Zhou, D. W. ; Gambaryan-Roisman, Tatiana ; Stephan, Peter (2009)
Measurement of water falling film thickness to flat plate using confocal chromatic sensoring technique.
In: Experimental Thermal and Fluid Science, 33 (2)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
An experimental investigation of wavy water film falling down a flat plate has been carried out using confocal chromatic sensoring technique to determine the instantaneous and statistical characteristics of the film. The experiments involved three parameters: liquid feed mode, Reynolds number and plate inclination angle. The present time--average film thickness data is compared with the previous experimental and theoretical results showing a good agreement. A new correlation for the average film thickness is suggested. Our results show that the liquid feed mode has a vital influence on the film thickness and that the film thickness increases with Reynolds number and decreased plate inclination angle. The root--mean--square value of the film thickness fluctuations depends non-monotonically on the film Reynolds number. The corresponding mechanisms are analyzed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Zhou, D. W. ; Gambaryan-Roisman, Tatiana ; Stephan, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Measurement of water falling film thickness to flat plate using confocal chromatic sensoring technique |
| Sprache: | Englisch |
| Publikationsjahr: | 2009 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Experimental Thermal and Fluid Science |
| Jahrgang/Volume einer Zeitschrift: | 33 |
| (Heft-)Nummer: | 2 |
| URL / URN: | http://dx.doi.org/10.1016/j.expthermflusci.2008.09.003 |
| Kurzbeschreibung (Abstract): | An experimental investigation of wavy water film falling down a flat plate has been carried out using confocal chromatic sensoring technique to determine the instantaneous and statistical characteristics of the film. The experiments involved three parameters: liquid feed mode, Reynolds number and plate inclination angle. The present time--average film thickness data is compared with the previous experimental and theoretical results showing a good agreement. A new correlation for the average film thickness is suggested. Our results show that the liquid feed mode has a vital influence on the film thickness and that the film thickness increases with Reynolds number and decreased plate inclination angle. The root--mean--square value of the film thickness fluctuations depends non-monotonically on the film Reynolds number. The corresponding mechanisms are analyzed. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster Zentrale Einrichtungen Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI) |
| Hinterlegungsdatum: | 17 Mär 2015 14:36 |
| Letzte Änderung: | 08 Aug 2019 13:31 |
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