Dosch, J. and Beer, Hans (1992):
Numerical Simulation and Holographic Visualization of Double Diffusive Convection in a Horizontal Concentric Annulus.
In: International Journal of Heat and Mass Transfer, 35 (7), pp. 1811-1821. ISSN 00179310,
[Article]
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 1992 |
| Creators: | Dosch, J. and Beer, Hans |
| Title: | Numerical Simulation and Holographic Visualization of Double Diffusive Convection in a Horizontal Concentric Annulus |
| Language: | English |
| 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. |
| Journal or Publication Title: | International Journal of Heat and Mass Transfer |
| Journal volume: | 35 |
| Number: | 7 |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD) |
| Date Deposited: | 26 Feb 2015 16:26 |
| Official URL: | http://dx.doi.org/10.1016/0017-9310(92)90152-I |
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