Browsing SINTEF Industri by Author "Dahl, Sigrid Kaarstad"
Now showing items 1-6 of 6
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Comparison of ultrasound vector flow imaging and CFD simulations with PIV measurements of flow in a left ventricular outflow trackt phantom - Implications for clinical use and in silico studies
Leinan, Paul Roger; Grønli, Thomas; Skjetne, Paal; Wigen, Morten Smedsrud; Urheim, Stig; Løvstakken, Lasse; Dahl, Sigrid Kaarstad (Peer reviewed; Journal article, 2022)In this study we have compared two modalities for flow quantification from measurement data; ultrasound (US) and shadow particle image velocimetry (PIV), and a flow simulation model using computational fluid dynamics (CFD). ... -
Patient Specific Numerical Simulation of Flow in the Human Upper Airways for Assessing the Effect of Nasal Surgery
Jordal, Maria Rolstad; Johnsen, Sverre Gullikstad; Dahl, Sigrid Kaarstad; Müller, Bernhard (SINTEF proceedings;2387-4295, Chapter; Peer reviewed, 2017)The study is looking into the potential of using computational fluid dynamics (CFD) as a tool for predicting the outcome of surgery for alleviation of obstructive sleep apnea syndrome (OSAS). From pre- and post-operative ... -
Simulation of gas-liquid flows in separators. A Lagrangian approach
Morud, John; Dahl, Sigrid Kaarstad (Chapter; Peer reviewed, 2017)In order to simulate the separation efficiency of gas scrubbers, we have formulated and implemented a version of the Single-Particle Method. The method is suitable for CFD simulations of gas-droplet flows, and is based on ... -
The effect of chordae tendineae on systolic flow
Morud, John; Skjetne, Paal; Urheim, Stig; Dahl, Sigrid Kaarstad (Journal article; Peer reviewed, 2019)When using Computational Fluid Dynamics to simulate ventricular blood flow in the heart, it has been common practice to neglect the effect of the sub-valvular apparatus and the trabeculae on the flow conditions. In this ... -
Towards a reduced order model for EVAR planning and intra-operative navigation
Emendi, Monica; Kardampiki, Eirini; Støverud, Karen-Helene; Martinez Pascual, Antonio; Geronzi, Leonardo; Dahl, Sigrid Kaarstad; Prot, Victorien Emile; Skjetne, Paal; Biancolini, Marco Evangelos (Peer reviewed; Journal article, 2024)The pre-operative planning and intra-operative navigation of the endovascular aneurysm repair (EVAR) procedure are currently challenged by the aortic deformations that occur due to the insertion of a stiff guidewire. Hence, ... -
Velocity profiles in a 2D model of the left ventricular outflow tract, pathological case study using PIV and CFD modeling
Leinan, Paul Roger; Skjetne, Paal; Morud, John; Urheim, Stig; Dahl, Sigrid Kaarstad (SINTEF proceedings;2387-4295, Chapter; Peer reviewed, 2017)In the current study, we present an experimental (in vitro) 2D flow model for studying blood flow in the human left ventricular outflow tract (LVOT) and the first part of the aorta using particle image velocimetry (PIV) ...