- Tytuł:
- Analogy between thermal and mass diffusion effects of a free convective flow in rectangular enclosure
- Autorzy:
- Ambethkar, Vusala
- Powiązania:
- https://bibliotekanauki.pl/articles/1839737.pdf
- Data publikacji:
- 2020
- Wydawca:
- Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
- Tematy:
-
free convective flow
thermal diffusion effects
mass diffusion effects
rectangular enclosure
average Nusselt number
average Sherwood number
empirical correlations
swobodny przepływ konwekcyjny
efekty dyfuzji termicznej
efekty dyfuzji masowej
korelacje empiryczne
średnia liczba Sherwooda
średnia liczba Nusselta - Opis:
- In this investigation, the analogy between thermal and mass diffusive effects of a free convective flow in a rectangular enclosure is emphasized. The upwind finite volume method is used to discretize the governing equations of the continuity, momentum, energy and mass transfer. The novelty in this exploration is to appropriately modify the well-known Semi-Implicit Method for Pressure-Linked Equations (SIMPLE) algorithm so that it suits to the present problem and thereby, the new flow variables such as the temperature and the concentration are computed. An empirical correlation for the average Sherwood number (Sh) that does not exist in literature is suggested in this work. The average Sherwood numbers for distinct fluids (gases and liquids) are calculated, and mass diffusion effects within the horizontal rectangle are analyzed. The average Nusselt numbers (Nu) are calculated for distinct fluids such as liquids (Pr ≫1), liquid metals (Pr≪1) and gases (Pr < 1) for different Rayleigh numbers in the range of 3x105 ≤ RaL ≤ 7x10 9 from relevant empirical correlations existing in the literature. Accordingly, the thermal diffusion effects within the horizontal rectangle are analyzed.
- Źródło:
-
Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 4; 5-20
2299-9965 - Pojawia się w:
- Journal of Applied Mathematics and Computational Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł