Operator differential-algebraic equations arising in fluid dynamics

E Emmrich, V Mehrmann - Computational Methods in Applied …, 2013 - degruyter.com
Existence and uniqueness of generalized solutions to initial value problems for a class of
abstract differential-algebraic equations (DAEs) is shown. The class of equations covers, in …

[HTML][HTML] DecTree v1. 0–chemistry speedup in reactive transport simulations: purely data-driven and physics-based surrogates

M De Lucia, M Kühn - Geoscientific Model Development, 2021 - gmd.copernicus.org
The computational costs associated with coupled reactive transport simulations are mostly
due to the chemical subsystem: replacing it with a pre-trained statistical surrogate is a …

[图书][B] Regularization and simulation of constrained partial differential equations

R Altmann - 2015 - search.proquest.com
Die vorliegende Arbeit beschäftigt sich mit der Regularisierung von differentiell-
algebraischen Gleichungen (DAEs) abstrakter Funktionen. Diese sogenannten Operator …

[图书][B] Temporal discretization of constrained partial differential equations

C Zimmer - 2021 - search.proquest.com
This thesis is devoted to the application and analysis of time integration schemes for
differential-algebraic equations (DAEs) stated in (abstract) Banach spaces. The existence …

[HTML][HTML] Polytopic autoencoders with smooth clustering for reduced-order modeling of flows

J Heiland, Y Kim - Journal of Computational Physics, 2025 - Elsevier
With the advancement of neural networks, there has been a notable increase, both in terms
of quantity and variety, in research publications concerning the application of autoencoders …

[PDF][PDF] Decoupling and optimization of differential-algebraic equations with application in flow control

J Heiland - 2014 - depositonce.tu-berlin.de
A class of abstract differential-algebraic equations is considered as they occur, eg, in the
modelling of flows. We derive a functional-analytic framework for the analysis of the structure …

Runge-Kutta methods for linear semi-explicit operator differential-algebraic equations

R Altmann, C Zimmer - Mathematics of Computation, 2018 - ams.org
As a first step towards time-stepping schemes for constrained PDE systems, this paper
presents convergence results for the temporal discretization of operator DAEs. We consider …

Polytopic Autoencoders with Smooth Clustering for Reduced-order Modelling of Flows

J Heiland, Y Kim - arXiv preprint arXiv:2401.10620, 2024 - arxiv.org
With the advancement of neural networks, there has been a notable increase, both in terms
of quantity and variety, in research publications concerning the application of autoencoders …

Numerical simulation for moving contact line with continuous finite element schemes

Y Jiang, P Lin, Z Guo, S Dong - Communications in Computational …, 2015 - cambridge.org
In this paper, we compute a phase field (diffuse interface) model of Cahn-Hilliard type for
moving contact line problems governing the motion of isothermal multiphase incompressible …

[HTML][HTML] No pressure? Energy-consistent ROMs for the incompressible Navier-Stokes equations with time-dependent boundary conditions

H Rosenberger, B Sanderse - Journal of Computational Physics, 2023 - Elsevier
This work presents a novel reduced-order model (ROM) for the incompressible Navier-
Stokes equations with time-dependent boundary conditions. This ROM is velocity-only, ie …