no code implementations • 14 Jan 2022 • Marvin Fritz, Tobias Köppl, J. Tinsley Oden, Andreas Wagner, Barbara Wohlmuth, Chengyue Wu
In this work, we present mixed dimensional models for simulating blood flow and transport processes in breast tissue and the vascular tree supplying it.
no code implementations • 23 Jul 2021 • Brendan Keith, Ustim Khristenko, Barbara Wohlmuth
The DRD model can be calibrated with noisy data from field experiments.
no code implementations • 8 Feb 2021 • Markus Muhr, Vanja Nikolić, Barbara Wohlmuth
Inspired by medical applications of high-intensity ultrasound, we study a coupled elasto-acoustic problem with general acoustic nonlinearities of quadratic type as they arise, for example, in the Westervelt and Kuznetsov equations of nonlinear acoustics.
Numerical Analysis Numerical Analysis 65M12, 35L70
1 code implementation • 22 Jan 2021 • Marvin Fritz, Prashant K. Jha, Tobias Köppl, J. Tinsley Oden, Andreas Wagner, Barbara Wohlmuth
The flow in the blood vessels is controlled by Poiseuille flow, and Starling's law is applied to model the mass transfer in and out of blood vessels.
no code implementations • 7 Jan 2021 • Ustim Khristenko, Stefan Schuß, Melanie Krüger, Felix Schmidt, Barbara Wohlmuth, Christian Hesch
The choice of our discrete basis functions of higher regularity is motivated by the fact, that as a result of the static condensation, we obtain second gradient terms in fiber direction.
Computational Engineering, Finance, and Science
no code implementations • 7 Dec 2020 • Florian Beiser, Brendan Keith, Simon Urbainczyk, Barbara Wohlmuth
This method is applicable to a broad class of expectation-based risk measures and leads to a significant reduction in the individual gradient evaluations used to estimate the objective function gradient.
Stochastic Optimization Optimization and Control