Stagnation region heat transfer augmentation at very high turbulence levels

Kingery, Joseph E.; Ames, Forrest E.

doi:10.1115/1.4032677

Stagnation region heat transfer augmentation at very high turbulence levels

Journal Article · Tue Mar 22 00:00:00 EDT 2016 · Journal of Turbomachinery

DOI:https://doi.org/10.1115/1.4032677· OSTI ID:1275783

Kingery, Joseph E. ^[1]; Ames, Forrest E. ^[2]

Ratheon Missile Systems, Tucson, AZ (United States); University of North Dakota
Univ. of North Dakota, Grand Forks, ND (United States)

Current land-based gas turbines are growing in size producing higher approach flow Reynolds numbers at the leading edge of turbine nozzles. These vanes are subjected to high intensity large scale turbulence. This present paper reports on the research which significantly expands the parameter range for stagnation region heat transfer augmenta-tion due to high intensity turbulence. Heat transfer measurements were acquired over two constant heat flux test surfaces with large diameter leading edges (10.16 cm and 40.64 cm). The test surfaces were placed downstream from a new high intensity (17.4%) mock combustor and tested over an eight to one range in approach flow Reynolds number for each test surface. Stagnation region heat transfer augmentation for the smaller (Re_D = 15,625–125,000) and larger (Re_D = 62,500–500,000) leading edge regions ranged from 45% to 81% and 80% to 136%, respectively. Furthermore, these data also include heat transfer distributions over the full test surface compared with the earlier data acquired at six additional inlet turbulence conditions. These surfaces exhibit continued but more moderate acceleration downstream from the stagnation regions and these data are expected to be useful in testing bypass transition predictive approaches. This database will be useful to gas turbine heat transfer design engineers. [DOI: 10.1115/1.4032677]

View Accepted Manuscript (DOE)

Research Organization:: Univ. of North Dakota, Grand Forks, ND (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

Grant/Contract Number:: FE0004588

OSTI ID:: 1275783

Journal Information:: Journal of Turbomachinery, Journal Name: Journal of Turbomachinery Journal Issue: 8 Vol. 138; ISSN 0889-504X

Publisher:: ASMECopyright Statement

Country of Publication:: United States

Language:: English

References (23)

