Jeschke, P. ; Beer, Hans (2001)
Longitudinal vortices in a laminar natural convection boundary layer flow on an inclined flat plate and their influence on heat transfer.
In: Journal of Fluid Mechanics, 432
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The linear and nonlinear growth of longitudinal vortices in a laminar boundary layer and the development of secondary instabilities are investigated theoretically and by experiment. As a prototype problem the natural convection flow along a constant-heat-flux inclined flat plate in water is chosen. Based upon the smallness of the plate's angle of inclination from the vertical, the largeness of the Grashof number, and the smallness of the vortex strength, a perturbation method is used to derive and solve a consistent set of governing equations for the linear, weakly nonlinear and the strongly nonlinear regimes which is asymptotically correct to first order. Liquid-crystal thermography based on wide-band liquid crystals is used to provide full-field, highly accurate wall temperature measurements and visualizations.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2001 |
| Autor(en): | Jeschke, P. ; Beer, Hans |
| Art des Eintrags: | Bibliographie |
| Titel: | Longitudinal vortices in a laminar natural convection boundary layer flow on an inclined flat plate and their influence on heat transfer |
| Sprache: | Englisch |
| Publikationsjahr: | 2001 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Fluid Mechanics |
| Jahrgang/Volume einer Zeitschrift: | 432 |
| Kurzbeschreibung (Abstract): | The linear and nonlinear growth of longitudinal vortices in a laminar boundary layer and the development of secondary instabilities are investigated theoretically and by experiment. As a prototype problem the natural convection flow along a constant-heat-flux inclined flat plate in water is chosen. Based upon the smallness of the plate's angle of inclination from the vertical, the largeness of the Grashof number, and the smallness of the vortex strength, a perturbation method is used to derive and solve a consistent set of governing equations for the linear, weakly nonlinear and the strongly nonlinear regimes which is asymptotically correct to first order. Liquid-crystal thermography based on wide-band liquid crystals is used to provide full-field, highly accurate wall temperature measurements and visualizations. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 26 Feb 2015 16:16 |
| Letzte Änderung: | 05 Aug 2019 12:57 |
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