عنوان المقالة:تاثير الفيض المغناطيسي الطولي على الحمل الحراري في فجوة جيبيه Studying the effects of a longitudinal magnetic field and discrete isoflux heat source size on natural convection inside a tilted sinusoidal corrugated enclosure
الاستاذ الدكتور احمد كاظم حسين | Prof.Dr. Ahmed Kadhim Hussein | 5736
نوع النشر
مجلة علمية
المؤلفون بالعربي
احمد كاظم حسين , سلام هادي حسين , رحاب نور
المؤلفون بالإنجليزي
Salam Hadi Hussain , Ahmed Kadhim Hussein, Rehab Noor Mohammed
الملخص العربي
تاثير الفيض المغناطيسي الطولي على الحمل الحراري في فجوة جيبيه
الملخص الانجليزي
In the present work, the effects of the longitudinal magnetic field and the heat source size on natural convection heat transfer through a tilted sinusoidal corrugated enclosure for different values of enclosure inclination angles are analyzed and solved numerically by using the finite volume technique based on body fitted control volumes with a collected variable arrangement. A constant heat flux source is discretely embedded at the central part of the bottom wall whereas the remaining parts of the bottom wall and the upper wall are assumed adiabatic, and two vertical sinusoidal corrugated walls are maintained at a constant low temperature. The range of the variable parameters considered in the present analysis is as follows: the enclosure inclination angle is varied from 0° to 135°, the ratio of the size of the heating element to enclosure width varied from 20 to 80% of enclosure reference length, Hartmann number is varied from 0 to 100, and Rayleigh number varied from 103 to 106. Liquid gallium with constant Prandtl number (0.02) is used as a working fluid with constant properties except the density. The obtained results indicated that streamlines are affected strongly by the magnetic field especially for small values of inclination angle (Φ = 0°) and Rayleigh number (Ra = 103–106). The magnetic field effect decreases with an increase in the enclosure inclination angle (Φ > 0°) especially for large values of Rayleigh number.
تاريخ النشر
06/02/2012
الناشر
دار نشر السفير العالميه
رقم المجلد
64
رقم العدد
2
ISSN/ISBN
0898-1221
رابط DOI
10.1016/j.camwa.2011.12.022
الصفحات
476–488
رابط الملف
تحميل (81 مرات التحميل)
الكلمات المفتاحية
natural convection
رجوع