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Numerical Simulation and Holographic Visualization of Double Diffusive Convection in a Horizontal Concentric Annulus

Dosch, J. ; Beer, H. :
Numerical Simulation and Holographic Visualization of Double Diffusive Convection in a Horizontal Concentric Annulus.
[Online-Edition: http://dx.doi.org/10.1016/0017-9310(92)90152-I]
In: International Journal of Heat and Mass Transfer, 35 (7) pp. 1811-1821. ISSN 00179310
[Artikel], (1992)

Offizielle URL: http://dx.doi.org/10.1016/0017-9310(92)90152-I

Kurzbeschreibung (Abstract)

The time-dependent double diffusive convection in a horizontal concentric annulus is investigated both by numerical analysis and by holographic interferometry. In order to calculate stream functions, temperature-, concentration- and density-fields, the finite difference technique is utilized. Inner and outer cylinders of the annulus are kept isotherm, with the inner cylinder heated. The annulus is filled with an H2O-NaCl solution, which is isothermal initially and submitted to a linear and stable stratification of the solution. The results reveal a considerable decrease in heat transfer as compared to natural convection without a stabilizing salt gradient. In addition experiments are performed on double diffusive convection about a vertical cylinder in a square container.

Typ des Eintrags: Artikel
Erschienen: 1992
Autor(en): Dosch, J. ; Beer, H.
Titel: Numerical Simulation and Holographic Visualization of Double Diffusive Convection in a Horizontal Concentric Annulus
Sprache: Englisch
Kurzbeschreibung (Abstract):

The time-dependent double diffusive convection in a horizontal concentric annulus is investigated both by numerical analysis and by holographic interferometry. In order to calculate stream functions, temperature-, concentration- and density-fields, the finite difference technique is utilized. Inner and outer cylinders of the annulus are kept isotherm, with the inner cylinder heated. The annulus is filled with an H2O-NaCl solution, which is isothermal initially and submitted to a linear and stable stratification of the solution. The results reveal a considerable decrease in heat transfer as compared to natural convection without a stabilizing salt gradient. In addition experiments are performed on double diffusive convection about a vertical cylinder in a square container.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: International Journal of Heat and Mass Transfer
Band: 35
(Heft-)Nummer: 7
Fachbereich(e)/-gebiet(e): Fachbereich Maschinenbau > Technische Thermodynamik
Fachbereich Maschinenbau
Hinterlegungsdatum: 26 Feb 2015 16:26
Offizielle URL: http://dx.doi.org/10.1016/0017-9310(92)90152-I
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