The onset of thermal convection in couple-stress fluid in hydromagnetics saturating a porous medium

Bulletin of the Polish Academy of Sciences. Technical Sciences

Gian C. RanaDepartment of Mathematics, Sidharth Govt. Degree College, Nadaun-177 033, District Hamirpur, Himachal Pradesh, IndiaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Department of Mathematics, Sidharth Govt. Degree College, Nadaun-177 033, District Hamirpur, Himachal Pradesh, India

关键词: Keywords: couple-stress fluid;    magnetic field;    porous medium;    thermal convection;   

DOI  :  10.2478/bpasts-2014-0035

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

In this paper, the effect of magnetic field on thermal convection in couple-stress fluid saturating a porous medium is considered. By applying linear stability theory and the normal mode analysis method, a mathematical theorem is derived which states that the viscoelastic thermal convection at marginal state, cannot manifest as stationary convection if the thermal Rayleigh number R, the medium permeability parameter Pι the couple-stress parameter F and the Chandrasekher number Q, satisfy the inequality

【 授权许可】

Unknown