43 citations · 193 across the 23 of their papers we have counts for
23 papers
Beyond the Cassie-Baxter Model: New Insights for Predicting Imbibition in Complex Systems
Mathis Fricke, Lisanne Gossel, Joel De Coninck
We revisit the classical problem of liquid imbibition in a single pore with spatially varying wettability. Starting from the Lucas-Washburn equation, we derive analytical solutions…
A consistent treatment of dynamic contact angles in the sharp-interface framework with the generalized Navier boundary condition
Tomas Fullana, Yash Kulkarni, Mathis Fricke +4
In this work, we revisit the Generalized Navier Boundary condition (GNBC) introduced by Qian et al.\ in the sharp interface Volume-of-Fluid context. We replace the singular uncompe…
On the problem of optimal fluid transport in capillaries
Mathis Fricke, Clara Bernklau, Elisabeth Diehl +3
In this note, we revisit the problem of the pressure-driven transport of a meniscus through a narrow cylindrical capillary or pore. This generic process finds many applications in…
Scale-bridging within a complex model hierarchy for investigation of a metal-fueled circular energy economy by use of Bayesian model calibration with model error quantification
Lisanne Gossel, Elisa Corbean, Sören Dübal +7
Metal energy carriers recently gained growing interest in research as a promising storage and transport material for renewable electricity. Within the development of a metal-fueled…
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…
Experimental study of dynamic wetting behavior through curved microchannels with automated image analysis
Huijie Zhang, Anja Lippert, Ronny Leonhardt +4
Preventing fluid penetration poses a challenging reliability concern in the context of power electronics, which is usually caused by unforeseen microfractures along the sealing joi…
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.…
Imaging and simulation-based analysis of evaporation flows over wetting edges
Suraj Raju, Felix Braig, Mathis Fricke +4
We monitor the evaporation of a volatile liquid (ethanol) from an inkjet-printed liquid film, consisting of a mixture of ethanol and ethylene glycol. Interferometric video imaging…
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…
Mathematical analysis of modified level-set equations
Dieter Bothe, Mathis Fricke, Kohei Soga
The linear transport equation allows to advect level-set functions to represent moving sharp interfaces in multiphase flows as zero level-sets. A recent development in computationa…
Spreading of a viscoelastic drop on a solid substrate
Peyman Rostami, Mathis Fricke, Simon Schubotz +3
We study the spreading of viscous and viscoelastic drops on solid substrates with different wettability. In the early stages of spreading, we find that the viscoelastic drop spread…
Studying Macro- and Mesoscopic Wetting Dynamics of a Spreading Oil Droplet Using Multiple Wavelength Interferometry
Timo Richter, Mathis Fricke, Peter Stephan +2
In this study we present an interferometric technique based on multiple wavelengths to capture the transient free surface contour of nanoliter drops spreading on a wettable surface…
Enhanced Modeling of Back-Mixing in Chemical Reactor Networks
Lisanne Gossel, Mathis Fricke, Dieter Bothe
Chemical reactor networks (CRNs) enable simulations of combustion reactors with detailed chemical kinetics and strongly simplified flow structure. In this paper, the implementation…
An analytical study of capillary rise dynamics: Critical conditions and hidden oscillations
Mathis Fricke, El Assad Ouro-Koura, Suraj Raju +3
The rise of a liquid column inside a thin capillary against the action of gravity is a prototypical example of a dynamic wetting process and plays an important role for application…
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 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…
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…
A geometry-based model for spreading drops applied to drops on a silicon wafer and a swellable polymer brush film
Mathis Fricke, Beatrice Fickel, Maximilian Hartmann +3
We investigate the dynamics of spreading in a regime where the shape of the drop is close to a spherical cap. The latter simplification is applicable in the late (viscous) stage of…
Boundary conditions for dynamic wetting -- A mathematical analysis
Mathis Fricke, Dieter Bothe
The moving contact line paradox discussed in the famous paper by Huh and Scriven has lead to an extensive scientific discussion about singularities in continuum mechanical models o…
Breakup Dynamics of Capillary Bridges on Hydrophobic Stripes
Maximilian Hartmann, Mathis Fricke, Lukas Weimar +4
The breakup dynamics of a capillary bridge on a hydrophobic stripe between two hydrophilic stripes is studied experimentally and numerically using direct numerical simulations. The…
Capillary Rise -- A Computational Benchmark for Wetting Processes
D. Gründing, M. Smuda, T. Antritter +6
Four different numerical approaches are compared for the rise of liquid between two parallel plates. These are an Arbitrary Lagrangian-Eulerian method (OpenFOAM solver interTrackFo…
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…
A Kinematic Evolution Equation for the Dynamic Contact Angle and some Consequences
Mathis Fricke, Matthias Köhne, Dieter Bothe
We investigate the moving contact line problem for two-phase incompressible flows with a kinematic approach. The key idea is to derive an evolution equation for the contact angle i…