Detailed heat transfer distributions over two opposite leading and trailing walls roughened by hemispherical protrusions were measured from a rotating rectangular channel at rotation number up to 0.6 to examine the effects of Reynolds (Re), rotation (Ro), and buoyancy (Bu) numbers on local and area-averaged Nusselt numbers (Nu and ) using the infrared thermography. A set of selected heat transfer data illustrates the Coriolis and rotating buoyancy effects on the detailed Nu distributions and the area-averaged heat transfer performances of the rotating channel. The for the developed flow region on the leading and trailing walls are parametrically analyzed to devise the empirical heat transfer correlations that permit the evaluation of the interdependent and individual Re, Ro, and Bu effect on .
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e-mail: swchang@mail.nkmu.edu.tw
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January 2012
Research Papers
Influence of Radial Rotation on Heat Transfer in a Rectangular Channel With Two Opposite Walls Roughened by Hemispherical Protrusions at High Rotation Numbers
Shyy Woei Chang,
Shyy Woei Chang
Professor
Thermal Fluids Laboratory,
e-mail: swchang@mail.nkmu.edu.tw
National Kaohsiung Marine University
, 142 Haijhuan Road, Nanzih District, Kaohsiung City, Taiwan 81143, R.O.C.
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Tong-Miin. Liou,
Tong-Miin. Liou
Professor
Department of Power Mechanical Engineering,
National Tsing Hua University
, No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, R.O.C.
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Wei-Chun Chen
Wei-Chun Chen
Research Student
Department of Marine Engineering,
National Kaohsiung Marine University
Search for other works by this author on:
Shyy Woei Chang
Professor
Thermal Fluids Laboratory,
National Kaohsiung Marine University
, 142 Haijhuan Road, Nanzih District, Kaohsiung City, Taiwan 81143, R.O.C.e-mail: swchang@mail.nkmu.edu.tw
Tong-Miin. Liou
Professor
Department of Power Mechanical Engineering,
National Tsing Hua University
, No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, R.O.C.
Wei-Chun Chen
Research Student
Department of Marine Engineering,
National Kaohsiung Marine University
J. Turbomach. Jan 2012, 134(1): 011010 (10 pages)
Published Online: May 26, 2011
Article history
Received:
September 2, 2010
Revised:
October 12, 2010
Online:
May 26, 2011
Published:
May 26, 2011
Citation
Chang, S. W., Liou, T., and Chen, W. (May 26, 2011). "Influence of Radial Rotation on Heat Transfer in a Rectangular Channel With Two Opposite Walls Roughened by Hemispherical Protrusions at High Rotation Numbers." ASME. J. Turbomach. January 2012; 134(1): 011010. https://doi.org/10.1115/1.4003231
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