Measurement of the heat transfer coefficient in the dimpled channel: Effects of dimple arrangement and channel height

Journal of Mechanical Science and Technology

Volumn 23, Issue 3, 2009, Pages 624-630

  Shin, Somin ^a   Lee, Ki Seon ^a   Park, Seoung Duck ^a   Kwak, Jae Su ^a  

^a Hankuk Aviation University   (South Korea)

Author keywords

Dimple; Transient liquid crystal technique; Turbine blade cooling; Turbine heat transfer

Indexed keywords

CHANNEL HEIGHT; CHANNEL HYDRAULICS; DIMPLE; DIMPLED CHANNEL; DIMPLED SURFACES; FLOW REATTACHMENT; FLOW RECIRCULATION; HEAT TRANSFER MEASUREMENTS; OVERALL HEAT TRANSFER COEFFICIENT; REYNOLDS; THERMAL PERFORMANCE; TRANSIENT LIQUID CRYSTAL TECHNIQUE; TURBINE BLADE COOLING; TWO CHANNEL;

COOLING; ENGINES; HEAT TRANSFER COEFFICIENTS; HYDRAULIC MOTORS; LIQUID CRYSTALS; MIXED CONVECTION; REYNOLDS NUMBER; TURBINES; TURBOMACHINE BLADES;

HEAT EXCHANGERS;

EID: 70349620612     PISSN: 1738494X     EISSN: None     Source Type: Journal    
DOI: 10.1007/s12206-008-1211-1     Document Type: Article

References (16)

1. A. Khalatov, A. Byerley, D. Ochoa and M. Seong-Ki, Flow characteristics within and downstream of spherical and cylindrical dimple on a flat plate at low Reynolds numbers, ASME paper GT2004-53656 (2004).
2. G. I. Mahmood, M. L. Hill, D. L. Nelson and P. M. Ligrani, Local heat transfer and flow structure on and above a dimpled surface in a channel, ASME paper 2000-GT-230 (2000).
3. G. I. Mahmood and P. M. Ligrani, Heat transfer in a dimpled channel: combined influences of aspect ratio, temperature ratio, Reynolds number, and flow structure, International J. of Heat and Mass Transfer, pp. 2011-2020 (2002).
4. N. K. Burgess and P. M. Ligrani, Effects of dimple depth on Nusselt numbers and friction factors for internal cooling in a channel, ASME paper GT2004-54232 (2004).
5. S. W. Moon and S. C. Lau, Turbulent heat transfer measurements on a wall with concave and cylindrical dimples in a square channel, ASME paper GT-2002-30208 (2002).
6. H. K. Moon, T. O'Connell and B. Glezer, Channel height effect on heat transfer and friction in a dimpled passage, J. of Engineering for Gas Turbines and Power, 122 (2000) 307-313.
7. P. M. Ligrani, N. K. Burgess and S. Y. Won, Nusselt numbers and flow structure on and above a shallow dimpled surface within a channel including effects of inlet turbulence intensity level, ASME paper GT-2004-54231 (2004).
8. M. K. Chyu, Y. Yu, H. Ding, J. P. Downs and F. O. Soechting, Concavity enhanced heat transfer in an internal cooling passage, ASME paper 97-GT-437 (1997).
9. P. M. Ligrani, G. I. Mahmood, J. I. Harrison, C. M. Clayton and D. L. Nelson, Flow structure and local Nusselt number variations in a channel with dimples and protrusions on opposite walls, International J. of Heat and Mass Transfer, 4413-4425 (2001).
10. I. Borisov, A. Khalatov and S. Kobzar, Comparison of thermo-hydraulic characteristics for two types of dimpled surfaces, ASME paper GT2004-54204 (2004).
11. ISO, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full-Part 4: Venturi tubes, ISO 5167-4 (2004).
12. S. Shin, C. S. Jeon, J. S. Kwak and Y. W. Jung, Improvement of accuracy in evaluating hue change time in the hue detection based transient liquid crystals technique, Transaction of KSME B, 31(11) (2007) 918-915.
13. J. S. Kwak, Comparison of analytical and superposition solutions of the transient liquid crystal technique, Journal of Thermophysics and Heat Transfer, 22(2) (2008) 290-295.
14. P. I. Frank and P. D. David, Fundamentals of Heat and Mass Transfer, Wiley, pp. 470-492 (2001)
15. Dunn, P. F., 2005, Measurement and data analysis for engineering and science, McGraw-Hill, Inc.
16. T. S. Griffith, L. Al-Hadhrami and J. C. Han, Heat transfer in rotating rectangular cooling channels (AR=4) with dimples, ASME paper GT-2002-30220 (2002).