Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature
studied numerically. The left vertical wall of the cavity is heated with a temperature varying sinusoidally in time, while the opposite cold wall is maintained at a constant temperature. The same walls of the cavity are salted with constant and different concentrations (the concentration of the he...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2010-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=15257&issue_ID=202 |
| _version_ | 1819040822402744320 |
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| author | A. RAJI A. Raji M. Hasnaoui A. Abdelbaki M. Naïmi |
| author_facet | A. RAJI A. Raji M. Hasnaoui A. Abdelbaki M. Naïmi |
| author_sort | A. RAJI |
| collection | DOAJ |
| description | studied numerically. The left vertical wall of the cavity is heated with a temperature varying sinusoidally in time,
while the opposite cold wall is maintained at a constant temperature. The same walls of the cavity are salted with
constant and different concentrations (the concentration of the heated wall is higher than that of the cooled one). The
remaining horizontal walls are considered adiabatic and impermeable. The parameters governing the problem are the
amplitude of the variable temperature (0 £ a £ 1), its period (0.0001 £ t £ 10), the buoyancy forces ratio (-5 £ N £
+5), the Lewis number (0.1 £ Le £ 10) and the thermal Darcy-Rayleigh number (RT = 400). Effects of these
parameters on fluid flow, temperature and concentration distributions and mean heat and mass transfers within the
cavity are analyzed. Results obtained show that both heat and mass transfers could be significantly enhanced or
reduced, with respect to those generated in the case of constant heating conditions by proper choice of the parameters
related to the periodic temperature. |
| first_indexed | 2024-12-21T09:15:12Z |
| format | Article |
| id | doaj.art-eec64482cc1d4c268c51582a6771efbe |
| institution | Directory Open Access Journal |
| issn | 1735-3645 |
| language | English |
| last_indexed | 2024-12-21T09:15:12Z |
| publishDate | 2010-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-eec64482cc1d4c268c51582a6771efbe2022-12-21T19:09:09ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-36452010-01-01324352.Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting TemperatureA. RAJIA. RajiM. HasnaouiA. AbdelbakiM. Naïmistudied numerically. The left vertical wall of the cavity is heated with a temperature varying sinusoidally in time, while the opposite cold wall is maintained at a constant temperature. The same walls of the cavity are salted with constant and different concentrations (the concentration of the heated wall is higher than that of the cooled one). The remaining horizontal walls are considered adiabatic and impermeable. The parameters governing the problem are the amplitude of the variable temperature (0 £ a £ 1), its period (0.0001 £ t £ 10), the buoyancy forces ratio (-5 £ N £ +5), the Lewis number (0.1 £ Le £ 10) and the thermal Darcy-Rayleigh number (RT = 400). Effects of these parameters on fluid flow, temperature and concentration distributions and mean heat and mass transfers within the cavity are analyzed. Results obtained show that both heat and mass transfers could be significantly enhanced or reduced, with respect to those generated in the case of constant heating conditions by proper choice of the parameters related to the periodic temperature.http://jafmonline.net/JournalArchive/download?file_ID=15257&issue_ID=202Numerical study porous medium double diffusive natural convection periodic heating resonance phenomenon |
| spellingShingle | A. RAJI A. Raji M. Hasnaoui A. Abdelbaki M. Naïmi Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature Journal of Applied Fluid Mechanics Numerical study porous medium double diffusive natural convection periodic heating resonance phenomenon |
| title | Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature |
| title_full | Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature |
| title_fullStr | Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature |
| title_full_unstemmed | Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature |
| title_short | Resonance of Double-Diffusive Convection in a Porous Medium Heated with a Sinusoidal Exciting Temperature |
| title_sort | resonance of double diffusive convection in a porous medium heated with a sinusoidal exciting temperature |
| topic | Numerical study porous medium double diffusive natural convection periodic heating resonance phenomenon |
| url | http://jafmonline.net/JournalArchive/download?file_ID=15257&issue_ID=202 |
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