Labyrinth seal CFD calculation and temperature measurement investigation
Abstract
This article presents currently obtained results from CFD analysis of the labyrinth seals of an aircraft turbine engine. The process of describing a geometry, grid for numerical calculation and boundary conditions are described. Numerical simulations were performed for the assumed boundary conditions. The presented results show total temperature differences in labyrinth seals compared to published results. An experimental verification of the CFD analysis was also performed to clarify the numerical simulation results. It was based on the labyrinth seal measurement stand. The final part of this study is dedicated to the discussion and the following possible activities on this topic.
Keyword : aircraft turbine engine, labyrinth seal, simulation, measurement, total temperature, static pressure
How to Cite
Čížek, M., Klír, V., Steinbauer, P., & Vampola, T. (2022). Labyrinth seal CFD calculation and temperature measurement investigation. Aviation, 26(2), 96–103. https://doi.org/10.3846/aviation.2022.16886
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
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Čížek, M., & Pátek, Z. (2020). On CFD investigation of radial clearance of labyrinth seals of a turbine engine. Acta Polytechnica, 60(1). https://doi.org/10.14311/AP.2020.60.0038
Čížek, M., Vampola, T., & Popelka, L. (2020a). Comparison of labyrinth seal calculation and real aircraft turbine engine measurement. In Proceedings of Topical Problem of Fluid Mechanics 2020 (pp. 19–26). Prague. https://doi.org/10.14311/TPFM.2020.003
Čížek, M., Pátek, Z., & Vampola, T. (2020b). Aircraft turbine engine labyrinth seal CFD sensitive analysis. Aerospace Science and Engineering, 10(19), 6830. https://doi.org/10.3390/app10196830
Čížek, M., & Vampola, T. (2020). Labyrinth seal of aircraft turbine engine air flow calculation at High Viskosity. Acta Mechanica Slovaca, 23(4), 6–12. https://doi.org/10.21496/ams.2020.011
Denecke, J., Schramm, V., Kim, S., & Wittig, S. (2002). Influence of rub-grooves on labyrinth seal leakage. In ASME Turbo Expo 2002, Power for Land, Sea, and Air (Vol. 3, pp. 771–779). ASME. https://doi.org/10.1115/GT2002-30244
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Fürst, J. (2016). Numerical simulation of flows through Labyrinth seals. Applied Mechanics and Materials, 821, 16–22. https://doi.org/10.4028/www.scientific.net/AMM.821.16
Hughes, I., & Hase, T. (2010). Measurements and their uncertainties: A practical guide to modern error analysis. Oxford University Press.
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Jia, X., Zhang, H., Zheng, Q., Fan, Sh., & Tian, Z. (2019). Investigation on rotor-labyrinth seal system with variable rotating speed. International Journal of Turbo & Jet-Engine, 36(1). https://doi.org/10.1515/tjj-2016-0066
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Kmoch, P. (2002). Aircraft engines theory. University of Defence in Brno.
Kurzke, J., & Halliwell, I. (2018). Propulsion and power. Springer. https://doi.org/10.1007/978-3-319-75979-1
Li, Y., Zhang, Z., Hao, X., & Yin, W. (2018). A measurement system for time constant of thermocouple sensor based on high temperature furnace. Applied Sciences, 8(12), 2585. https://doi.org/10.3390/app8122585
Martin, H. M. (1908). Labyrinth packings. Engineering, 85, 35–38.
Romanik, G., Jaszak, P., & Rogula, J. (2019). Cooperation of the PTFE sealing ring with the steel ball of the valve subjected to durability test. Open Engineering, 9(1). https://doi.org/10.1515/eng-2019-0028
Selvaraji, M., Sam, P. J., & Nirmal, N. (2007). Optimization of labyrinth seal for screw compressor. In ASME/JSME 2007 Thermal Engineering Summer Heat Transfer Conference (Vol. 1, pp. 969–975). Vancouver, British Columbia, Canada. https://doi.org/10.1115/HT2007-32275
Stoff, H. (1980). Incompressible flow in a labyrinth seal. Journal of Fluid Mechanics, 100(4). https://doi.org/10.1017/S0022112080001437
Subramanian, S., Sekhar, A. S., & Prasad, B. V. S. S. S. (2015). Influence of combined radial location and growth on the leakage performance of a rotating labyrinth gas turbine seal. Journal of Mechanical Science and Technology, 29(6), 2535–2545. https://doi.org/10.1007/s12206-015-0545-8
Sultanian, B. K. (2018). Gas turbine: Internal flow systems modeling. Cambridge University Press. https://doi.org/10.1017/9781316755686
Ščeglajev, A. V. (1983). Steam turbines. Státní nakladatelství technické literatury. Czech Technical Books Publishing.
Tong, S. K., & Kyu, S. Ch. (2009). Comparative analysis of the influence of labyrinth seal configuration on leakage behavior. Journal of Mechanical Science and Technology, 23(10). https://doi.org/10.1007/s12206-009-0733-5
Wu, T., & Andrés, L. S. (2018). Leakage and dynamic force coefficients for two labyrinth gas seals: Teeth-on-Stator and interlocking teeth configurations. A computational fluid dynamics approach to their performance. Engineering for Gas Turbines and Power, 141(4). https://doi.org/10.1115/GT2018-75205
Bloch, H. P., & Singh, M. P. (2009). Steam turbines design, application and rerating. McGraw-Hill.
