عنوان المقالة:LINEAR STABILITY AT THE ONSET OF ROTATING CONVECTION IN THE PRESENCE OF MAGNETIC FIELD LINEAR STABILITY AT THE ONSET OF ROTATING CONVECTION IN THE PRESENCE OF MAGNETIC FIELD
ابتسام ميلاد العقاب | Ibtesam Milad Laqab | 2874
Publication Type
ScientificArticle
Arabic Authors
ابتسام ميلاد العقاب, فتحية ميلاد العقاب.
English Authors
Ibtesam M. Laqab, Fathia M. Alogab
Abstract
The phenomena of convection are one of the most interesting problems in fluid dynamics. In this paper we shall study the case of linear stability of a rotating electrically conducting viscous layer heated from below lying in a uniform magnetic field based on the Boussinesq approximation. We restrict our study to the case when the direction of magnetic field and rotation are parallel; the discussion is focused on the case of large Taylor number and Chandrasekhar number . Generally, magnetic field facilitates convection in a rapidly rotating frame breaking the rotational constraints. The numerical solutions for stationary convection showed that at fixed large and as we increase , The critical Rayleigh number stayed fixed until reached a special value, then as we increase , Rayleigh number continue to decrease reaching its minimum before starting to increase again, two minimum values are determined at large . A further analysis done on the stationary convection is finding the critical value of which give the same critical Rayleigh number at large Taylor number .
Publication Date
12/31/2018
Publisher
Journal of Humanities and applied Sciences
Volume No
Issue No
31
File Link
تحميل (1 مرات التحميل)
External Link
https://journals.asmarya.edu.ly/jbs/index.php/jbs/article/view/99
Keywords
Chandrasekhar Number, Convection, Rotating Convection, Magnetic Field, Rayleigh Number, Stationary Convection, Stability of convection, Taylor Number
رجوع