| Author | Search for: Ouazaa, Nabil; Search for: Benisaad, Smail; Search for: Mamou, Mahmoud1 |
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| Affiliation | - National Research Council of Canada. Aerospace
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| Format | Text, Article |
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| Subject | double diffusion convection; porous medium; subcritical Rayleigh; supercritical Rayleigh; porous materials; finite difference method |
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| Abstract | The present study focuses on double diffusion natural convection in a square cavity saturated by an inclined porous medium subjected to cross temperature and concentration gradients. The Darcy model with the Boussinesq approximation, energy and species transport equations are solved numerically using the classical finite difference method with a time-accurate scheme. The case of equal thermal and solutal buoyancy forces is considered. For this situation, an equilibrium solution corresponding to the rest state is possible and the resulting onset of motion can be either supercritical or subcritical. The study is carried out for an inclination angle of 45°. The results are presented by Nusselt, Sherwood numbers and flow intensity as a function of thermal Rayleigh number. In this study, the beginning of the convection is determined and our study will be limited to the cases of equal and dominant diffusivities. |
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| Publication date | 2020 |
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| Publisher | Politechnica University of Bucharest |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 6b1595ff-6cc2-4ab7-917d-8248f00b0829 |
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| Record created | 2022-07-25 |
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| Record modified | 2022-07-25 |
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