Computational Prediction of the Performance Map of a Transonic Axial Flow Compressor
DOI:
https://doi.org/10.37934/cfdl.14.3.1121Keywords:
Transonic, compressor, performance map, NASA 37 rotor, Off-design, Flow Separation, ANSYS, CFXAbstract
Aviation fuel efficiency is an important target for aviation industry. Aircraft engine compression ratio is a key factor to improve fuel consumption. Compression ratio can be increased using transonic compressor. In this study, performance prediction of a transonic axial compressor at design and off-design operating conditions is investigated numerically using ANSYS-CFX software. The compressor is NASA Rotor 37. Firstly, the performance at design point is predicted, where mesh independence study is performed to determine suitable mesh size. Three-dimensional flow details for meridional plane, blade-to-blade plane and airfoil surface are explored. The design point study successfully captured flow features such as shock waves and flow separation regions. When compared with experimental data, the predicted compressor pressure ratio deviation error is less than 5%. 3D flow details show that shock wave strength increases from hub to tip. The shock wave moves backward as we move from hub to tip indicating that the flow separation covers lesser portion of the blade. Secondly, off-design performance is predicted for various rotational speeds. A simple procedure is utilized to predict surge and choke limits. The predicted compressor map is compared with experimental data and it shows overall root mean square error less than 5%. The success of the method developed in this research make it a viable method to be used in the design phase of transonic compressors to evaluate the effect of design modifications for both design and off-design operating conditions.
References
Mobarak, Amin, Mostafa Shawky Abdel Moez, and Shady Ali. "Quasi Three-Dimensional Design for a Novel Turbo-Vapor Compressor and the Last Stage of a Low-Pressure Steam Turbine." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 85, no. 2 (2021): 1-13. https://doi.org/10.37934/arfmts.85.2.113
Jawad, Layth H., Shahrir Abdullah, Rozli Zulkifli, and Wan Mohd Faizal Wan Mahmood. "Numerical investigation on the effect of impeller trimming on the performance of a modified compressor." CFD Letters 5, no. 4 (2013): 174-184.
Gurunathan, Balamurugan A., Uswah Khairuddin, Nazrun Nabill Azlan Shah, and Ricardo Martinez-Botas. "Influence of Double Entry Volute on Incidence Angle Variation Under Steady Flow: Numerical Investigation." CFD Letters 12, no. 10 (2020): 75-89. https://doi.org/10.37934/cfdl.12.10.7589
Hawthorne, William R., ed. Aerodynamics of Turbines and Compressors. (HSA-1), Volume 1. Vol. 5204. Princeton University Press, 1964. https://doi.org/10.1515/9781400885985-003
Biollo, Roberto, and Ernesto Benini. "Recent advances in transonic axial compressor aerodynamics." Progress in Aerospace Sciences 56 (2013): 1-18. https://doi.org/10.1016/j.paerosci.2012.05.002
Tyacke, James, N. R. Vadlamani, W. Trojak, R. Watson, Y. Ma, and P. G. Tucker. "Turbomachinery simulation challenges and the future." Progress in Aerospace Sciences 110 (2019): 100554. https://doi.org/10.1016/j.paerosci.2019.100554
Hergt, Alexander, Joachim Klinner, Jens Wellner, Christian Willert, Sebastian Grund, Wolfgang Steinert, and Manfred Beversdorff. "The present challenge of transonic compressor blade design." Journal of Turbomachinery 141, no. 9 (2019). https://doi.org/10.1115/1.4043329
Pinto, Runa Nivea, Asif Afzal, Loyan Vinson D'Souza, Zahid Ansari, and AD3657327 Mohammed Samee. "Computational fluid dynamics in turbomachinery: a review of state of the art." Archives of Computational Methods in Engineering 24, no. 3 (2017): 467-479. https://doi.org/10.1007/s11831-016-9175-2
Nel, Philip. "Computational fluid dynamics-modelling of a multi-stage transonic axial-flow compressor." PhD diss., Stellenbosch: Stellenbosch University, 2017.
Li, Zhihui, and Xinqian Zheng. "Review of design optimization methods for turbomachinery aerodynamics." Progress in Aerospace Sciences 93 (2017): 1-23. https://doi.org/10.1016/j.paerosci.2017.05.003
Broichhausen, Klaus D., and Kai U. Ziegler. "Supersonic and transonic compressors: past, status and technology trends." In Turbo Expo: Power for Land, Sea, and Air, vol. 47306, pp. 63-74. 2005. https://doi.org/10.1115/GT2005-69067
Reid, Lonnie, and Royce D. Moore. Design and overall performance of four highly loaded, high speed inlet stages for an advanced high-pressure-ratio core compressor. No. NASA-TP-1337. 1978.
Reid, Lonnie, and Royce D. Moore. "Experimental study of low aspect ratio compressor blading." Journal of Engineering for Gas Turbines and Power 102, no. 4 (1980): 875-882. https://doi.org/10.1115/1.3230353
Suder, Kenneth L., Rodrick V. Chima, Anthony J. Strazisar, and William B. Roberts. "The effect of adding roughness and thickness to a transonic axial compressor rotor." In Turbo Expo: Power for Land, Sea, and Air, vol. 78835, p. V001T01A113. American Society of Mechanical Engineers, 1994. https://doi.org/10.1115/94-GT-339
Suder, Kenneth L. "Blockage development in a transonic, axial compressor rotor." Journal of Turbomachinery 120, no. 3 (1998): 465-476. https://doi.org/10.1115/1.2841741
Dunham, John. CFD Validation for Propulsion System Components (la Validation CFD des organes des propulseurs). Advisory Group For Aerospace Research And Development Neuilly-Sur-Seine (France), 1998.
Ameri, Ali A. NASA Rotor 37 CFD Code Validation. NASA CR-216235, National Aeronautics and Space Administration, Glenn Research Center, 2010. https://doi.org/10.2514/6.2009-1060
Epsipha, Pauline, Z. Mohammad, and A. A. Kamarul. "CFD investigation of transonic axial compressor rotor blade at various off-design conditions." Pertanika Journal of Science and Technology 24, no. 2 (2016): 451-463.
Islam, Asad, and Hongwei Ma. "Numerical study of probe parameters on performance of a transonic axial compressor." PLoS ONE 16, no. 1 (2021): e0245711. https://doi.org/10.1371/journal.pone.0245711
Ansys. "Ansys CFX." Ansys, Inc. 2022. https://www.ansys.com/products/fluids/ansys-cfx.
