Transient natural convection in an enclosure with horizontal temperature and vertical solutal gradients
作者： Rachid Bennacer , Abdulmajeed A. Mohamad , Dalila Akrour
DOI: 10.1016/S1290-0729(01)01276-5
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摘要: Transient, double diffusive natural convection in a horizontal enclosure is investigated numerically and analytically.The heated cooled along the vertical walls solutal gradient imposed vertically.The objective of work to identify flow regime for thermal dominated flows.It found that becomes unstable (oscillatory) finite range buoyancy ratios.It possible obtain different solutions on this region depending initial conditions.Also, results reveal may be suppressed strongly stratified fluid.Owing large number parameters, are reported aspect ratio two, Prandtl 7.0 (water) Lewis 100 (aqueous solution).Rayleigh varied between 7 × 10 3 5 . 2001 Editions scientifiques et medicales Elsevier SAS
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