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Abstract
Flow field in a practical aero gas turbine combustor is investigated, under isothermal flow conditions. Simulation has been carried out using commercial CFD software, FLUENT. Complete combustor, starting from compressor exit to turbine inlet, has been modelled using hexahedral dominant grid. All the complicated features of the combustor, including the swirler, have been modelled. Based on the isothermal flow analysis results of the baseline configuration, changes had been made to various air injection holes of the combustor liner, to improve the flow field. Modification on the primary and dilution holes of the liner, by incorporating canted chutes, has been studied. The effect of chuted holes on the jet penetration, mass flow distribution on the annuli and pressure loss is presented. Particular emphasis is given to achieving the proper primary zone recirculation pattern and the jet angle during this study.
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References
- Anand, M.S. and Priddin, C.H., "Combustion CFD - A Key Driver to Reducing Development Cost and Time", Fifteenth International Symposium on Air Breathing Engines, Bangalore, India, ISABE 2001- 1087.
- Crocker, D.D., Nickolaus, D. and Smith, C.E., "CFD Modeling of a Gas Turbine Combustor from Compressor exit to Turbine Inlet", ASME-98-GT-184, Journal of Engineering for Gas Turbines and Power, Vol.121, January 1999, pp 89-95.
- Liu, N. S., Shih, T. H. and Wey, T., "Comprehensive Combustion Modeling and Simulation: Recent Progress at NASA Glenn Research Center", ISABE- 2007-1268.
- Motsamai, O.S., Visse,r J.A., Morris, M. and De Kock, D.J., "An Efficient Strategy for the Design Optimization of Combustor Exit Temperature Profile", GT2006-91325, ASME Turbo Expo 2006, Power for Land Sea and Air, May 8-11, 2006, Barcelona, Spain.
- Tangarila, V., Tolpadi, A., Danis, A. and Mongia, H., "Parametric Modeling Approach to Gas Turbine Combustor Design", ASME IGTI Conference 2000, 2000-GT-0129.
- Carrotte, J.F., Griffithe, J.P. and Spencer, A., "Primary Jet Characteristics within an Isothermal Gas Turbine Combustor", ASME Paper 2001, 2001-GT- 0057.
- McGuirk, J.J. and Spencer, A., "Coupled and Uncoupled CFD Prediction of the Characteristics of Jets from Combustor Air Admission Ports", ASME Paper 2000, 2000-GT-125.
- Sivaramakrishna, G., Muthuveerappan, N., Venkataraman Shankar and Sampathkumaran, T.K., "Combustor Geometry Optimization Studies Using CFD Techniques", Fifteenth International Symposium on Air Breathing Engines, Bangalore, India, ISABE- 2001-1089.
- Sivaramakrishna, G., Muthuveerappan, N., Venkataraman Shankar, Sampathkumaran, T.K., "CFD Modeling of the Aero Gas Turbine Combustor", Proceedings of ASME Turbo Expo 2001, 2001-GT-0063.
- Srinivasa Rao, M., Sivaramakrishna, G., Muthuveerappan, N., Kishore Kumar, S. and Venkataraman Shankar., "CFD Analysis of an Aero Gas Turbine Combustor -Validation and Experiments", Proceedings of ICONICE-2007, Hyderabad, India, pp. 813- 817.
- Eccles, N.C. and Priddin, C.H., "Accelerated Combustion Design Using CFD", 1999, XIV ISABE Paper 99-7094.
- Birkby, P., Cant, R.S., Dawes, W.N., Demargne, A.A.J., Dhanasekaran, P.C., Kellar, W.P., Rycroff, N.C., Savill, A.M., Eggels, R.L.G.M. and Jennions, I.K., "CFD Analysis of a Complete Industrial Lean Premixed Gas Turbine Combustor", ASME Paper 2000-GT-131.
