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Laminar Mixed Convection in the Entrance Region of Horizontal and Inclined Semicircular Ducts
المؤلف
المصدر
Advances in Mechanical Engineering
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-04-16
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Laminar mixed convection in the entrance region of horizontal and inclined semicircular ducts has been investigated.
The governing momentum and energy equations were solved numerically using a marching technique with finite control volume approach following the SIMPLER algorithm.
Results were obtained for thermal boundary condition of uniform heat input axially and uniform wall temperature circumferentially, incorporating Pr = 7, Re = 500, inclination angles (α=0° and 20°), and a wide range of Grashof numbers.
These results include velocity and temperature distributions at different axial locations as well as axial distribution of local Nusselt number and local wall friction factor.
It was found that Nusselt number is close to the forced convection values near the entrance region, then decreases to minimum value as the distance from the entrance increases, and then rises due to the effect of free convection before reaching a constant value (fully developed).
As Grashof number increases Nusselt number and wall friction factor increase in both developing and fully developed regions for horizontal and inclined ducts.
A comparison with the experimental data in the thermal entrance region was also conducted and the comparison was satisfactory.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
El Hasadi, Yousef M. F.. 2013. Laminar Mixed Convection in the Entrance Region of Horizontal and Inclined Semicircular Ducts. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-474635
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
El Hasadi, Yousef M. F.. Laminar Mixed Convection in the Entrance Region of Horizontal and Inclined Semicircular Ducts. Advances in Mechanical Engineering No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-474635
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
El Hasadi, Yousef M. F.. Laminar Mixed Convection in the Entrance Region of Horizontal and Inclined Semicircular Ducts. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-474635
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-474635
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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