Simulation numérique en régime transitoire du procédé de refroidissement de réservoirs d'entreposage verticaux sous convection naturelle laminaire.
Unsteady numerical simulation of the cooling process of vertical storage tanks under laminar natural convection.
Auteurs : RODRÍGUEZ I., CASTRO J., PÉREZ-SEGARRA C. D., et al.
Type d'article : Article
Résumé
The transient cooling of a fluid initially at rest inside a vertical cylinder submitted to heat losses through the walls is studied. The study is restricted to laminar flow conditions. In order to identify the relevant non-dimensional groups that define the unsteady natural convection phenomenon that occurs, a non-dimensional analysis is carried out. The long-term behaviour of the fluid is modelled by formulating a prediction model based on global balances. A parametric study by means of several multidimensional numerical simulations led to correlate the Nusselt number and the transient mean fluid temperature, in order to feed the global model proposed. Special attention is given to the appropriateness of the spatial and time discretisation adopted, the verification of the numerical solutions and the post-processing tasks carried out in order to obtain the correlations. The most relevant particularities of the numerical model developed are also pointed out. [Reprinted with permission from Elsevier. Copyright, 2008].
Détails
- Titre original : Unsteady numerical simulation of the cooling process of vertical storage tanks under laminar natural convection.
- Identifiant de la fiche : 2009-1131
- Langues : Anglais
- Source : International Journal of thermal Sciences - vol. 48 - n. 4
- Date d'édition : 04/2009
Liens
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Indexation
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Experiments on stratified chilled-water tanks.
- Auteurs : NELSON J. E. B., BALAKRISHNAN A. R., SRINIVASA MURTHY S.
- Date : 05/1999
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 22 - n. 3
- Formats : PDF
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CONVECTIVE RESPONSE OF A MASS OF WATER NEAR 277...
- Auteurs : ROBILLARD L., VASSEUR P.
- Date : 1982
- Langues : Anglais
- Source : J. Fluid Mech. - 1982; 118; 123-141; 22 ref.
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Unsteady natural convection cooling of a water ...
- Auteurs : HMOUDA I., RODRÍGUEZ I., BOUDEN C., et al.
- Date : 01/2010
- Langues : Anglais
- Source : International Journal of thermal Sciences - vol. 49 - n. 1
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Model of transient stratified flow into a chill...
- Auteurs : HOMAN K. O., SOO S. L.
- Date : 11/1997
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 40 - n. 18
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Transient natural convection heat transfer of f...
- Auteurs : WU H. W., TSAI W. C., CHOU H. M.
- Date : 04/2004
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 8-9
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