Mixed convection around a heated rotating horizontal square cylinder in a circular enclosure

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789508913729· OSTI ID:94112

Yang, L; Farouk, B ^[1]

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1. Drexel Univ., Philadelphia, PA (United States). Dept. of Mechanical Engineering and Mechanics

Numerical results are presented for two-dimensional laminar mixed convection flows around a heated horizontal square cylinder rotating slowly within a concentric circular enclosure. The time evolution of the rotation and buoyancy-induced mixed convection flows are analyzed over a range of the radius ratio {chi}, the Gr, and the rotational Re. The radius ratio considered ranged from 0.2 to 0.55. The Gr range is taken from 10{sup 3} to 2{times}10{sup 4}, and the rotational Re varied from 0 to 24. The flow and temperature fields and heat transfer characteristics are presented over this parameter range. The effect of the rotating noncircular geometry of the inner cylinder on the flow field and heat transfer characteristics are considered in detail and compared with those previously studied for differentially heated concentric circular annuli.

• Sponsoring Organization: USDOE
• OSTI ID: 94112
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 1 Vol. 28; ISSN 1040-7782; ISSN NHAAES
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CAVITIES
CONVECTION
COVERINGS
HEAT EXCHANGERS
ROTATION