Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 3; Page(s) 1105 To 1113.
 
Paper: 

THROUGHFLOW AND GRAVITY MODULATION EFFECTS ON HEAT TRANSPORT IN A POROUS MEDIUM

 
 
Author(s):  KIRAN P.*
 
* DEPARTMENT OF MATHEMATICS, RAYALASEEMA UNIVERSITY, KURNOOL, 518007, ANDHRA PRADESH, INDIA
 
Abstract: 

The effect of vertical through flow and time-periodic gravity field has been investigated on Darcy convection.
The amplitude of gravity modulation is considered to be very small and the disturbances are expanded in terms of power series of amplitude of convection. A weak nonlinear stability analysis has been performed for the stationary mode of convection. As a consequence heat transport evaluated in terms of the Nusselt number, which is governed by the non-autonomous Ginzburg-Landau equation. Throughflow can stabilize or destabilize the system for stress free and isothermal boundary conditions. The amplitude and frequency of modulation, Prandtl Darcy number on heat transport have been analyzed and depicted graphically. Further, the study establishes that the heat transport can be controlled effectively by a mechanism that is external to the system. Finally flow patterns are presented in terms of streamlines and isotherms.

 
Keyword(s): THROUGH FLOW, GRAVITY MODULATION, WEAK NONLINEAR THEORY, GINZBURG-LANDAU MODEL
 
References: 
  • ندارد
 
  pdf-File tarjomyar Yearly Visit 19
 
Latest on Blog
Enter SID Blog