Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v41.i2.50
pages 167-186

The Effect of Suspended Particles on Marginal Stability of Magnetized Ferrofluid with Internal Angular Momentum

Sunil Kumar
NIT Hamirpur (H.P.)
Prakash Chand
Department of Applied Sciences, Jawahar Lal Nehru Government Engineering College, Sunder Nagar, H.P. -174 401, India
Amit Mahajan
Department of Applied Sciences, National Institute of Technology, Hamirpur, 177 005, India; Department of Mathematics and Statistics, University of Windsor, Windsor, Ontario, N9B3P4, Canada

Краткое описание

This paper deals with the theoretical investigation of the effect of dust particles on the marginal stability of a ferrofluid layer with internal angular momentum heated from below subjected to a transverse uniform magnetic field. For a flat fluid layer contained between two free boundaries, an exact solution is obtained using a linear stability analysis theory and normal mode analysis method. For the case of stationary convection, the effect of various parameters like dust particles, magnetization, coupling parameter, spin diffusion parameter, and heat conduction parameter has been analyzed. The critical magnetic thermal Rayleigh number for the onset of instability is also determined numerically for sufficiently large values of the magnetic parameter M1 and results are depicted graphically. It is observed that the critical magnetic thermal Rayleigh number is reduced because the heat capacity of clean fluid is supplemented by that of dust particles. The principle of exchange of stabilities is found to hold true for the ferrofluid with internal angular momentum in the absence of dust particles, coupling parameter, and microinertia. The oscillatory modes are introduced due to the presence of dust particles, coupling parameter, and microinertia, which were nonexistent in their absence. The sufficient conditions for the nonexistence of overstability are also obtained.


Articles with similar content:

Thermosolutal Convection in a Ferromagnetic Fluid Saturating a Porous Medium
Journal of Porous Media, Vol.8, 2005, issue 4
Sunil, R. C. Sharma, Divya
HALL CURRENT EFFECT ON THERMAL INSTABILITY OF COMPRESSIBLE VISCOELASTIC DUSTY FLUID IN POROUS MEDIUM
Heat Transfer Research, Vol.43, 2012, issue 2
Pardeep Kumar
Effect of Magnetic-Field-Dependent Viscosity on a Rotating Ferromagnetic Fluid Heated and Soluted from Below, Saturating a Porous Medium
Journal of Porous Media, Vol.8, 2005, issue 6
Sunil, R. C. Sharma, Divya
HYDRODYNAMIC AND HYDROMAGNETIC TRIPLY DIFFUSIVE CONVECTION IN A VISCOELASTIC FLUID THROUGH POROUS MEDIUM
Special Topics & Reviews in Porous Media: An International Journal, Vol.6, 2015, issue 3
Vivek Kumar, Pardeep Kumar, Mukesh Awasthi
Numerical Investigations of Oscillatory Motions of a Rotating Viscoelastic Nanofluid Layer in Natural Convection
International Journal of Fluid Mechanics Research, Vol.41, 2014, issue 3
Veena Sharma, Renu Kumari, Anuradha Chowdhary