Budakli, Mete ; Gambaryan-Roisman, Tatiana ; Stephan, Peter (2024)
Influence of Surface Topography on Heat Transfer in Shear-Driven Liquid Films.
In: Journal of Physics: Conference Series, 2012, 395 (1)
doi: 10.26083/tuprints-00020794
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Thin gas-driven liquid films find numerous industrial applications. They are used for fuel preparation in airblast atomizers of modern gas turbines. Strong shear forces at the gas-liquid interface destabilize the liquid-gas interface and lead to development of interfacial waves. In this study, the heat transfer in liquid films driven by turbulent gas flow is investigated experimentally over a wide range of parameters. A liquid film is formed on vertical heated unstructured and micro-structured tubes. The Reynolds number of the gas flow is varied between 10⁴ and 10⁵, and the Reynolds number of the liquid film flow is varied between 80 and 800. Wall heat fluxes up to 30 W/cm² are applied. The heat transfer coefficient strongly depends on the gas and liquid Reynolds numbers. Using the micro-structured tube leads to a heat transfer enhancement of up to 80 %.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Budakli, Mete ; Gambaryan-Roisman, Tatiana ; Stephan, Peter |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Influence of Surface Topography on Heat Transfer in Shear-Driven Liquid Films |
| Sprache: | Englisch |
| Publikationsjahr: | 6 Februar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2012 |
| Ort der Erstveröffentlichung: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 395 |
| (Heft-)Nummer: | 1 |
| Kollation: | 9 Seiten |
| DOI: | 10.26083/tuprints-00020794 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20794 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Thin gas-driven liquid films find numerous industrial applications. They are used for fuel preparation in airblast atomizers of modern gas turbines. Strong shear forces at the gas-liquid interface destabilize the liquid-gas interface and lead to development of interfacial waves. In this study, the heat transfer in liquid films driven by turbulent gas flow is investigated experimentally over a wide range of parameters. A liquid film is formed on vertical heated unstructured and micro-structured tubes. The Reynolds number of the gas flow is varied between 10⁴ and 10⁵, and the Reynolds number of the liquid film flow is varied between 80 and 800. Wall heat fluxes up to 30 W/cm² are applied. The heat transfer coefficient strongly depends on the gas and liquid Reynolds numbers. Using the micro-structured tube leads to a heat transfer enhancement of up to 80 %. |
| ID-Nummer: | Artikel-ID: 012164 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-207945 |
| Zusätzliche Informationen: | 6th European Thermal Sciences Conference (Eurotherm 2012) 4–7 September 2012, Poitiers, France |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI) |
| Hinterlegungsdatum: | 06 Feb 2024 10:34 |
| Letzte Änderung: | 07 Feb 2024 06:49 |
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| Suche nach Titel in: | TUfind oder in Google |
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