Computational Fluid Dynamic Procedures for Grid Generation and Solution-Induced Cooling Applied to Gas Turbine Hot Walls

  • A. M. El-jummah University of Maiduguri, Faculty of Engineering, Department of Mechanical Engineering, Maiduguri, Nigeria
  • U. A. Mukhtar University of Maiduguri, Faculty of Engineering, Department of Mechanical Engineering, Maiduguri, Nigeria
  • M. K. Adam University of Maiduguri, Faculty of Engineering, Department of Mechanical Engineering, Maiduguri, Nigeria
Keywords: Conjugate heat transfer, Numerical analysis, gas turbine wall cooling, impingement, impingement/effusion, thermal gradient, review, investigation, facilities

Abstract

Conjugate heat transfer (CHT) and computational fluid dynamics (CFD) were combined in this work and a review on the major characteristics that influence the numerical analysis was carried out. These formed the basis of fluid flow and wall conduction heat transfer interaction that are critical to gas turbine (GT) wall cooling. The key features of CHT CFD cooling computations of GT metal walls with applications to combustor wall, nozzle and turbine blade cooling: impingement, effusion and impingement/effusion systems were reviewed. Previous CFD works have been shown and comparisons were made with measured data, which indicates that CHT based experimental work is only possible where appropriate wall materials are used and thermal gradients are feasible. The analysis showed the significance of computational validation against experimental data from hot metal wall research facilities, which should also agree with the general principles and methods as used in the CFD. The target objective is to correlate the investigation to the basic computational methodologies that include: governing equations, turbulence model, grid resolution, boundary conditions, convergence and near-wall treatment. These were found to predict improved cooling geometries and its computational results using commercial CFD codes with good agreement.

Downloads

Download data is not yet available.

References

Andrews, G. E., Asere, A. A., Hussain, C. I. and Mkpadi, M. C. 1985. Full Coverage

Impingement Heat Transfer: The Variation in Pitch to Diameter Ratio at a Constant Gap.

Proportion and Energetics Panel of AGARD, 65th Symposium, 'Heat Transfer and

Cooling in Gas Turbines', Paper 26, 1 - 12.

Ariff, M., Salim, S.M. and Cheah, S.C. 2009a. Wall y+ Approach for Dealing With

Turbulent Flow Over a Surface Mounted Cube: Part 1 - Low Reynolds Number. Proc.

Seventh Int. Conference on CFD in the Minerals and Process Industries, CSIRO, 1 - 6.

Ariff, M., Salim, S.M. and Cheah, S.C. 2009b. Wall y+ Approach for Dealing With

Turbulent Flow Over a Surface Mounted Cube: Part 2 - High Reynolds Number. Proc.

Seventh Int. Conference on CFD in the Minerals and Process Industries, CSIRO, 1 - 6.

ASME V & V. 2009. Standard for Verification and Validation in Computational Fluid

Dynamics and Heat Transfer: An American National Standard. The American Society of

Mechanical Engineers, USA, 20.

Bailey, J. C., Intile, J., Fric, T. F., Tolpadi, A. K., Nirmalan, N. V. and Bunker, R. S.

Experimental and Numerical Study of Heat Transfer in a Gas Turbine Combustor

Liner. Trans. ASME J. Eng. Gas Turbines and Power, 125, 994 - 1002.

Bernard, P. S. and Wallace, J. M. 2002. Turbulent Flows: Analysis, Measurement and

Prediction, New Jersey, USA, John Wiley & Sons, Inc.

Brooks, F. J. 2010. GE Gas Turbine Performance Characteristics. GE Power Systems,

GER-3567H, 1 - 16.

Cengel, Y. A. and Cimbala, J. M. 2010. Fluid Mechanics: Fundamentals and Application

(Second Edition in SI Units), McGraw-Hill Co., Int. NY.

Chen, C. -J. and Jaw, S. -Y. 1998. Fundamentals of Turbulence Modelling. Taylor and

Francis.

