Wang, Yongqi ; Oberlack, Martin (2011)
A thermodynamic model of multiphase flows with moving interfaces and contact line.
In: Continuum Mechanics and Thermodynamics, 23 (5)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this paper, we develop a general continuum description for thermodynamic multiphase flows with intersecting dividing surfaces, and three-phase common contact line, taking the contribution of the excess surface and line thermodynamic quantities into account. Starting with the standard postulates of continuum mechanics and the general global balance statement for an arbitrary physical quantity in a physical domain of three bulk phases including singular material or non-material phase interfaces and a three-phase contact line, we derive, in addition to the classical local balance equations for each bulk phase, the local conservation equations on the phase interfaces and at the contact line. Then, these additional interface and line balance laws are specified for excess surface and line physical quantities, e.g., excess mass, momentum, angular momentum, energy, and entropy, respectively. Some simplified forms of these balance laws are also presented and discussed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Wang, Yongqi ; Oberlack, Martin |
| Art des Eintrags: | Bibliographie |
| Titel: | A thermodynamic model of multiphase flows with moving interfaces and contact line |
| Sprache: | Englisch |
| Publikationsjahr: | 2011 |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Continuum Mechanics and Thermodynamics |
| Jahrgang/Volume einer Zeitschrift: | 23 |
| (Heft-)Nummer: | 5 |
| URL / URN: | http://dx.doi.org/10.1007/s00161-011-0186-9 |
| Kurzbeschreibung (Abstract): | In this paper, we develop a general continuum description for thermodynamic multiphase flows with intersecting dividing surfaces, and three-phase common contact line, taking the contribution of the excess surface and line thermodynamic quantities into account. Starting with the standard postulates of continuum mechanics and the general global balance statement for an arbitrary physical quantity in a physical domain of three bulk phases including singular material or non-material phase interfaces and a three-phase contact line, we derive, in addition to the classical local balance equations for each bulk phase, the local conservation equations on the phase interfaces and at the contact line. Then, these additional interface and line balance laws are specified for excess surface and line physical quantities, e.g., excess mass, momentum, angular momentum, energy, and entropy, respectively. Some simplified forms of these balance laws are also presented and discussed. |
| Freie Schlagworte: | Multiphase flows; Three-phase contact line; Surface balance equations; Line balance equations |
| Zusätzliche Informationen: | DIO: 10.1007/s00161-011-0186-9 |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy) 16 Fachbereich Maschinenbau |
| Hinterlegungsdatum: | 24 Aug 2011 18:19 |
| Letzte Änderung: | 17 Feb 2014 08:46 |
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