- Lai, M.K., Reynolds, R.S. and Armstrong, J., "CFDBased, Parametric, Design Tool for Gas Turbine Combustors from Compressor Deswirl Exit to Turbine Inlet", 2002, ASME Paper GT-2002-30090.
- Lefebvre, A.H., "Gas Turbine Combustion", Hemisphere Publishing Corp, USA, 1993.
- "FLUENT 6.2 User Guide", 2006, Lebanon, NH, USA, Fluent Inc.
References
Anand, M.S. and Priddin, C.H., "Combustion CFD - A Key Driver to Reducing Development Cost and Time", Fifteenth International Symposium on Air Breathing Engines, Bangalore, India, ISABE 2001- 1087.
Crocker, D.D., Nickolaus, D. and Smith, C.E., "CFD Modeling of a Gas Turbine Combustor from Compressor exit to Turbine Inlet", ASME-98-GT-184, Journal of Engineering for Gas Turbines and Power, Vol.121, January 1999, pp 89-95.
Liu, N. S., Shih, T. H. and Wey, T., "Comprehensive Combustion Modeling and Simulation: Recent Progress at NASA Glenn Research Center", ISABE- 2007-1268.
Motsamai, O.S., Visse,r J.A., Morris, M. and De Kock, D.J., "An Efficient Strategy for the Design Optimization of Combustor Exit Temperature Profile", GT2006-91325, ASME Turbo Expo 2006, Power for Land Sea and Air, May 8-11, 2006, Barcelona, Spain.
Tangarila, V., Tolpadi, A., Danis, A. and Mongia, H., "Parametric Modeling Approach to Gas Turbine Combustor Design", ASME IGTI Conference 2000, 2000-GT-0129.
Carrotte, J.F., Griffithe, J.P. and Spencer, A., "Primary Jet Characteristics within an Isothermal Gas Turbine Combustor", ASME Paper 2001, 2001-GT- 0057.
McGuirk, J.J. and Spencer, A., "Coupled and Uncoupled CFD Prediction of the Characteristics of Jets from Combustor Air Admission Ports", ASME Paper 2000, 2000-GT-125.
Sivaramakrishna, G., Muthuveerappan, N., Venkataraman Shankar and Sampathkumaran, T.K., "Combustor Geometry Optimization Studies Using CFD Techniques", Fifteenth International Symposium on Air Breathing Engines, Bangalore, India, ISABE- 2001-1089.
Sivaramakrishna, G., Muthuveerappan, N., Venkataraman Shankar, Sampathkumaran, T.K., "CFD Modeling of the Aero Gas Turbine Combustor", Proceedings of ASME Turbo Expo 2001, 2001-GT-0063.
Srinivasa Rao, M., Sivaramakrishna, G., Muthuveerappan, N., Kishore Kumar, S. and Venkataraman Shankar., "CFD Analysis of an Aero Gas Turbine Combustor -Validation and Experiments", Proceedings of ICONICE-2007, Hyderabad, India, pp. 813- 817.
Eccles, N.C. and Priddin, C.H., "Accelerated Combustion Design Using CFD", 1999, XIV ISABE Paper 99-7094.
Birkby, P., Cant, R.S., Dawes, W.N., Demargne, A.A.J., Dhanasekaran, P.C., Kellar, W.P., Rycroff, N.C., Savill, A.M., Eggels, R.L.G.M. and Jennions, I.K., "CFD Analysis of a Complete Industrial Lean Premixed Gas Turbine Combustor", ASME Paper 2000-GT-131.
Lai, M.K., Reynolds, R.S. and Armstrong, J., "CFDBased, Parametric, Design Tool for Gas Turbine Combustors from Compressor Deswirl Exit to Turbine Inlet", 2002, ASME Paper GT-2002-30090.
Lefebvre, A.H., "Gas Turbine Combustion", Hemisphere Publishing Corp, USA, 1993.
"FLUENT 6.2 User Guide", 2006, Lebanon, NH, USA, Fluent Inc.