Campagnoli, E., & Desando, A. (2019). Validation of a CFD Model of a labyrinth seal for low pressure turbines using a fluid-thermal tool tuned through experimental measurements. Instrumentation Mesure Métrologie, 18(6), 509–516. https://doi.org/10.18280/i2m.180601
Childs, P. R. N. (2001). Practical temperature measurement. Butterworth-Heinemann. https://doi.org/10.1016/B978-075065080-9/50001-0
Chorin, A. J. (1968). Numerical solution of Navier-Stokes equations. Mathematics of Computation, 22, 745–762. https://doi.org/10.1090/S0025-5718-1968-0242392-2
Čížek, M., & Pátek, Z. (2020). On CFD investigation of radial clearance of labyrinth seals of a turbine engine. Acta Polytechnica, 60(1). https://doi.org/10.14311/AP.2020.60.0038
Čížek, M., Vampola, T., & Popelka, L. (2020a). Comparison of labyrinth seal calculation and real aircraft turbine engine measurement. In Proceedings of Topical Problem of Fluid Mechanics 2020 (pp. 19–26). Prague. https://doi.org/10.14311/TPFM.2020.003
Čížek, M., Pátek, Z., & Vampola, T. (2020b). Aircraft turbine engine labyrinth seal CFD sensitive analysis. Aerospace Science and Engineering, 10(19), 6830. https://doi.org/10.3390/app10196830
Čížek, M., & Vampola, T. (2020). Labyrinth seal of aircraft turbine engine air flow calculation at High Viskosity. Acta Mechanica Slovaca, 23(4), 6–12. https://doi.org/10.21496/ams.2020.011
Denecke, J., Schramm, V., Kim, S., & Wittig, S. (2002). Influence of rub-grooves on labyrinth seal leakage. In ASME Turbo Expo 2002, Power for Land, Sea, and Air (Vol. 3, pp. 771–779). ASME. https://doi.org/10.1115/GT2002-30244
European Aviation Safety Agency. (2014). Type certificate data sheet, GE M601/H80 series turboprop engines. https://www.easa.europa.eu/document-library/type-certificates/engine-cs-e/easae070-ge-m601h80-series-turboprop-engines
Fürst, J. (2016). Numerical simulation of flows through Labyrinth seals. Applied Mechanics and Materials, 821, 16–22. https://doi.org/10.4028/www.scientific.net/AMM.821.16
Hughes, I., & Hase, T. (2010). Measurements and their uncertainties: A practical guide to modern error analysis. Oxford University Press.
Ilieva, G. (2016). Labyrinth seals – a promising and effective design. International Journal of Science and Research, 5(4). https://doi.org/10.21275/v5i4.NOV162352
Ilieva, G., & Pirovsky, C. (2019). Labyrinth seals with application to turbomachinery. Materials Science & Engineering Technology, 50(5), 479–491. https://doi.org/10.1002/mawe.201900004
Jia, X., Zhang, H., Zheng, Q., Fan, Sh., & Tian, Z. (2019). Investigation on rotor-labyrinth seal system with variable rotating speed. International Journal of Turbo & Jet-Engine, 36(1). https://doi.org/10.1515/tjj-2016-0066
Kerrebrock, J. L. (1992). Aircraft engines and gas turbines. Massachusetts Institute of Technology.
Kmoch, P. (2002). Aircraft engines theory. University of Defence in Brno.
Kurzke, J., & Halliwell, I. (2018). Propulsion and power. Springer. https://doi.org/10.1007/978-3-319-75979-1
Li, Y., Zhang, Z., Hao, X., & Yin, W. (2018). A measurement system for time constant of thermocouple sensor based on high temperature furnace. Applied Sciences, 8(12), 2585. https://doi.org/10.3390/app8122585
Martin, H. M. (1908). Labyrinth packings. Engineering, 85, 35–38.
Romanik, G., Jaszak, P., & Rogula, J. (2019). Cooperation of the PTFE sealing ring with the steel ball of the valve subjected to durability test. Open Engineering, 9(1). https://doi.org/10.1515/eng-2019-0028
Selvaraji, M., Sam, P. J., & Nirmal, N. (2007). Optimization of labyrinth seal for screw compressor. In ASME/JSME 2007 Thermal Engineering Summer Heat Transfer Conference (Vol. 1, pp. 969–975). Vancouver, British Columbia, Canada. https://doi.org/10.1115/HT2007-32275
Stoff, H. (1980). Incompressible flow in a labyrinth seal. Journal of Fluid Mechanics, 100(4). https://doi.org/10.1017/S0022112080001437
Subramanian, S., Sekhar, A. S., & Prasad, B. V. S. S. S. (2015). Influence of combined radial location and growth on the leakage performance of a rotating labyrinth gas turbine seal. Journal of Mechanical Science and Technology, 29(6), 2535–2545. https://doi.org/10.1007/s12206-015-0545-8
Sultanian, B. K. (2018). Gas turbine: Internal flow systems modeling. Cambridge University Press. https://doi.org/10.1017/9781316755686
Ščeglajev, A. V. (1983). Steam turbines. Státní nakladatelství technické literatury. Czech Technical Books Publishing.
Tong, S. K., & Kyu, S. Ch. (2009). Comparative analysis of the influence of labyrinth seal configuration on leakage behavior. Journal of Mechanical Science and Technology, 23(10). https://doi.org/10.1007/s12206-009-0733-5
Wu, T., & Andrés, L. S. (2018). Leakage and dynamic force coefficients for two labyrinth gas seals: Teeth-on-Stator and interlocking teeth configurations. A computational fluid dynamics approach to their performance. Engineering for Gas Turbines and Power, 141(4). https://doi.org/10.1115/GT2018-75205