Diewald, Felix ; Heier, Michaela ; Lautenschläger, Martin ; Horsch, Martin ; Kuhn, Charlotte ; Langenbach, Kai ; Hasse, Hans ; Müller, Ralf (2019)
A Navier-Stokes-Korteweg Model for Dynamic Wetting based on the PeTS Equation of State.
In: PAMM, 19 (1)
doi: 10.1002/pamm.201900091
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Dynamic wetting of component surfaces can be investigated by finite element phase field simulations. Often these models use a double-well potential or the van der Waals equation to define the local part of the free energy density at a point of the computational domain. In order to give the present model a stronger physical background the molecular dynamics based perturbed Lennard-Jones truncated and shifted (PeTS) equation of state is used instead. This results in phase field liquid-vapor interfaces that agree with the physical density gradient between the two phases. In order to investigate dynamic scenarios, the phase field description is coupled to the compressible Navier-Stokes equations. This coupling requires a constitutive equation that complies with the surface tension of the liquid-vapor interface resulting from the PeTS equation of state and is comparable to the so-called Korteweg tensor.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Diewald, Felix ; Heier, Michaela ; Lautenschläger, Martin ; Horsch, Martin ; Kuhn, Charlotte ; Langenbach, Kai ; Hasse, Hans ; Müller, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | A Navier-Stokes-Korteweg Model for Dynamic Wetting based on the PeTS Equation of State |
| Sprache: | Englisch |
| Publikationsjahr: | 18 November 2019 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | PAMM |
| Jahrgang/Volume einer Zeitschrift: | 19 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1002/pamm.201900091 |
| URL / URN: | https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.2019000... |
| Kurzbeschreibung (Abstract): | Dynamic wetting of component surfaces can be investigated by finite element phase field simulations. Often these models use a double-well potential or the van der Waals equation to define the local part of the free energy density at a point of the computational domain. In order to give the present model a stronger physical background the molecular dynamics based perturbed Lennard-Jones truncated and shifted (PeTS) equation of state is used instead. This results in phase field liquid-vapor interfaces that agree with the physical density gradient between the two phases. In order to investigate dynamic scenarios, the phase field description is coupled to the compressible Navier-Stokes equations. This coupling requires a constitutive equation that complies with the surface tension of the liquid-vapor interface resulting from the PeTS equation of state and is comparable to the so-called Korteweg tensor. |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik > Fachgebiet Kontinuumsmechanik |
| Hinterlegungsdatum: | 04 Mai 2022 07:51 |
| Letzte Änderung: | 04 Mai 2022 07:51 |
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