Flow in the internal three-pass serpentine rib turbulated passages of an advanced high pressure rotor blade is simulated on a 1:1 scale in the laboratory. Tests to measure the effect of rotation on the Nusselt number are conducted at rotation numbers up to 0.4 and Reynolds numbers from 75,000 to 165,000. To achieve this similitude, pressurized Freon R134a vapor is utilized as the working fluid. Experimental heat transfer coefficient measurements are made using the copper-plate regional average method. Regional heat transfer coefficients are correlated with rotation numbers. An increase in heat transfer rates due to rotation is observed in radially outward passes; a reduction in heat transfer rate is observed in the radially inward pass. Strikingly, a significant deterioration in heat transfer is noticed in the “hub” region—between the radially inward second pass and the radially outward third pass. This heat transfer reduction is critical for turbine cooling designs.
Issue Section:
Research Papers
References
1.
Han
, J.
, 1988
, “Heat Transfer and Friction Characteristics in Rectangular Channels With Rib Turbulators
,” ASME J. Heat Transfer
, 110
(2
), pp. 321
–328
.10.1115/1.32504872.
Han
, J.
, and Park
, J.
, 1988
, “Developing Heat Transfer in Rectangular Channels With Rib Turbulators
,” Int. J. Heat Mass Transfer
, 31
(1
), pp. 183
–195
.10.1016/0017-9310(88)90235-93.
Park
, J.
, Han
, J.
, Ou
, S.
, and Boyle
, R.
, 1992
, “Heat Transfer Comparisons of Five Different Rectangular Channels With Parallel Angled Ribs
,” Int. J. Heat Mass Transfer
, 35
(11
), pp. 2891
–2903
.10.1016/0017-9310(92)90309-G4.
Taslim
, M.
, Li
, T.
, and Spring
, S.
, 1997
, “Measurements of Heat Transfer Coefficients and Friction Factors in Rib-Roughened Channels Simulating Leading-Edge Cavities of a Modern Turbine Blade
,” ASME J. Turbomach.
, 119
(3
), pp. 601
–609
.10.1115/1.28411645.
Zhang
, Y.
, Gu
, W.
, and Han
, J.
, 1994
, “Augmented Heat Transfer in Triangular Ducts With Full and Partial Ribbed Walls
,” J. Thermophys. Heat Transfer
, 8
(3
), pp. 574
–579
.10.2514/3.5806.
Kiml
, R.
, Mochizuki
, S.
, and Murata
, A.
, 2001
, “Effects of Rib Arrangements on Heat Transfer and Flow Behavior in a Rectangular Rib-Roughened Passage: Application to Cooling of Gas Turbine Blade Trailing Edge
,” ASME J. Heat Transfer
, 123
(4
), pp. 675
–681
.10.1115/1.13780197.
Stephens
, M.
, Chyu
, M.
, Tom
, I.
, and Civinskas
, K.
, 1996
, “Calculations and Measurements of Heat Transfer in a Square Duct With Inclined Ribs
,” 32nd Joint Propulsion Conference and Exhibit
, Lake Buena Vista, FL
, July 1–3, AIAA
Paper No. 96-3163.10.2514/6.1996-31638.
Su
, G.
, Chen
, H.
, Han
, J.
, and Heidmann
, J.
, 2004
, “Computation of Flow and Heat Transfer in Rotating Two-Pass Rectangular Channels (AR = 1:1, 1:2, and 1:4) With Smooth Walls by a Reynolds Stress Turbulence Model
,” Int. J. Heat Mass Transfer
, 47
(26
), pp. 5665
–5683
.10.1016/j.ijheatmasstransfer.2004.07.0199.
Taslim
, M.
, and Lengkong
, A.
, 1998
, “45 Deg Staggered Rib Heat Transfer Coefficient Measurements in a Square Channel
,” ASME J. Turbomach.
, 120
(3
), pp. 571
–580
.10.1115/1.284175510.
Bunker
, R.
, and Bailey
, J.
, 2003
, “Heat Transfer and Friction in Channels With Very High Blockages 45 Degree Staggered Turbulators
,” ASME
Paper No. GT2003-38611.10.1115/GT2003-3861111.
Rallabandi
, A. P.
, Alkhamis
, N.
, and Han
, J. C.
, 2011
, “Heat Transfer and Pressure Drop Measurements for a Square Channel With 45 Deg Round Edged Ribs at High Reynolds Numbers
,” ASME J. Turbomach.
, 133
(3
), p. 031019
.10.1115/1.400124312.
Han
, J.
, Zhang
, Y.
, and Lee
, C.
, 1991
, “Augmented Heat Transfer in Square Channels With Parallel, Crossed, and V-Shaped Angled Ribs
,” ASME J. Heat Transfer
, 113
(3
), pp. 590
–596
.10.1115/1.291060613.
Han
, J.
, and Zhang
, Y.
, 1992
, “High Performance Heat Transfer Ducts With Parallel Broken and V-Shaped Broken Ribs
,” Int. J. Heat Mass Transfer
, 35
(2
), pp. 513
–523
.10.1016/0017-9310(92)90286-214.
Taslim
, M.
, and Spring
, S.
, 1994
, “Effects of Turbulator Profile and Spacing on Heat Transfer and Friction in a Channel
,” J. Thermophys. Heat Transfer
, 8
(3
), pp. 555
–562
.10.2514/3.57815.
Han
, J.
, Glicksman
, L.
, and Rohsenow
, W.
, 1978
, “An Investigation of Heat Transfer and Friction Factor for Rib-Roughened Surfaces
,” Int. J. Heat Mass Transfer
, 21
(3
), pp. 555
–562
.10.1016/0017-9310(78)90113-816.
Chandra
, P.
