Kyriopoulos, O. ; Roisman, Ilia V. ; Gambaryan-Roisman, Tatiana ; Stephan, Peter ; Tropea, Cameron (2008)
Dynamics of a liquid film produced by spray impact onto a heated target.
Proceedings 22th Int. Conf. on Liquid Atomization and Spray System.
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
The hydrodynamics and heat transfer associated with spray impact onto a heated target is investigated. The wall film flow generated by spray impact, and the spray cooling efficiency are studied under terrestrial, microgravity and hypergravity conditions. The microgravity experiments are performed during several Parabolic Flight campaigns and on board of a TEXUS sounding rocket. The spray cooling efficiency has been determined at various spray parameters and at different gravity levels. The longer duration of microgravity conditions obtained on TEXUS allows a better quantification of the gravity level effect on spray cooling. A robust method of liquid film characterization has been proposed. The average film thickness increases and the spray cooling efficiency decreases as gravity is reduced.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Kyriopoulos, O. ; Roisman, Ilia V. ; Gambaryan-Roisman, Tatiana ; Stephan, Peter ; Tropea, Cameron |
| Art des Eintrags: | Bibliographie |
| Titel: | Dynamics of a liquid film produced by spray impact onto a heated target |
| Sprache: | Englisch |
| Publikationsjahr: | 2008 |
| Veranstaltungstitel: | Proceedings 22th Int. Conf. on Liquid Atomization and Spray System |
| Kurzbeschreibung (Abstract): | The hydrodynamics and heat transfer associated with spray impact onto a heated target is investigated. The wall film flow generated by spray impact, and the spray cooling efficiency are studied under terrestrial, microgravity and hypergravity conditions. The microgravity experiments are performed during several Parabolic Flight campaigns and on board of a TEXUS sounding rocket. The spray cooling efficiency has been determined at various spray parameters and at different gravity levels. The longer duration of microgravity conditions obtained on TEXUS allows a better quantification of the gravity level effect on spray cooling. A robust method of liquid film characterization has been proposed. The average film thickness increases and the spray cooling efficiency decreases as gravity is reduced. |
| 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 15:07 |
| Letzte Änderung: | 08 Aug 2019 13:33 |
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