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
فتحية ميلاد العقاب | Fathia milad alagab | 3485
نوع النشر
مقال علمي
المؤلفون بالعربي
ابتسام ميلاد العقاب, فتحية ميلاد العقاب.
المؤلفون بالإنجليزي
Ibtesam M. Laqab, Fathia M. Alogab
الملخص الانجليزي
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 T and Chandrasekhar numberQ. 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 T and as we increase Q, The critical Rayleigh number c Ra stayed fixed until Q reached a special value, then as we increase Q, Rayleigh number continue to decrease reaching its minimum before starting to increase again, two minimum values are determined at large T . A further analysis done on the stationary convection is finding the critical value of Q which give the same critical Rayleigh number at large Taylor numberT
تاريخ النشر
15/12/2018
الناشر
Journal of Humanities and applied Sciences
رقم المجلد
رقم العدد
31
رابط الملف
تحميل (0 مرات التحميل)
رابط خارجي
http://www.asmarya.edu.ly/journal/wp-content/uploads/2019/04/4.pdf
الكلمات المفتاحية
Chandrasekhar Number Q , Convection, Rotating Convection, Magnetic Field, Rayleigh Number Ra , Stationary Convection, Stability of convection, Taylor NumberT
رجوع