The effect of turbulence on heat transfer from heated cylinders Lowery, G. W.; Vachon, R. I. International Journal of Heat and Mass Transfer, Vol. 18, Issue 11 https://doi.org/10.1016/0017-9310(75)90231-8	journal	November 1975
Describing the uncertainties in experimental results Moffat, Robert J. Experimental Thermal and Fluid Science, Vol. 1, Issue 1 https://doi.org/10.1016/0894-1777(88)90043-X	journal	January 1988
Effect of free stream turbulence on local mass transfer from a circular cylinder Sanitjai, S.; Goldstein, R. J. International Journal of Heat and Mass Transfer, Vol. 44, Issue 15 https://doi.org/10.1016/S0017-9310(00)00315-X	journal	August 2001
Direct numerical simulation of heat transfer from the stagnation region of a heated cylinder affected by an impinging wake Wissink, Jan G.; Rodi, Wolfgang Journal of Fluid Mechanics, Vol. 669 https://doi.org/10.1017/S0022112010004866	journal	January 2011
A theory of turbulent flow round two-dimensional bluff bodies Hunt, J. C. R. Journal of Fluid Mechanics, Vol. 61, Issue 4 https://doi.org/10.1017/S0022112073000893	journal	December 1973
The distortion of turbulence by a circular cylinder Britter, R. E.; Hunt, J. C. R.; Mumford, J. C. Journal of Fluid Mechanics, Vol. 92, Issue 2 https://doi.org/10.1017/S0022112079000628	journal	May 1979
Effects of Turbulence on Laminar Skin Friction and Heat Transfer Smith, Mahlon C. Physics of Fluids, Vol. 9, Issue 12 https://doi.org/10.1063/1.1761623	journal	January 1966
Augmentation of Stagnation Region Heat Transfer Due to Turbulence From a DLN Can Combustor Van Fossen, G. James; Bunker, Ronald S. Journal of Turbomachinery, Vol. 123, Issue 1 https://doi.org/10.1115/1.1330270	journal	February 2000
Toward Improved Prediction of Heat Transfer on Turbine Blades Medic, G.; Durbin, P. A. Journal of Turbomachinery, Vol. 124, Issue 2 https://doi.org/10.1115/1.1458020	journal	April 2002
Stagnation Line Heat Transfer Augmentation Due to Freestream Vortical Structures and Vorticity Oo, Aung N.; Ching, Chan Y. Journal of Heat Transfer, Vol. 124, Issue 3 https://doi.org/10.1115/1.1471526	journal	May 2002
Experimental Measurements and Modeling of the Effects of Large-Scale Freestream Turbulence on Heat Transfer Nix, A. C.; Diller, T. E.; Ng, W. F. Journal of Turbomachinery, Vol. 129, Issue 3 https://doi.org/10.1115/1.2515555	journal	October 2006
Influence of Turbulence Parameters, Reynolds Number, and Body Shape on Stagnation-Region Heat Transfer Van Fossen, G. J.; Simoneau, R. J.; Ching, C. Y. Journal of Heat Transfer, Vol. 117, Issue 3 https://doi.org/10.1115/1.2822619	journal	August 1995
Darryl E. Metzger Memorial Session Paper: An Account of Free-Stream-Turbulence Length Scale on Laminar Heat Transfer Dullenkopf, K.; Mayle, R. E. Journal of Turbomachinery, Vol. 117, Issue 3 https://doi.org/10.1115/1.2835675	journal	July 1995
Influence of High Mainstream Turbulence on Leading Edge Heat Transfer Mehendale, A. B.; Han, J. C.; Ou, S. Journal of Heat Transfer, Vol. 113, Issue 4 https://doi.org/10.1115/1.2911212	journal	November 1991
Experiments on the Physical Mechanism of Heat Transfer Augmentation by Freestream Turbulence at a Cylinder Stagnation Point Nix, A. C.; Diller, T. E. Journal of Turbomachinery, Vol. 131, Issue 2 https://doi.org/10.1115/1.2950079	journal	January 2009
The Influence of Turbulence on Mass Transfer From Cylinders Kestin, J.; Wood, R. T. Journal of Heat Transfer, Vol. 93, Issue 4 https://doi.org/10.1115/1.3449823	journal	November 1971
The Physical Mechanism of Heat Transfer Augmentation in Stagnating Flows Subject to Freestream Turbulence Gifford, Andrew R.; Diller, Thomas E.; Vlachos, Pavlos P. Journal of Heat Transfer, Vol. 133, Issue 2 https://doi.org/10.1115/1.4002595	journal	November 2010
The Influence of Leading Edge Diameter on Stagnation Region Heat Transfer Augmentation Including Effects of Turbulence Level, Scale, and Reynolds Number Gandavarapu, Preethi; Ames, Forrest E. Journal of Turbomachinery, Vol. 135, Issue 1 https://doi.org/10.1115/1.4006396	journal	October 2012
Influence of Inflow Disturbances on Stagnation-Region Heat Transfer Bae, S.; Lele, S. K.; Sung, H. J. Journal of Heat Transfer, Vol. 122, Issue 2 https://doi.org/10.1115/1.521486	journal	November 1999
Turbulence Amplification in Flow About an Airfoil Sadeh, W. Z.; Sullivan, P. P. Volume 1B: General https://doi.org/10.1115/80-GT-111	conference	March 1980
The Response of High Intensity Turbulence in the Presence of Large Stagnation Regions Chowdhury, N.; Ames, F. E. Volume 3C: Heat Transfer https://doi.org/10.1115/GT2013-95055	conference	June 2013
Increased heat transfer to a cylindrical leading edge due to spanwise variations in the freestream velocity Rigby, D.; Van Fossen, G. 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference https://doi.org/10.2514/6.1991-1739	conference	June 1991
A one-equation turbulence model for aerodynamic flows Spalart, P.; Allmaras, S. 30th Aerospace Sciences Meeting and Exhibit https://doi.org/10.2514/6.1992-439	conference	February 2013

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