Endwall heat transfer measurements for a radially rotating rectangular pin-fin channel with the width-to-height ratio (aspect ratio) of 8 are performed at the parametric conditions of , , and . Centerline heat transfer levels along the leading and trailing endwalls of the rotating pin-fin channel are, respectively, raised to 1.77–3.72 and 3.06–5.2 times of the Dittus–Boelter values. No previous attempt has examined the heat transfer performances for the pin-fin channel at such high rotation numbers. A selection of experimental data illustrates the individual and interactive Re, , and buoyancy number effects on heat transfer. Spanwise heat transfer variations between two adjoining pin rows are detected with the averaged Nusselt numbers (Nu) determined. A set of empirical equations that calculates Nu values over leading and trailing endwalls in the developed flow region is derived to correlate all the heat transfer data generated by this study and permits the evaluation of interactive and individual effects of Re, , and on Nu. With the aid of the Nu correlations derived, the operating conditions with the worst heat transfer scenarios for this rotating pin-fin channel are identified.
Skip Nav Destination
e-mail: swchang@mail.nkmu.edu.tw
Article navigation
April 2010
Research Papers
Heat Transfer in Radially Rotating Pin-Fin Channel at High Rotation Numbers
Shyy Woei Chang,
Shyy Woei Chang
Professor
Department of Marine Engineering, Thermal Fluids Laboratory,
e-mail: swchang@mail.nkmu.edu.tw
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung 811, Taiwan, R.O.C.
Search for other works by this author on:
Tong-Miin Liou,
Tong-Miin Liou
Professor
Department of Power Mechanical Engineering,
National Tsing Hua University
, 300 Hsinchu, Taiwan, R.O.C.
Search for other works by this author on:
Tsun Lirng Yang,
Tsun Lirng Yang
Associate Professor
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143, Taiwan, R.O.C.
Search for other works by this author on:
Guo Fang Hong
Guo Fang Hong
Marine Engineering,
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143, Taiwan, R.O.C.
Search for other works by this author on:
Shyy Woei Chang
Professor
Department of Marine Engineering, Thermal Fluids Laboratory,
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung 811, Taiwan, R.O.C.e-mail: swchang@mail.nkmu.edu.tw
Tong-Miin Liou
Professor
Department of Power Mechanical Engineering,
National Tsing Hua University
, 300 Hsinchu, Taiwan, R.O.C.
Tsun Lirng Yang
Associate Professor
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143, Taiwan, R.O.C.
Guo Fang Hong
Marine Engineering,
National Kaohsiung Marine University
, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143, Taiwan, R.O.C.J. Turbomach. Apr 2010, 132(2): 021019 (12 pages)
Published Online: January 21, 2010
Article history
Received:
August 20, 2008
Revised:
August 31, 2008
Online:
January 21, 2010
Published:
January 21, 2010
Citation
Chang, S. W., Liou, T., Yang, T. L., and Hong, G. F. (January 21, 2010). "Heat Transfer in Radially Rotating Pin-Fin Channel at High Rotation Numbers." ASME. J. Turbomach. April 2010; 132(2): 021019. https://doi.org/10.1115/1.3147103
Download citation file:
Get Email Alerts
Guideline for Large-Scale Analysis of Centrifugal Blower Using Wall-Resolved Large Eddy Simulation
J. Turbomach (February 2025)
Related Articles
Rotational Buoyancy Effects on Heat Transfer in Five Different Aspect-Ratio Rectangular Channels With Smooth Walls and 45 Degree Ribbed Walls
J. Heat Transfer (November,2006)
Discussion: “Heat Transfer in Rotating Rectangular Cooling Channels (AR=4) With Dimples” (T. S. Griffith, L. Al. Hadhrami, and J.-C. Han., 2003, ASME J. Turbomach. 125 , pp. 555–563)
J. Turbomach (July,2003)
Buoyancy-Driven Flow Reversal Phenomena in Radially Rotating
Serpentine Ducts
J. Heat Transfer (February,2000)
Effect of Rotation on Detailed Heat Transfer Distribution for Various Rib Geometries in Developing Channel Flow
J. Heat Transfer (January,2014)
Related Proceedings Papers
Related Chapters
Adding Surface While Minimizing Downtime
Heat Exchanger Engineering Techniques
Extended Surfaces
Thermal Management of Microelectronic Equipment
Heat Transfer Enhancement by Using Nanofluids in Laminar Forced Convection Flows Considering Variable Properties
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)