LAMINAR AIDING COMBINED CONVECTION IN THE DEVELOPING REGION OF INCLINED CYLINDER

محتوى المقالة الرئيسي

Abdulhassan A. Karamallah
Akeel A. Mohammed
Ameer A. Jadoaa

الملخص

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.

تفاصيل المقالة

كيفية الاقتباس
"LAMINAR AIDING COMBINED CONVECTION IN THE DEVELOPING REGION OF INCLINED CYLINDER" (2011) مجلة الهندسة, 17(03), ص 547–557. doi:10.31026/j.eng.2011.03.15.
القسم
Articles

كيفية الاقتباس

"LAMINAR AIDING COMBINED CONVECTION IN THE DEVELOPING REGION OF INCLINED CYLINDER" (2011) مجلة الهندسة, 17(03), ص 547–557. doi:10.31026/j.eng.2011.03.15.

تواريخ المنشور

المراجع

• Akeel Abdullah[1999] "Combined free and forced convection in a circular cylinder" M.Sc. thesis, university of Baghdad, college of engineering, mechanical department, (1999).

• Choudhury and Patankar[1988] "Combined forced and free laminar convection in the entrance region of an inclined isothermal tube" J.Heat Transfer,Vol. 110, pp. 901- 909,November 1988.

• Eckert and Diaguila[1954] "Convective heat transfer for mixed, free, and forced flow thought tubes" Transactions of the ASME, J.Heat Transfer, pp.497-504, May 1954.

• Jackson, Harrison and Boteler[1958] "Combined free and forced convection in a constant-temperature vertical tube"

Transactions of the ASME,Vol.80, pp.739-745.

• Mc comas and Eckert[1966] "Combined free and forced convection in a horizontal circular tube" Transactions of the ASME , J.Heat Transfer, pp.147-153, May 1966.

• Morcos and Bergles[1975] "Experimental investigation of combined forced and free laminar convection in horizontal tubes" J.Heat Transfer, Vol.97, pp.212-219.

• Pascal and Ralph[1985] "An investigation of laminar mixed convection inside a horizontal tube with isothermal wall conditions' J.Heat Mass Transfer, Vol.28, No.7, pp.1293-1305.

• Wang, Tsuji, and Nagano[1994] "Mixed convection with flow reversal in the thermal entrance region of horizontal and vertical pipes" Int. J. Heat Mass Transfer, Vol. 37, No. 15, pp. 2305-2319, 1994

• Zeldin and Schmidt[1972] "Developing flow with combined forced-free convection in an isothermally vertical tube" Transactions of the ASME , J.Heat Transfer, pp. 211-220, May 1972.

المؤلفات المشابهة

يمكنك أيضاً إبدأ بحثاً متقدماً عن المشابهات لهذا المؤلَّف.

الأعمال الأكثر قراءة لنفس المؤلف/المؤلفين