, Fontenot
, M.
, and Han
, J.
, 1998
, “Effect of Rib Profiles on Turbulent Channel Flow Heat Transfer
,” J. Thermophys. Heat Transfer
, 12
(1
), pp. 116
–118
.10.2514/2.631217.
Dipperey
, D.
and Sabersky
, R. H.
, 1963
, “Heat and Momentum Transfer in Smooth and Rough Tube at Various Prandtl Numbers
,” Int. J. Heat Mass Transfer
, 6
(5
), pp. 329
–353
.10.1016/0017-9310(63)90097-818.
Han
, J.
, 1984
, “Heat Transfer and Friction in Channels With Two Opposite Rib-Roughened Walls
,” ASME J. Heat Transfer
, 106
(4
), pp. 774
–781
.10.1115/1.324675119.
Wagner
, J.
, Johnson
, B.
, and Kopper
, F.
, 1991
, “Heat Transfer in Rotating Serpentine Passages With Smooth Walls
,” ASME J. Turbomach.
, 113
(3
), pp. 321
–330
.10.1115/1.292787920.
Wagner
, J.
, Johnson
, B.
, Graziani
, R.
, and Yeh
, F.
, 1992
, “Heat Transfer in Rotating Serpentine Passages With Trips Normal to the Flow
,” ASME J. Turbomach.
, 114
(4
), pp. 847
–857
.10.1115/1.292803821.
Johnson
, B.
, Wagner
, J.
, Steuber
, G.
, and Yeh
, F.
, 1994
, “Heat Transfer in Rotating Serpentine Passages With Trips Skewed to the Flow
,” ASME J. Turbomach.
, 116
(1
), pp. 113
–123
.10.1115/1.292826522.
Johnson
, B.
, Wagner
, J.
, Steuber
, G.
, and Yeh
, F.
, 1994
, “Heat Transfer in Rotating Serpentine Passages With Selected Model Orientations for Smooth or Skewed Trip Walls
,” ASME J. Turbomach.
, 116
(4
), pp. 738
–744
.10.1115/1.292946723.
Guidez
, J.
, 1989
, “Study of the Convective Heat Transfer in a Rotating Coolant Channel
,” ASME J. Turbomach.
, 111
(1
), pp. 43
–50
.10.1115/1.326223524.
Dutta
, S.
, and Han
, J. C.
, 1996
, “Local Heat Transfer in Rotating Smooth and Ribbed Two-Pass Square Channels With Three Channel Orientations
,” ASME J. Heat Transfer
, 118
(3
), pp. 578
–584
.10.1115/1.282267125.
Azad
, G. S.
, Uddin
, M. J.
, Han
, J. C.
, Moon
, H. K.
, Glezer
, B.
, 2002
, “Heat Transfer in a Two-Pass Rectangular Rotating Channel With 45-Deg Angled Rib Turbulators
,” ASME J. Turbomach.
, 124
(2
), pp. 251
–259
.10.1115/1.145056926.
Fu
, W.
, Wright
, L.
, and Han
, J.-C.
, 2006
, “Rotational Buoyancy Effects on Heat Transfer in Five Different Aspect Ratio Rectangular Channels With Smooth Walls and 45 Degree Ribbed Walls
,” ASME J. Heat Transfer
, 128
(11
), pp. 1130
–1141
.10.1115/1.235278227.
Liu
, Y.
, Huh
, M.
, Han
, J.
, and Chopra
, S.
, 2008
, “Heat Transfer in a Two-Pass Rectangular Channel (AR = 1:4) Under High Rotation Numbers
,” ASME J. Heat Transfer
, 130
(8
), p. 081701
.10.1115/1.290961528.
Huh
, M.
, Lei
, J.
, and Han
, J.
, 2012
, “Influence of Channel Orientation on Heat Transfer in a Two-Pass Smooth and Ribbed Rectangular Channel (AR = 2:1) Under Large Rotation Numbers
,” ASME J. Turbomach.
, 134
(1
), p. 011022
.10.1115/1.400317229.
Kline
, S. J.
, and McClintock
, F. A.
, 1953
, “Describing Uncertainty in Single-Sample Experiments
,” ASME J. Mech. Eng.
, 75
(1
), pp. 3
–8
.30.
Rallabandi
, A. P.
, Yang
, H.
, and Han
, J. C.
, 2009
, “Heat Transfer and Pressure Drop Measurements for a Square Channel With 45 Deg Ribs at High Reynolds Numbers
,” ASME J. Heat Transfer
, 131
(7
), p. 071701
.10.1115/1.309081831.
Mceligot
, D.
, and Jackson
, J.
, 2004
, “Deterioration Criteria for Convective Heat Transfer in Gas Flow Through Non-Circular Ducts
,” Nucl. Eng. Des.
, 232
(3
), pp. 327
–333
.10.1016/j.nucengdes.2004.05.00432.
Lee
, J.
, Hejzlar
, P.
, Saha
, P.
, Stahle
, P.
, Kazimi
, M.
, and Mceligot
, D.
, 2008
, “Deteriorated Turbulent Heat Transfer (DTHT) of Gas Up-Flow in a Circular Tube: Experimental Data
,” Int. J. Heat Mass Transfer
, 51
(13
), pp. 3259
–3266
.10.1016/j.ijheatmasstransfer.2008.03.02133.
Lei
, J.
, Li
, S. J.
, Han
J. C.
, Zhang
, L.
, Moon
, H. K.
, 2013
, “Heat Transfer in Rotating Multi-Pass Rectangular Ribbed Channel With and Without a Turning Vane
,” ASME J. Heat Transfer
, 135
(4
), p. 041903
.10.1115/1.4023040Copyright © 2014 by ASME
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