Zobrazeno 1 - 10
of 323
pro vyhledávání: '"Goubergrits, Leonid"'
Autor:
Katz, Sarah, Caiazzo, Alfonso, Moreau, Baptiste, Wilbrandt, Ulrich, Brüning, Jan, Goubergrits, Leonid, John, Volker
Numerical simulations of pulsatile blood flow in an aortic coarctation require the use of turbulence modeling. This paper considers three models from the class of large eddy simulation (LES) models (Smagorinsky, Vreman, $\boldsymbol{\sigma}$-model) a
Externí odkaz:
http://arxiv.org/abs/2208.14217
The Hodge decomposition provides a very powerful mathematical method for the analysis of 2D and 3D vector fields. It states roughly that any vector field can be $L^2$-orthogonally decomposed into a curl-free, divergence-free, and a harmonic field. Th
Externí odkaz:
http://arxiv.org/abs/1911.12173
Autor:
Karabelas, Elias, Gsell, Matthias A. F., Augustin, Christoph M., Marx, Laura, Neic, Aurel, Prassl, Anton J., Goubergrits, Leonid, Kuehne, Titus, Plank, Gernot
Publikováno v:
Frontiers in Physiology, 9(5), pages 1-20, 2018
Computational fluid dynamics (CFD) models of blood flow in the left ventricle (LV) and aorta are important tools for analyzing the mechanistic links between myocardial deformation and flow patterns. Typically, the use of image-based kinematic CFD mod
Externí odkaz:
http://arxiv.org/abs/1901.05339
Autor:
Gsell, Matthias A. F., Augustin, Christoph M., Prassl, Anton J., Karabelas, Elias, Fernandes, Joao F., Kelm, Marcus, Goubergrits, Leonid, Kuehne, Titus, Plank, Gernot
Publikováno v:
International Journal for Numerical Methods in Biomedical Engineering, 34(12), pages e3147, 2018
Introduction: Stenotic aortic valve disease (AS) causes pressure overload of the left ventricle (LV) that may trigger adverse remodeling and precipitate progression towards heart failure (HF). As myocardial energetics can be impaired during AS, LV wa
Externí odkaz:
http://arxiv.org/abs/1901.05337
Autor:
Goubergrits, Leonid1,2 (AUTHOR), Schafstedde, Marie1,2 (AUTHOR), Cesarovic, Nikola3 (AUTHOR), Szengel, Angelika4 (AUTHOR), Schmitt, Boris1,2 (AUTHOR), Wiegand, Moritz1,2 (AUTHOR), Romberg, Jan5 (AUTHOR), Arndt, Andreas5 (AUTHOR), Kuehne, Titus1,2 (AUTHOR), Brüning, Jan1,2 (AUTHOR) Jan.bruening@dhzc-charite.de
Publikováno v:
Scientific Reports. 11/18/2023, Vol. 13 Issue 1, p1-13. 13p.
Autor:
Razafindrazaka, Faniry H., Yevtushenko, Pavlo, Poelke, Konstantin, Polthier, Konrad, Goubergrits, Leonid
A discrete boundary-sensitive Hodge decomposition is proposed as a central tool for the analysis of wall shear stress (WSS) vector fields in aortic blood flows. The method is based on novel results for the smooth and discrete Hodge-Morrey-Friedrichs
Externí odkaz:
http://arxiv.org/abs/1808.01998
Akademický článek
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Publikováno v:
Artificial Organs; May2024, Vol. 48 Issue 5, p495-503, 9p
Akademický článek
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Autor:
Walczak Lars, Goubergrits Leonid, Hüllebrand Markus, Georgii Joachim, Falk Volkmar, Hennemuth Anja
Publikováno v:
Current Directions in Biomedical Engineering, Vol 6, Iss 1, Pp 133-41 (2020)
We present a novel approach to simulate deformation in aortic valve replacement scenarios with applications in operation planning and batch domain creation for large computational fluid dynamics studies of the aortic arch.
Externí odkaz:
https://doaj.org/article/0162e676b29e49ff9f8fa5ed0fbf0e6c