105 citations · 250 across the 21 of their papers we have counts for
24 papers
DeboRheo v2.0: Improved Robustness for Geometrical VOF Simulations of Viscoelastic Two-Phase Flows
Daulet Izbassarov, Matthias Niethammer, Rahul Subburaj +5
We present DeboRheo v2.0, an unstructured, geometrically unsplit Volume-of-Fluid framework implemented in OpenFOAM for viscoelastic two-phase flows. Version 2.0 improves numerical…
acousticHelmholtzFoam: an MPI-parallel unstructured finite-volume solver for frequency-domain acoustics in heterogeneous two-phase media with perfectly matched layers
Chuanchao Xu, Jun Liu, Dieter Bothe +1
acousticHelmholtzFoam is an OpenFOAM application that computes time-harmonic acoustic pressure fields in heterogeneous gas-liquid media on unstructured polyhedral meshes. The compl…
An unstructured finite-volume Helmholtz method with perfectly matched layers for heterogeneous two-phase acoustics
Chuanchao Xu, Jun Liu, Jan Helge Dörsam +4
This paper presents a cell-centred unstructured finite-volume method for time-harmonic two-phase acoustics. A volume-fraction representation supplies density and acoustic compressi…
Non-intrusive MEMS microphone sensing of acoustic field state in resonant acoustic levitators
Jan H. Dörsam, Maximilian L. Amberg, Sven Suppelt +6
Reliable operation of resonant acoustic levitators requires knowledge of the acoustic field state because the optimum transducer-reflector distance and resonant operating condition…
The initial acceleration of a buoyant spherical bubble revisited
Dieter Bothe, Jun Liu, Pierre-Etienne Druet +3
An analytical derivation of the buoyancy-induced initial acceleration of a spherical gas bubble in a host liquid is presented. The theory makes no assumptions further than applying…
twoPhaseInterTrackFoam: an OpenFOAM module for Arbitrary Lagrangian/Eulerian Interface Tracking with Surfactants and Subgrid-Scale Modeling
Moritz Schwarzmeier, Suraj Raju, Željko Tuković +3
We provide an implementation of the unstructured Finite-Volume Arbitrary Lagrangian / Eulerian (ALE) Interface-Tracking method for simulating incompressible, immiscible two-phase f…
Combining Machine Learning with Computational Fluid Dynamics using OpenFOAM and SmartSim
Tomislav Maric, Mohammed Elwardi Fadeli, Alessandro Rigazzi +2
Combining machine learning (ML) with computational fluid dynamics (CFD) opens many possibilities for improving simulations of technical and natural systems. However, CFD+ML algorit…
Bridging the scales in capillary rise dynamics with complexity-reduced models
Mathis Fricke, Suraj Raju, El Assad Ouro-Koura +5
Dynamic wetting processes inherently manifest as multiscale phenomena. While the capillary length is typically millimeters, solid-liquid interactions occur at the nanometer scale.…
Analytical and numerical validation of a plate-plate tribometer for measuring wall slip
Muhammad Hassan Asghar, Tomislav Maric, Houssem Ben Gozlen +5
We model the Darmstadt Slip Length Tribometer (DSLT), specially designed to measure viscosity and slip length simultaneously for lubrication gaps in the range of approximately 10 m…
An unstructured geometrical un-split VOF method for viscoelastic two-phase flows
Matthias Niethammer, Muhammad Hassan Asghar, Tomislav Maric +1
Since viscoelastic two-phase flows arise in various industrial and natural processes, developing accurate and efficient software for their detailed numerical simulation is a highly…
A pragmatic workflow for research software engineering in computational science
Tomislav Marić, Dennis Gläser, Jan-Patrick Lehr +4
University research groups in Computational Science and Engineering (CSE) generally lack dedicated funding and personnel for Research Software Engineering (RSE), which, combined wi…
Stabilizing the unstructured Volume-of-Fluid method for capillary flows in microstructures using artificial viscosity
Luise Nagel, Anja Lippert, Tobias Tolle +3