Chen, H. C. and Patel, V. C. 1988. Near-Wall Turbulence Models for Complex Flows

Including Seperation. AIAA Journal, 26 (6), 641 - 648.

Cho, H. H., Rhee, D. H. and Goldstein, R. J. 2008. Effects of Hole Arrangements on

Local Heat/Mass Transfer for Impingement/Effusion Cooling With Small Hole Spacing.

Trans. ASME J. Turbomachinery, 130, 1 - 11.

El-jummah, A. M. 2015. Impingement and Impingement/Effusion Cooling of Gas

Turbine Components: Conjugate Heat Transfer Predictions. Ph. D Thesis, University of

Leeds.

El-jummah, A. M., Abdul Hussain, R. A. A., Andrews, G. E. and Staggs, J. E. J. 2014.

Conjugate Heat Transfer Computational Fluid Dynamic Predictions of Impingement Heat

Transfer: The Influence of Hole Pitch to Diameter Ratio X/D at Constant Impingement

Gap Z. Trans. ASME J. Turbomachinery, 136 (12), 1 - 16.

El-jummah, A. M., Andrews, G. E. and Staggs, J. E. J. 2015a. CHT/CFD Predictions of

Impingement Cooling With Four Sided Flow Exit. Proc. ASME Turbo Expo, GT-42256

-12.

El-jummah, A. M., Andrews, G. E. and Staggs, J. E. J. 2015b. Conjugate Heat Transfer

CFD Predictions of Metal Walls with Arrays of Short Holes as Used in Impingement and

Effusion Cooling. Proc. GTSJ Int. Gas Turbine Congress, IGTC TS - 266, 1 - 9.

El-jummah, A. M., Andrews, G. E. and Staggs, J. E. J. 2016a. Impingement Jet Cooling

with Ribs and Pin Fin Obstacles in Co-flow Configurations: Conjugate Heat Transfer

Computational Fluid Dynamic Predictions. Proc. ASME Turbo Expo: Turbomachinery

Technical Conference and Exposition, GT2016- 57021, 1 - 16.

El-jummah, A. M., Andrews, G. E. and Staggs, J. E. J. 2016b. Impingement/Effusion

Cooling Wall Heat Transfer: Conjugate Heat Transfer Computational Fluid Dynamic

Predictions. Proc. ASME Turbo Expo: Turbomachinery Technical Conference &

Exposition, GT2016- 56961, 1 - 12.

El-jummah, A. M., Abdul Hussain, R. A. A., Andrews, G. E. and Staggs, J. E. J. 2013.

Conjugate Heat Transfer CFD Predictions of the Surface Averaged Impingement Heat

Transfer Coefficients for Impingement Cooling with Backside Cross-flow. Proc. ASME

IMECE Conference, IMECE-63580, 1 - 14.

Florschuetz, L. W., Metzger, D. E. and Su, C. C. 1984. Heat Transfer Characteristics for

Jet Array Impingement With Initial Cross-Flow. ASME J. Heat Transfer, 106, 34 - 41.

Fluent, I. 2009. ANSYS Fluent User's Gude. Release 12.0, Fluent In., Lebanon, NH.

Incropera, F. P., Dewitt, D. P., Bergman, T. L. and Lavine, A. S. 2007. Fundamentals of

Heat and Mass Transfer, Hoboken, USA, John Wiley & Sons.

Kini, C. R., Shenoy, B. S. and Sharma, N. Y. 2011. A Computational Conjugate Thermal

Analysis of HP Stage Turbine Blade Cooling with Innovative Cooling Passage

Geometries. Proc. Worid Congress Eng., WCE III, 1 - 6.

Launder, B. E. and Spalding, D. B. 1974. The Numerical Computation of Turbulent

Flows. North-Holland Computer Methods in Applied Mechanics and Engineering, 3, 269

- 289.

Ma C., Wang, J., Zang, S. and Ji, Y. 2014. Comparative Study of Impinging Jet Array

Heat Transfer on a Flat Plate Cooled by Superheated Steam and Air. Proc. ASME Turbo

Expo, GT-25493, 1 - 9.

