Struktura obiektu

Autor:

Singh, Mahinder ; Gupta, R.K.

Współtwórca:

Jurczak, Paweł - red.

Tytuł:

Hall effect on thermal instability of viscoelastic dusty fluid in porous medium

Tytuł publikacji grupowej:

IJAME, volume 18 (2013)

Temat i słowa kluczowe:

thermal instability ; Rivlin-Ericksen viscoelastic fluid ; suspended particles ; Hall current effect ; porous medium

Abstract:

The effect of Hall currents and suspended dusty particles on the hydromagnetic stability of a compressible, electrically conducting Rivlin-Ericksen elastico viscous fluid in a porous medium is considered. Following the linearized stability theory and normal mode analysis the dispersion relation is obtained. For the case of stationary convection, Hall currents and suspended particles are found to have destabilizing effects whereas compressibility and magnetic field have stabilizing effects on the system. ; The medium permeability, however, has stabilizing and destabilizing effects on thermal instability in contrast to its destabilizing effect in the absence of the magnetic field. The critical Rayleigh numbers and the wave numbers of the associated disturbances for the onset of instability as stationary convection are obtained and the behavior of various parameters on critical thermal Rayleigh numbers are depicted graphically. The magnetic field, Hall currents and viscoelasticity parameter are found to introduce oscillatory modes in the systems, which did not exist in the absence of these parameters.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2013

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.2478/ijame-2013-0052

Strony:

871-886

Źródło:

IJAME, volume 18, number 3 (2013)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

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Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego