Abstract
The present work investigates the effects of various guide vane designs on the heat transfer enhancement of rotating U-duct configuration with parallel 45-deg ribs. The ribs were installed on the bottom wall of the channel, which has a constant heat flux boundary condition. The channel has a square cross section with a 5.08 cm hydraulic diameter. The first and second passes are 514 mm and 460 mm, respectively. The range of Reynolds number for turbulent flow is up to 35,000. The channel rotates at various speeds up to 600 rpm, which brings the maximum rotation number of 0.75. Several computational fluid dynamics simulations are carried out for this study to understand the effect of guide vanes on flow and heat transfer in serpentine channels under various operating conditions.
References
1.
Burberi
, E.
, Massini
, D.
, Cocchi
, L.
, Mazzei
, L.
, Andreini
, A.
, and Facchini
, B.
, 2016
, “Effect of Rotation on a Gas Turbine Blade Internal Cooling System: Numerical Investigation
,” ASME J. Turbomach.
, 139
(3
), p. 031005
. 10.1115/1.40347992.
Yongniang
, Y.
, and Fuchs
, L.
, 1993
, “Numerical Study of Viscous Flow in a Rotating Rectangular Channel
,” Int. J. Eng. Sci.
, 31
(6
), pp. 873
–881
. 10.1016/0020-7225(93)90099-G3.
Johnson B
, V.
, Wagner
, J. H.
, Steuber
, G. D.
, and Yeh
, F. C.
, 1992
, “Heat Transfer in Rotating Serpentine Passages With Trips Skewed to the Flow
,” ASME J. Turbomach.
, 116
(1
), pp. 113
–123
. 10.1115/1.29282654.
Saravani
, M. S.
, Dipasquale
, N. J.
, Beyhaghi
, S.
, and Amano
, R. S.
, 2019
, “Heat Transfer in Internal Cooling Channels of Gas Turbine Blades: Buoyancy and Density Ratio Effects
,” ASME J. Energy. Resour. Technol.
, 141
(11
), p. 112001
. 10.1115/1.40436545.
Taslim
, M. E.
, Bondi
, L. A.
, and Kercher
, D. M.
, 1991
, “Experimental Investigation of Heat Transfer in an Orthogonally Rotating Channel Roughened With 45 deg Criss-Cross Ribs on Two Opposite Walls
,” ASME J. Turbomach.
, 113
(3
), pp. 346
–353
. 10.1115/1.29278826.
Taslim
, M. E.
, and Spring
, S. D.
, 1994
, “Effect od Turbulator Profile and Spacing on Heat Transfer and Friction in a Channel
,” J. Thermophys. Heat Transfer
, 8
(3
), pp. 555
–562
. 10.2514/3.5787.
Huh
, M.
, Lei
, J.
, and Han
, J.-C.
, 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
. 10.1115/1.40031728.
Moon
, H. K.
, O’Connell
, T.
, and Glezer
, B.
, 2000
, “Channel Height Effect on Heat Transfer and Friction in a Dimpled Passage
,” ASME J. Eng. Gas Turbine Power
, 122
(2
), pp. 307
–313
. 10.1115/1.4832089.
Han
, J. C.
, Glicksman
, L. R.
, and Rohsenow
, W. M.
, 1978
, “An Investigation of Heat Transfer and Friction for Rib-Roughened Surfaces
,” Int. J. Heat. Mass Transfer
, 21
(8
), pp. 321
–328
. 10.1016/0017-9310(78)90113-810.
Han
, J. C.
, Dutta
, S.
, and Ekkad
, S.
, 2001
, Gas Turbine Heat Transfer and Cooling Technology
, Taylor and Francis
, NewYork
.11.
Han
, J. C.
, 1984
, “Heat Transfer and Friction in Channels With Two Opposite Rib-Roughened Walls
,” ASME J. Heat Transfer
, 106
(4
), pp. 774
–781
. 10.1115/1.324675112.
Han
, J.
, 1988
, “Heat Transfer and Friction Characteristics in Rectangular Channels With Rib Turbulators
,” ASME J. Heat Transfer
, 110
(2
), pp. 321
–328
. 10.1115/1.325048713.
Taslim
, M. E.
, and Wadsworth
, C. M.
