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Direct Numerical Simulation of dynamic droplet wetting on superhydrophobic substrates by means of a diffuse-interface phase-field method using OpenFOAM

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dc.contributor.author Holzinger, Michael
dc.date.accessioned 2021-04-12T11:27:17Z
dc.date.available 2021-04-12T11:27:17Z
dc.date.created 2021
dc.date.issued 2021-04-12
dc.description Master Thesis of Michael Holzinger. The dynamic wetting process and shape evolution of a droplet impacting perpendicular on a planar, plain and super-hydrophobic substrate are investigated by means of direct numerical simulation of an immiscible and isothermal binary fluid system. A diffuse-interface phase-field method is used, where the Cahn-Hilliard equation, describing the evolution of the phase-field parameter, is coupled with the Navier Stokes system. The model parameter of the phase-field method are the capillary width, the mobility, the mixing energy parameter and the equilibrium contact angle on fluid-solid boundaries. The mixing energy parameter model will be extended in this work in order to deal with dynamic out-of-equilibrium behavior of the diffuse-interface on a local scope. 2D-axis-symmetric simulations in combination with adaptive mesh refinement will be performed, the latter allowing for an immense reduction of control volumes far from the diffuse-interface. (...) For all simulations different mixing energy parameters models are compared with each other. en_US
dc.identifier.uri https://tudatalib.ulb.tu-darmstadt.de/handle/tudatalib/2689
dc.identifier.uri https://doi.org/10.48328/tudatalib-473
dc.language.iso en en_US
dc.rights Creative Commons Attribution Share-Alike 4.0
dc.rights.licenseother
dc.rights.uri https://creativecommons.org/licenses/by-sa/4.0/
dc.subject phase-field method en_US
dc.subject diffuse interface model en_US
dc.subject droplet rebound en_US
dc.subject droplet wetting en_US
dc.subject superhydrophobic substrate en_US
dc.subject.classification 3.31-01
dc.subject.classification 4.22-03
dc.subject.ddc 510
dc.subject.ddc 620
dc.title Direct Numerical Simulation of dynamic droplet wetting on superhydrophobic substrates by means of a diffuse-interface phase-field method using OpenFOAM en_US
dc.type Text en_US
dc.type Software en_US
dcterms.accessRights openAccess
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
tuda.history.classification Version=2020-2024;312-01 Mathematik
tuda.history.classification Version=2020-2024;404-03 Strömungsmechanik
tuda.unit TUDa

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Phase-Field Method in OpenFOAM (FOAM-extend)