Temat: variable gravity - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Variable gravity effects on thermal instability of nanofluid in anisotropic porous medium
Autorzy:: Chand, R.
Rana, G. C.
Kumar, S.
Tematy:: porowatość
liczba Rayleigha
zmienna grawitacja
nanofluid
anisotropic porous medium
Rayleigh number
variable gravity; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/265426.pdf Link otwiera się w nowym oknie
Opis:: In this paper, we study the effects of variable gravity on thermal instability in a horizontal layer of a nanofluid in an anisotropic porous medium. Darcy model been used for the porous medium. Also, it incorporates the effect of Brownian motion along with thermophoresis. The normal mode technique is used to find the confinement between two free boundaries. The expression of the Rayleigh number has been derived, and the effects of variable gravity and anisotropic parameters on the Rayleigh number have been presented graphically.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Triple diffusive convection of a non-Newtonian fluid under the combined effect of compressibility and variable gravity
Autorzy:: Aggarwal, A. K.
Dixit, D.
Tematy:: dyfuzja
płyn Rivlina-Ericksena
ściśliwość
zmienna grawitacja
triple diffusion
Rivlin-Ericksen fluid
suspended particles
porous medium
compressibility
variable gravity; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/265482.pdf Link otwiera się w nowym oknie
Opis:: In this paper, triple diffusive convection in a Rivlin-Ericksen fluid layer, which is permeated with suspended particles in the porous medium under the effect of compressibility and variable gravity, is investigated. Linear stability theory and normal mode analysis have been used to study the problem under consideration. It is observed that, for stationary convection, suspended particles, compressibility and medium permeability have destabilizing/stabilizing effects under certain conditions. The variable gravity parameter destabilizes the system whereas stable solute gradients have a stabilizing effect.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: A Lagrangian Finite Element Analysis of Gravity Waves in Water of Variable Depth
Autorzy:: Staroszczyk, R.
Tematy:: gravity water wave
variable water depth
transient problem
Lagrangian formulation
finite element method; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Powiązania:: https://bibliotekanauki.pl/articles/241185.pdf Link otwiera się w nowym oknie
Opis:: The paper is concerned with the problem of gravitational wave propagation in water of variable depth. The problem is formulated in the Lagrangian description, and the ensuing equations are solved numerically by a finite element method. In computations a convecting mesh that follows the material fluid particles is used. As illustrations, results of numerical simulations carried out for plane gravity waves propagating over bottoms of simple geometry are presented. For parameters typical of a laboratory flume, the transformation of a transient wave, generated by a single movement of a piston-like wave maker, is investigated. The results show the evolution of the free-surface elevation, displaying steepening of the wave over sloping beds and its gradual attenuation in regions of uniform depth.
Dostawca treści:: Biblioteka Nauki

Artykuł

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