Laminar aiding combined convection in the developing region of inclined cylinder
Joint Authors
Karam Allah, Abd al-Hasan Abd
Muhammad, Aqil Abd Allah
Jadoaa, Amir A.
Source
Issue
Vol. 17, Issue 3 (30 Jun. 2011), pp.6837-6846, 10 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2011-06-30
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Abstract AR
أجريت دراسة عمليه لبحث تأثير الحمل الحر على جريان الهواء الطباقي داخل أسطوانة دائرية مائلة مسخنة تسخين منتظم.
شملت الدراسة مدى رقم رينولدز (2008 ≥ 450 ≤ Re)، رقم رايليه (3.6982 x 105 ≥ Ra ≥ 105 1.1132 x) و لفيض حراري (95 ≤ q ≤ 898) W / m 2 و زوايا ميل (عمودي 90°، 60°، 30°، أفقي 0° = a).
بينت النتائج بأن عملية انتقال الحرارة تتحسن كلما تغيرت زاوية الميلان من الوضع العمودي إلى الوضع الأفقي.
من النتائج العملية تم وضع معادلة تجريبية عامة لمعدل رقم نسلت كدالة لرقم رينولدز Re و رقم رايلي Ra ، و زاوية الميلان a.
Abstract EN
The influence of natural convection due to buoyancy on the laminar upwards air flow in a uniformly heated inclined circular cylinder has been experimentally studied.
The investigation covered a wide range of Reynolds number (450 ≤ Re ≤ 2008), heat flux (95 ≤ q ≤ 898) W / m2, Rayligh number (1.1132 × 105 Ra £ 3.6982 × 105), with different angles of cylinder inclination α = 0° (Horizontal), α = 30°, α = 60° (Inclined) and α=90° (Vertical).Results show that the heat transfer process improves as the angle of inclination moves from vertical to horizontal position.
A general empirical equation for average Nusselt number Num as a function of Rayligh number Ra, Reynolds number Re and angle of inclination α was obtained.
American Psychological Association (APA)
Karam Allah, Abd al-Hasan Abd& Muhammad, Aqil Abd Allah& Jadoaa, Amir A.. 2011. Laminar aiding combined convection in the developing region of inclined cylinder. Journal of Engineering،Vol. 17, no. 3, pp.6837-6846.
https://search.emarefa.net/detail/BIM-287772
Modern Language Association (MLA)
Karam Allah, Abd al-Hasan Abd…[et al.]. Laminar aiding combined convection in the developing region of inclined cylinder. Journal of Engineering Vol. 17, no. 3 (Jun. 2011), pp.6837-6846.
https://search.emarefa.net/detail/BIM-287772
American Medical Association (AMA)
Karam Allah, Abd al-Hasan Abd& Muhammad, Aqil Abd Allah& Jadoaa, Amir A.. Laminar aiding combined convection in the developing region of inclined cylinder. Journal of Engineering. 2011. Vol. 17, no. 3, pp.6837-6846.
https://search.emarefa.net/detail/BIM-287772
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 6843-6846
Record ID
BIM-287772