, 1997
, “An Experimental Investigation of the Rib Surface-Averaged Heat Transfer Coefficient in a Rib-Roughened Square Passage
,” ASME J. Turbomach.
, 119
(2
), pp. 381
–389
. 10.1115/1.284112214.
Liu
, Y.-H.
, Wright
, L. M.
, Fu
, W.-L.
, and Han
, J.-C.
, 2006
, “Rib Spacing Effect on Heat Transfer and Pressure Loss in a Rotating Two-Pass Rectangular Channel (AR = 1:2) With 45-Degree Angled Ribs
,” ASME Turbo Expo 2006 Power Land, Sea, Air
, Spain
, May 8–11
, Vol. 2006
, pp. 363
–373
.15.
Rashidi
, S.
, Hormozi
, F.
, Sundén
, B.
, and Mahian
, O.
, 2019
, “Energy Saving in Thermal Energy Systems Using Dimpled Surface Technology-A Review on mechanisms and Applications
,” J. Appl. Energy
, 250
, pp. 1491
–1547
. 10.1016/j.apenergy.2019.04.16816.
Cunha
, F. J.
, 2006
, Heat Transfer Analysis—Introduction. Gas Turbine Handbook
, CRC Press
, Cleveland, OH
.17.
Schüler
, M.
, Zehnder
, F.
, Weigand
, B.
, von Wolfersdorf
, J.
, and Neumann
, S. O.
, 2010
, “The Effect of Turning Vanes on Pressure Loss and Heat Transfer of a Ribbed Rectangular Two-Pass Internal Cooling Channel
,” ASME J. Turbomach.
, 133
(2
), p. 021017
. 10.1115/1.400055018.
Bunker
, R. S.
, 2008
, “The Augmentation of Internal Blade Tip-Cap Cooling by Arrays of Shaped Pins
,” ASME J. Turbomach.
, 130
(4
), pp. 041007
. 10.1115/1.281233319.
Park
, J. S.
, Lee
, D. M.
, Lee
, D. H.
, Lee
, S.
, Kim
, B. S.
, and Cho
, H. H.
, 2017
, “Thermal Performance in a Rotating Two-Passage Channel With Various Turning Guide Vanes
,” J. Mech. Sci. Technol.
, 31
(7
), pp. 3581
–3591
. 10.1007/s12206-017-0645-820.
Amano
, R.S.
, Beyhaghi
, S.
, Morrison
, M.
, Saravani
, M. S.
, and Dong
, P.
, 2017
, “Computational and Experimental Investigation of Heat Transfer in Stationary and Rotating Internal Cooling Ducts With High Rotation Numbers
,” 15th International Energy Conversion Engineeting Conference
, Atlanta, GA
, July 10–12
.21.
Saravani
, M. S.
, Beyhaghi
, S.
, DiPasquale
, N. J.
, and Amano
, R. S.
, 2018
, “Experimental Analysis of Heat Transfer in Stationary and Rotating Internal Cooling Channels
,” AIAA Aerospace Scicences Meeting
, Kissimmee, FL
, Jan. 8–12
, p. 1477
.22.
Sewall
, E. A.
, and Tafti
, D. K.
, 2005
, “Large-Eddy Simulation of Flow and Heat Transfer in the Developing Flow Region of a Rotating Gas Turbine Blade Internal Cooling Duct With Coriolis and Buoyancy Forces
,” ASME J. Turbomach.
, 130
(1
), p. 011005
.10.1115/1.243777923.
Bose
, S. T.
, and Moin
, P.
, 2014
, “A Dynamic Slip Boundary Condition for Wall-Modeled Large-Eddy Simulation
,” Phys. Fluids
, 26
(1
), p. 015104
. 10.1063/1.484953524.
Nicoud
, F.
, and Ducros
, F.
, 1999
, “Subgrid-Scale Stress Modelling Based on the Square of the Velocity Gradient Tensor
”, Flow, Turbul. Combust.
, 62
(3
), pp. 183
–200
. 10.1023/A:100999542600125.
Laney
, C. B.
, 1998
, Computational Gasdynamics
, Cambridge University Press
, Cambridge, UK
.26.
Wheeler
, A. J.
, and Ganji
, A. R.
, 2010
, Introduction to Engineering Experimentation
, 3rd ed., Pearson Higher Education
, New Jersey
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