K
Kristian Valen-Sendstad
Researcher at Simula Research Laboratory
Publications - 46
Citations - 1420
Kristian Valen-Sendstad is an academic researcher from Simula Research Laboratory. The author has contributed to research in topics: Aneurysm & Computational fluid dynamics. The author has an hindex of 19, co-authored 40 publications receiving 1152 citations. Previous affiliations of Kristian Valen-Sendstad include University of Oslo & University of Toronto.
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Journal ArticleDOI
Mind the Gap: Impact of Computational Fluid Dynamics Solution Strategy on Prediction of Intracranial Aneurysm Hemodynamics and Rupture Status Indicators
TL;DR: Typical computational fluid dynamics solution strategies may ultimately be adequate for augmenting rupture risk assessment on the basis of certain highly reduced indices; however, they cannot be relied on for predicting the magnitude and character of the complex biomechanical stimuli to which the aneurysm wall may be exposed.
Journal ArticleDOI
Variability of computational fluid dynamics solutions for pressure and flow in a giant aneurysm: the ASME 2012 Summer Bioengineering Conference CFD Challenge.
David A. Steinman,Yiemeng Hoi,Paul Fahy,Liam Morris,Michael Walsh,Nicolas Aristokleous,Andreas S. Anayiotos,Yannis Papaharilaou,Amirhossein Arzani,Shawn C. Shadden,Philipp Berg,Philipp Berg,Gábor Janiga,Joris Bols,Patrick Segers,Neil W. Bressloff,Merih Cibis,Frank H. Gijsen,Salvatore Cito,Jordi Pallares,Leonard D. Browne,J. A. Costelloe,Adrian G. Lynch,Joris Degroote,Jan Vierendeels,Wenyu Fu,Aike Qiao,Simona Hodis,David F. Kallmes,Hardeep S. Kalsi,Quan Long,Vitaly O. Kheyfets,Ender A. Finol,Kenichi Kono,Adel M. Malek,Alexandra Lauric,Prahlad G. Menon,Kerem Pekkan,Mahdi Esmaily Moghadam,Alison L. Marsden,Marie Oshima,Kengo Katagiri,Véronique Peiffer,Yumnah Mohamied,Spencer J. Sherwin,Jens Schaller,Leonid Goubergrits,Gabriel Usera,Mariana Mendina,Kristian Valen-Sendstad,Damiaan F. Habets,Jianping Xiang,Hui Meng,Yue Yu,George Em Karniadakis,Nicholas Shaffer,Francis Loth +56 more
TL;DR: Pressure can be predicted with consistency by CFD across a wide range of solvers and solution strategies, but this may not hold true for specific flow patterns or derived quantities.
Journal ArticleDOI
Direct numerical simulation of transitional flow in a patient-specific intracranial aneurysm
Kristian Valen-Sendstad,Kristian Valen-Sendstad,Kent-Andre Mardal,Kent-Andre Mardal,Mikael Mortensen,Bjørn Anders Pettersson Reif,Hans Petter Langtangen,Hans Petter Langtangen +7 more
TL;DR: This study confirms, through properly resolved CFD simulations that turbulence can occur in intracranial aneurysms, and greatly affected both the frequency of change of wall shear stress (WSS) direction and WSS magnitude.
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The Computational Fluid Dynamics Rupture Challenge 2013--Phase II: Variability of Hemodynamic Simulations in Two Intracranial Aneurysms.
Philipp Berg,Christoph Roloff,Oliver Beuing,Samuel Voss,Shin Ichiro Sugiyama,Nicolas Aristokleous,Andreas S. Anayiotos,Neil Ashton,Alistair Revell,Neil W. Bressloff,Alistair G. Brown,Bong Jae Chung,Juan R. Cebral,Gabriele Copelli,Wenyu Fu,Aike Qiao,A. J. Geers,Simona Hodis,Simona Hodis,Dan Dragomir-Daescu,Dan Dragomir-Daescu,Emily R. Nordahl,Yildirim Suzen,Muhammad Owais Khan,Kristian Valen-Sendstad,Kenichi Kono,Prahlad G. Menon,Priti G. Albal,Otto Mierka,Raphael Münster,Hernán G. Morales,Odile Bonnefous,Jan Osman,Leonid Goubergrits,Jordi Pallares,Salvatore Cito,Alberto Passalacqua,Senol Piskin,Kerem Pekkan,Susana Ramalho,Nelson Marques,Stéphane Sanchi,Kristopher R. Schumacher,Jess Sturgeon,Helena Švihlová,Jaroslav Hron,Gabriel Usera,Mariana Mendina,Jianping Xiang,Hui Meng,David A. Steinman,Gábor Janiga +51 more
TL;DR: The International CFD Rupture Challenge 2013 seeks to comment on the sensitivity of these various CFD assumptions to predict the rupture by undertaking a comparison of the rupture and blood-flow predictions from a wide range of independent participants utilizing a range of CFD approaches.
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High-resolution computational fluid dynamics detects flow instabilities in the carotid siphon: Implications for aneurysm initiation and rupture?
TL;DR: The findings suggest that the carotid siphon, a conduit to the majority of anterior intracranial aneurysms, may experience flow instabilities, consistent with in vitro reports, but seemingly at odds with themajority of CFD studies, which have been done at lower resolutions.