The present investigation provides detailed local heat/mass transfer and pressure drop characteristics in a matrix cooling channel, under rotating conditions. The matrix channel had cooling subpassages with crossing angles of 45 deg. The detailed heat/mass transfer coefficients were measured via the naphthalene sublimation method, and pressure drops were also obtained. The experiments were conducted for various Reynolds numbers (10,500 to 44,000) and rotation numbers (0.0 to 0.8). In the stationary case, the heat transfer characteristics were dominated by turning, impinging, and swirling flow, induced by the matrix channel geometry. Average heat/mass transfer coefficients on the leading and trailing surfaces in the stationary channel were approximately 2.1 times greater than those in a smooth channel. In the rotating cases, the effect of rotation on heat/mass transfer characteristics differed from that of typical rotating channels with radially outward flow. As the rotation number increased, the Sherwood number ratios increased on the leading surfaces but changed only slightly on the trailing surfaces. The thermal performance factors increased with rotation number due to the increased Sherwood number ratios and decreased friction factor ratios.
Skip Nav Destination
e-mail: hhcho@yonsei.ac.kr
Article navigation
Research Papers
Local Heat/Mass Transfer and Friction Loss Measurement in a Rotating Matrix Cooling Channel
In Taek Oh,
In Taek Oh
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Search for other works by this author on:
Kyung Min Kim,
Kyung Min Kim
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Search for other works by this author on:
Dong Hyun Lee,
Dong Hyun Lee
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Search for other works by this author on:
Jun Su Park,
Jun Su Park
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Search for other works by this author on:
Hyung Hee Cho
Hyung Hee Cho
Department of Mechanical Engineering,
e-mail: hhcho@yonsei.ac.kr
Yonsei University
, Seoul 120-749, Korea
Search for other works by this author on:
In Taek Oh
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Kyung Min Kim
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Dong Hyun Lee
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Jun Su Park
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
Hyung Hee Cho
Department of Mechanical Engineering,
Yonsei University
, Seoul 120-749, Korea
e-mail: hhcho@yonsei.ac.kr
J. Heat Transfer. Jan 2012, 134(1): 011901 (9 pages)
Published Online: October 27, 2011
Article history
Received:
August 30, 2010
Accepted:
August 12, 2011
Online:
October 27, 2011
Published:
October 27, 2011
Citation
Taek Oh, I., Min Kim, K., Hyun Lee, D., Su Park, J., and Hee Cho, H. (October 27, 2011). "Local Heat/Mass Transfer and Friction Loss Measurement in a Rotating Matrix Cooling Channel." ASME. J. Heat Transfer. January 2012; 134(1): 011901. https://doi.org/10.1115/1.4004853
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 2—Detailed Measurements
J. Turbomach (January,2001)
Internal Cooling Near Trailing Edge of a Gas Turbine Airfoil With Cooling Airflow Through Blockages With Holes
J. Turbomach (July,2008)
Experimental and Numerical Study of Mass/Heat Transfer on an Airfoil Trailing-Edge Slots and Lands
J. Turbomach (April,2007)
Experimental and Numerical Investigation of Convective Heat Transfer in a Gas Turbine Can Combustor
J. Turbomach (January,2011)
Related Proceedings Papers
Related Chapters
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Baking Pizza by Infrared Radiation and Conduction Heat Transfers and Mass Transfer in Unsteady State
Electromagnetic Waves and Heat Transfer: Sensitivites to Governing Variables in Everyday Life
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential