عنوان المقالة:الحمل المختلط المغناطيسي في فجوه متوازيه الاضلاع CHARACTERISTICS OF MAGNETOHYDRODYNAMIC MIXED CONVECTION IN A PARALLEL MOTION TWO-SIDED LID- DRIVEN DIFFERENTIALLY HEATED PARALLELOGRAMMIC CAVITY WITH VARIOUS SKEW ANGLES
الاستاذ الدكتور احمد كاظم حسين | Prof.Dr. Ahmed Kadhim Hussein | 5728
نوع النشر
مجلة علمية
المؤلفون بالعربي
احمد كاظم حسين , سلام هادي حسين
المؤلفون بالإنجليزي
Salam Hadi Hussain, Ahmed Kadhim Hussein
الملخص العربي
الحمل المختلط المغناطيسي في فجوه متوازيه الاضلاع
الملخص الانجليزي
A numerical study is presented for mixed convection flow of air (Pr=0.71) within a parallel motion two sided lid-driven parallelogrammic cavity in the presence of magnetic field. The left and right lid-driven sidewalls of the parallelogrammic cavity are maintained at isothermal hot and cold temperatures respectively and slide from bottom to top in upward parallel direction with a uniform lid-driven velocity. A magnetic field of strength (Box) is subjected in the horizontal direction. The horizontal walls of the cavity are considered thermally insulated. The finite volume method has been used to solve the governing Navier–Stokes and energy conservation equations of the fluid medium in the parallelogrammic cavity in order to investigate the effect of magnetic field on the flow and heat transfer for various values of Richardson number, skew angle and Hartmann number. The values of the governing parameters are the Hartmann number (0 ≤ Ha ≤ 75), Richardson number (0.01≤ Ri ≤100) and skew angle (- 60° ≤ Φ ≤ 60°). The present numerical approach is found to be consistent and the results is presented in terms of streamlines and isotherm contours in addition with the average Nusselt number. It is found that as the Hartmann number increases the circulation of the rotating vortices is reduced and the conduction mode of heat transfer is dominant. Also, it is found that both Richardson number and direction of two sided lid-driven sidewalls affect the heat transfer and fluid flow in the parallelogrammic cavity.
تاريخ النشر
07/01/2015
الناشر
دار نشر جامعه يلدز التركيه
رقم المجلد
1
رقم العدد
3
ISSN/ISBN
2148-7847
رابط DOI
journal-of-thermal-engineering/Articles
الصفحات
221-235
رابط الملف
تحميل (81 مرات التحميل)
الكلمات المفتاحية
mixed convection
رجوع