Mehrnia, Seyedmajid ; Pelz, Peter F. (2023)
Tribological Design by Molecular Dynamics Simulation: Influence of the Molecular Structure on Wall Slip and Bulk Shear.
In: Chemical Engineering & Technology, 2023, 46 (1)
doi: 10.26083/tuprints-00023722
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
The tribological properties of a complex branched‐hydrocarbon oil under shear in a gap between smooth iron atom surfaces were studied by large‐scale molecular dynamics (MD) simulation. The liquid was a nonpolar lubricant, i.e. a polyalphaolefin (PAO) oil mixture of 1‐decane dimer, trimer, and tetramer molecules. The rheological characteristics of the lubricant, including the shear stress and viscosity as well as the relaxation time of the liquid molecule, were calculated. The results show that, as the number of branches of the liquid molecule increases, the shear stresses and the wall slip increase. However, for a mixture fluid containing three different branched molecules, the wall slip decreases in comparison to a liquid consisting of only one kind of branched molecule.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Mehrnia, Seyedmajid ; Pelz, Peter F. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Tribological Design by Molecular Dynamics Simulation: Influence of the Molecular Structure on Wall Slip and Bulk Shear |
| Sprache: | Englisch |
| Publikationsjahr: | 24 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemical Engineering & Technology |
| Jahrgang/Volume einer Zeitschrift: | 46 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.26083/tuprints-00023722 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23722 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The tribological properties of a complex branched‐hydrocarbon oil under shear in a gap between smooth iron atom surfaces were studied by large‐scale molecular dynamics (MD) simulation. The liquid was a nonpolar lubricant, i.e. a polyalphaolefin (PAO) oil mixture of 1‐decane dimer, trimer, and tetramer molecules. The rheological characteristics of the lubricant, including the shear stress and viscosity as well as the relaxation time of the liquid molecule, were calculated. The results show that, as the number of branches of the liquid molecule increases, the shear stresses and the wall slip increase. However, for a mixture fluid containing three different branched molecules, the wall slip decreases in comparison to a liquid consisting of only one kind of branched molecule. |
| Freie Schlagworte: | Liquid films, Polyalphaolefins, Shear flows, Slip velocity, Viscosity |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-237223 |
| Zusätzliche Informationen: | Special Issue: Digital, Reliable, Sustainable – Recent Innovations in Fluid Power |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) |
| Hinterlegungsdatum: | 24 Nov 2023 14:03 |
| Letzte Änderung: | 27 Nov 2023 07:38 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Tribological Design by Molecular Dynamics Simulation: Influence of the Molecular Structure on Wall Slip and Bulk Shear. (deposited 24 Nov 2023 14:03) [Gegenwärtig angezeigt]
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