- Tytuł:
- Thermal convection of magneto compressible couple-stress fluid saturated in a porous medium with Hall current
- Autorzy:
-
Mehta, C. B.
Singh, M.
Kumar, S. - Powiązania:
- https://bibliotekanauki.pl/articles/265186.pdf
- Data publikacji:
- 2016
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
pole magnetyczne
ściśliwość
porowatość
prądy Hall'a
couple stress fluids
horizontal magnetic field
compressibility
porous medium
Hall currents - Opis:
- An investigation is made on the effect of Hall currents on thermal instability of a compressible couple-stress fluid in the presence of a horizontal magnetic field saturated in a porous medium. The analysis is carried out within the framework of the linear stability theory and normal mode technique. A dispersion relation governing the effects of viscoelasticity, Hall currents, compressibility, magnetic field and porous medium is derived. For the stationary convection a couple-stress fluid behaves like an ordinary Newtonian fluid due to the vanishing of the viscoelastic parameter. Compressibility, the magnetic filed and couple-stress parameter have stabilizing effects on the system whereas Hall currents and medium permeability have a destabilizing effect on the system, but in the absence of Hall current couple-stress has a destabilizing effect on the system. It has been observed that oscillatory modes are introduced due to the presence of viscoelasticity, magnetic field porous medium and Hall currents which were non-existent in their absence.
- Źródło:
-
International Journal of Applied Mechanics and Engineering; 2016, 21, 1; 83-93
1734-4492
2353-9003 - Pojawia się w:
- International Journal of Applied Mechanics and Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł