Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Том 23, 2020 Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v5.i2.70
10 pages

On a Couple-Stress Fluid Heated from Below in a Porous Medium in the Presence of a Magnetic Field and Rotation

Department of Mathematics, National Institute of Technology, Hamirpur, (H.P.) 177005, India
R. C. Sharma
Department of Mathematics, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
Mohinder Pal
Department of Mathematics, Government Degree College, Nadaun, (H.P.) 177 033, India

Краткое описание

A layer of couple-stress fluid heated from below in a porous medium is considered in the presence of a uniform vertical magnetic field and uniform vertical rotation. For the case of stationary convection, the rotation postpones the onset of convection. The magnetic field and couple-stress may hasten the onset of convection in the presence of rotation while In the absence of rotation, they always postpone the onset of convection. The medium permeability hastens the onset of convection in the absence of rotation while in presence of rotation, it may postpone the onset of convection. Graphs have been plotted by giving numerical values to the parameters, to depict the stability characteristics. The rotation and magnetic field are found to introduce oscillatory modes In the system which were nonexistent in their absence. A sufficient condition for the nonexistence of ovestabllity is also obtained.