Best Practice Advice AC7-04: Difference between revisions
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=Best Practice Advice= | =Best Practice Advice= | ||
==Key Fluid Physics== | ==Key Fluid Physics== | ||
The flow considered in the CFD-4D MRI comparison has to reflect some properties found in the cardiovascular system. Thereby it is necessary to consider a pulsatile flow, with intermediate values of the Reynolds number within the laminar-turbulent range. Furthermore the geometry also has to be representative to study typical flow patterns. The present geometry allows to study typical flow in aneurysm, arch, flow split and flow merge. | |||
==Application Uncertainties== | ==Application Uncertainties== | ||
==Computational Domain and Boundary Conditions== | ==Computational Domain and Boundary Conditions== | ||
Revision as of 14:15, 26 July 2021
A pulsatile 3D flow relevant to thoracic hemodynamics: CFD - 4D MRI comparison
Application Challenge AC7-04 © copyright ERCOFTAC 2021
Best Practice Advice
Key Fluid Physics
The flow considered in the CFD-4D MRI comparison has to reflect some properties found in the cardiovascular system. Thereby it is necessary to consider a pulsatile flow, with intermediate values of the Reynolds number within the laminar-turbulent range. Furthermore the geometry also has to be representative to study typical flow patterns. The present geometry allows to study typical flow in aneurysm, arch, flow split and flow merge.
Application Uncertainties
Computational Domain and Boundary Conditions
Discretisation and Grid Resolution
Physical Modelling
Recommendations for Future Work
References
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[3] T. Puiseux, A. Sewonu, R. Moreno, S. Mendez, and F. Nicoud, “Numerical simulation of time-resolved 3d phase-contrast magnetic resonance imaging,” PLoS ONE, vol. 16, no. 3, p. e0248816, 2021.
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[10] S. Mendez and F. Nicoud, “YALES2BIO.” https://imag.umontpellier.fr/~yales2bio/, 2021. Accessed: 2021-06-25.
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[13] F. Nicoud, C. Chnafa, J. Sigüenza, V. Zmijanovic, and S. Mendez, Large-Eddy Simulation of Turbulence in Cardiovascular Flows, pp. 147–167. Cham: Springer International Publishing, 2018.
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[15] J. Sigüenza, S. Mendez, D. Ambard, F. Dubois, F. Jourdan, R. Mozul, and F. Nicoud, “Validation of an immersed thick boundary method for simulating fluid-structure interactions of deformable membranes,” Journal of Computational Physics, vol. 322, pp. 723– 746, 2016.
[16] S. Pope, Turbulent Flows. Cambridge University Press, 2000.
[17] A. Yoshizawa and K. Horiuti, “A statistically-derived subgrid-scale kinetic energy model for the large-eddy simulation of turbulent flows,“ Journal of the Physical Society of Japan, vol. 54, no. 8, pp. 2834–2839, 1985.
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Contributed by: Morgane Garreau — University of Montpellier, France
© copyright ERCOFTAC 2021