Variational data assimilation for transient blood flow simulations: Cerebral aneurysms as an illustrative example

SW Funke, M Nordaas, Ø Evju… - … journal for numerical …, 2019 - Wiley Online Library
Several cardiovascular diseases are caused from localised abnormal blood flow such as in
the case of stenosis or aneurysms. Prevailing theories propose that the development is …

Boundary control in computational haemodynamics

TS Koltukluoğlu, PJ Blanco - Journal of Fluid Mechanics, 2018 - cambridge.org
In this work, a data assimilation method is proposed following an optimise-then-discretise
approach, and is applied in the context of computational haemodynamics. The methodology …

[PDF][PDF] Multigoal-oriented a posteriori error control for heated material processing using a generalized Boussinesq model

S Beuchler, B Endtmayer… - Comptes …, 2023 - comptes-rendus.academie-sciences …
In this work, we develop a posteriori error control for a generalized Boussinesq model in
which thermal conductivity and viscosity are temperature-dependent. Therein, the stationary …

A velocity tracking approach for the data assimilation problem in blood flow simulations

J Tiago, T Guerra, A Sequeira - International journal for …, 2017 - Wiley Online Library
Several advances have been made in data assimilation techniques applied to blood flow
modeling. Typically, idealized boundary conditions, only verified in straight parts of the …

A data assimilation approach for non-Newtonian blood flow simulations in 3D geometries

T Guerra, C Catarino, T Mestre, S Santos… - Applied Mathematics …, 2018 - Elsevier
Blood flow simulations can play an important role in medical training and diagnostic
predictions associated to several pathologies of the cardiovascular system. The main …

Fourier spectral dynamic data assimilation: interlacing CFD with 4D flow MRI

TS Koltukluoğlu - Medical Image Computing and Computer Assisted …, 2019 - Springer
Most data assimilation studies, incorporating observations into computational blood flow
simulations, have approached the problem exploiting the traditional mathematical …

A saddle point approach to an optimal boundary control problem for steady Navier-Stokes equations

A Manzoni, A Quarteroni, S Salsa - Mathematics in Engineering, 2019 - infoscience.epfl.ch
In this paper we propose a saddle point approach to solve boundary control problems for the
steady Navier-Stokes equations with mixed Dirichlet-Neumann boundary conditions, both in …

An optimal boundary control problem related to the time dependent Navier-Stokes equations

T Guerra, I Marín-Gayte, J Tiago - arXiv preprint arXiv:2407.12561, 2024 - arxiv.org
In this work, we study a boundary control problem for the evolutionary Navier-Stokes
equations, under mixed boundary conditions, in two dimensions. The cost functional here …

Optimal Boundary Control Problem for the Stokes Equation in Cardiovascular Applications

I Marín-Gayte - 2024 - preprints.org
In this work, we study a boundary control problem for the evolutionary Stokes equations,
under mixed boundary conditions, in two and three dimensions. The Stokes equation is a …

[PDF][PDF] Comptes Rendus Mécanique

S Beuchler, B Endtmayer, J Lankeit, T Wick - core.ac.uk
In this work, we develop a posteriori error control for a generalized Boussinesq model in
which thermal conductivity and viscosity are temperature-dependent. Therein, the stationary …