses ◽  
Indirect Estimation ◽  
Stress Estimation ◽  
Wall Shear ◽  
Near Wall

Wall shear stress measurements are important for a variety of fluid mechanics phenomena and engineering applications ranging from estimation of viscous drag to the regulation of endothelial cell function in arterial flows [1–5]. Although DPIV has emerged over the past years as the method of choice for global non-invasive optical flow diagnostics [6–13] the issues associated with the indirect estimation of wall shear stresses from DPIV measured velocities have not been sufficiently addressed. The challenge is even more significant in the presence of deformable and dynamically moving boundaries. In particular such measurements require accurate determination of wall position, near-wall velocity measurements using DPIV algorithms, and the indirect estimation of the velocity derivatives in order to evaluate the shear stress. Dynamically moving boundaries, whether rigid or compliant, require special consideration, as the boundary position must be determined accurately as a function of space and time. It is necessary to quantify the accuracy of each measurement that contributes to the error of the wall shear stress estimation. In this work we decompose the problem into the following three aspects: (a) determination of the exact boundary points (b) DPIV velocity measurement uncertainty in the near wall region. (c) velocity derivative error. Methodologies and improvements addressing each aspect individually are proposed and a systematic parametric study of the related error is performed. To our knowledge, this is the first detailed parametric effort to quantify the errors associated with wall shear stress estimation from DPIV velocities.

LIQUID VELOCITY PROFILES AND WALL SHEAR STRESS ESTIMATION IN WATER-AIR HORIZONTAL INTERMITTENT FLOWS

2019 ◽  
Author(s):  
Leonardo Fernandes ◽  
Rodrigo dos Santos Navarro de Mesquita ◽  
Rafaela Medeiros ◽  
Luis Fernando Azeved
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Liquid Velocity ◽  
Velocity Profiles ◽  
Stress Estimation ◽  
Wall Shear
Sign in / Sign up

Export Citation Format

Share Document