Parasitic currents still pose a significant challenge for the investigation of two-phase flow in Lab-on-Chip (LoC) applications with Volume-of-Fluid (VoF) simulations. To counter t…
Numerical wetting benchmarks -- advancing the plicRDF-isoAdvector unstructured Volume-of-Fluid (VOF) method
Muhammad Hassan Asghar, Mathis Fricke, Dieter Bothe +1
The numerical simulation of wetting and dewetting of geometrically complex surfaces benefits from unstructured numerical methods because they discretize the domain with second-orde…
A benchmark for surface-tension-driven incompressible two-phase flows
Anja Lippert, Tobias Tolle, Aaron Dörr +1
The Volume-of-Fluid (VoF) method for simulating incompressible two-phase flows is widespread in academic and commercial simulation software because of its many advantages: a high d…
A Research Software Engineering Workflow for Computational Science and Engineering
Tomislav Maric, Dennis Gläser, Jan-Patrick Lehr +4
University research groups in Computational Science and Engineering (CSE) generally lack dedicated funding and personnel for Research Software Engineering (RSE), which, combined wi…
A locally signed-distance preserving level set method (SDPLS) for moving interfaces
Mathis Fricke, Tomislav Marić, Aleksandar Vučković +2
It is well-known that the standard level set advection equation does not preserve the signed distance property, which is a desirable property for the level set function representin…
An unstructured finite-volume level set / front tracking method for two-phase flows with large density-ratios
Jun Liu, Tobias Tolle, Dieter Bothe +1
We extend the unstructured LEvel set / froNT tracking (LENT) method for handling two-phase flows with strongly different densities (high-density ratios) by providing the theoretica…
Computing hydrodynamic eigenmodes of channel flow with slip -- A highly accurate algorithm
S. Raju, D. Gründing, T. Marić +2
The transient start-up flow solution with slip is a useful tool to verify Computational Fluid Dynamics (CFD) simulations. However, a highly accurate, open-source black box solution…
Computing volume fractions and signed distances from triangulated surfaces immersed in unstructured meshes
Tobias Tolle, Dirk Gründing, Dieter Bothe +1
Available algorithms for the initialization of volume fractions typically utilize exact functions to model fluid interfaces, or they rely on computationally costly intersections be…
Iterative Volume-of-Fluid interface positioning in general polyhedrons with Consecutive Cubic Spline interpolation
Tomislav Maric
A straightforward and computationally efficient Consecutive Cubic Spline (CCS) iterative algorithm is proposed for positioning the planar interface of the unstructured geometrical…
Unstructured un-split geometrical Volume-of-Fluid methods -- A review
Tomislav Maric, Douglas B. Kothe, Dieter Bothe
Geometrical Volume-of-Fluid (VoF) methods mainly support structured meshes, and only a small number of contributions in the scientific literature report results with unstructured m…
SAAMPLE: A Segregated Accuracy-driven Algorithm for Multiphase Pressure-Linked Equations
Tobias Tolle, Dieter Bothe, Tomislav Maric
Existing hybrid Level Set / Front Tracking methods have been developed for structured meshes and successfully used for efficient and accurate simulations of complex multiphase flow…
Contact line advection using the geometrical Volume-of-Fluid method
Mathis Fricke, Tomislav Marić, Dieter Bothe
We consider the interface advection problem by a prescribed velocity field in the special case when the interface intersects the domain boundary, i.e. in the presence of a contact…
voFoam - A geometrical Volume of Fluid algorithm on arbitrary unstructured meshes with local dynamic adaptive mesh refinement using OpenFOAM
Tomislav Maric, Holger Marschall, Dieter Bothe
A new parallelized unsplit geometrical Volume of Fluid (VoF) algorithm with support for arbitrary unstructured meshes and dynamic local Adaptive Mesh Refinement (AMR), as well as f…