THREE-DIMENSIONAL NUMERICAL ANALYSIS OF FORCED CONVECTION FLOW AND HEAT TRANSFER IN A CURVED SQUARE DUCT

被引：0

作者：

Onur, Nevzat ^{[1
]}

Turgut, Oguz ^{[1
]}

Arslan, Kamil ^{[1
]}

机构：

[1] Gazi Univ, Fac Engn, Dept Mech Engn, TR-06570 Ankara, Turkey

来源：

ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY | 2011年 / 31卷 / 02期

关键词：

Laminar flow; Curved square duct; Forced convection; Heat transfer; Ansys Fluent; LAMINAR-FLOW;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A three-dimensional numerical study of a constant property Newtonian fluid in 90 degrees strongly curved duct having a constant square cross section under steady and laminar flow conditions is presented for a uniform wall temperature boundary condition. Numerical solutions were obtained using commercial software Ansys Fluent 6.3.26 for the range of 165 <= De <= 1450 (250 <= Re <= 2200). The working fluid was air (Pr congruent to 0.7). The average Nusselt numbers and average Darcy friction factors are obtained, which can be used in estimation of flow and heat transfer performance in curved duct. In addition, local Nusselt numbers, local Darcy friction factors, velocity magnitude and temperature profiles, and secondary velocities are analyzed. Results are compared with the literature for validation of the numerical approach. It is seen that present results are in good agreement with the literature results.

引用

页码：13 / 24

页数：12

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