Mills, A. F. 1999. Basic Heat and Mass Transfer, New Jersey, USA, Prentice Hall.

Nuutinen, M., Kaario, O. and Larmi, M. 2009. Advances in Variable Density Wall

Functions for Turbulent Flow CFD-Simulations, Emphasis on Heat Transfer. SAE

International, 2009-01-1975, 1 - 16.

Oguntade, H. I., Andrews, G. E., Burns, A. D., Ingham, D. B. and Pourkashanian, M. M.

Improved Trench Film Cooling WIth Shaped Trench Outlets. Trans. ASME J.

Turbomachinery, 135, 1 - 10.

Panda, R. K. and Prasad, B. V. S. S. S. 2012. Conjugate Heat Transfer from Flat Plate

with Combined Impingement and Film Cooling. Proc. ASME Turbo Expo, GT-68830, 1 -

Pope, S. B. 2000. Turbulent Flows, UK, Cambridge University Press.

Sharif, M. A. R. and Mothe, K. K. 2009. Evaluation of Turbulent Models in the

Prediction of Heat Transfer Due to Slot-Jet Impingement on Plane Concave Surfaces.

Taylor & Franscis Numerical Heat Transfer, Part B, 55, 273 - 294.

Sharif, M. A. R. and Mothe, K. K. 2010. Parametric Study of Turbulent Slot-Jet

Impingement Heat transfer from Concave Cylindrical Surfaces. Elsevier Int. J. Thermal

Sciences, 49, 428 - 442.

Sparrow, E. M. 1965. Radiation Heat Transfer Between Surfaces. Advances in Heat

Transfer, Academic Press, New York and London, 2, 399 - 452.

Spring, S., Xing, Y. and Weigand, B. 2012. Experimental and Numerical Study of Heat

Transfer from Arrayof Impinging Jets with Surface Ribs. ASME J. Heat Transfer, 134,1-

Tennehill, J. C., Anderson, D. A. and Pletcher, R. H. 1997. Computational Fluid

Mechanics and Heat Transfer, Second Edition, USA, Taylor & Franscis.

Tennekes, H. and Lumley, J. L. 1992. A First Course in Turbulence, Cambridge,

England, The MIT Press.

Van Treuren, K. W., Wang, Z., Ireland, P. T. and Jones, T. V. 1994. Detailed

Measurements of Local Heat Transfer Coefficient and Adiabatic Wall Temperature

Beneath an Array of Impinging Jets. Trans. ASME J. Turbomachinery, 116, 369 - 374.

Versteeg, H. K. and Malalasekera, W. 2007. An Introduction to Computational Fluid

Dynamics: The Finite Volume Method, Harlow, England, Pearson, Prentice Hall.

Wang, X., Liu, R., Bai, X. and Yao, J. 2011. Numerical Study on Flow and Heat Transfer

Characteristics of Jet Impingement. Proc. ASME Turbo Expo., GT-45287, 1 - 10.

Ward Smith, A. J. 1971. Pressure Losses in Ducted Flows: A Unified Treatment of the

Flow and Pressure Drop Characteristics of Constrictions Having Orifices With Square

Edges. Butterworths, London, Part 4, 135 - 191.

Zhang, C., Wang, Z., Liu, J. and An, B. 2013. The Effects Biot Number on the Conjugate

Film Cooling Effectiveness Under Different Blowing Ratios. Proc. ASME Turbo Expo, GT-94041, 1 - 9.

Published
2016-06-27
How to Cite
A. M. El-jummah, U. A. Mukhtar, & M. K. Adam. (2016). Computational Fluid Dynamic Procedures for Grid Generation and Solution-Induced Cooling Applied to Gas Turbine Hot Walls. Annals of Borno, 26(1), 95-112. Retrieved from http://journals.unimaid.edu.ng/index.php/annals_of_Borno/article/view/29