Compressor is one of the most parts of gas turbines that increase the pressure in the cycle of gas turbine. In regard to the fact that flow in compressor is influenced by positive pressure gradient and the nature of the flow at compressor is very complicated, exact aerodynamic design of compressor blades (whose task is transmission work to the flow) is vital. In this project, effects of maximum changes of backward and forward sweeps of a rotor blade of special transonic compressor over the performance curves, including the efficiency and pressure ratio, has surveyed. For 3d simulation of complex flow field of axial compressor the CFX software was utiliged. The results were compared with prior activities and soundness of that was certified then changes that above mentioned was exerted over the first stage rotor and change effects on performance parameters has surveyed. Results show us exert of changes that above mentioned causes to reduction of efficiency but if just the increase of pressure ratio intended the efficiency rises obviously.
Cumpsty, N. A. “Compressor Aerodynamic's”, Longman Scientific & Technical, New York : J. Wiley, 1989.
Breugelmans, F., Carels, Y., and Demuth, M. “Influence of Dihedral on the Secondary Flow in a Two-dimensional Compressor Cascade”, J. Eng. for Gas Turbine and Power, Vol. 106, No. 3, pp. 578-584, 1984.
Sasaki, T. and Breugelmans, F. “Comparison of Sweep and Dihedral Effects on Compressor Cascade Performance”, J.Turbomach., Vol. 120, No. 3, pp. 454-464, 1998.
Denton, J. “The Effects of Lean and Sweep on Transonic Fan Performance”, A Computational Study, Task Quarterly, Vol. 6, No.1, pp. 7–23, 2002.
Denton, J. D. and Xu, I. “The Effects of Lean and Sweep on Transonic Fan Performance”, The ASME Turbo Expo 2002: Power for Land, Sea, and Air, pp. 23-32. American Society of Mech. Eng. Digital Collection, 2002.
Chon, M.J., Ping, Li. and Kwang Yong, K. “Optimization of Blade Sweep in a Transonic Axial Compressor Rotor”, JSME Int. J., Series B, Vol. 48, No. 4, pp. 793-801, 2005.
Akira, O., Meng-Sing, L., and Shigeru, O. “High-Fidelity Swept and Leaned Rotor Blade Design Optimization, Using Evolutionary Algorithm”, 16th AIAA CFD Conference, Orlando, Florida, 2003.
Martin, H., Martin, E. and Jörg, B. “Impact of Transonic Compressor Rotor Leading Edge Shape on The Shock Structure Near The Casing”, The 10th Int. Symp. on Transport Phenomena And Dynamics of Rotating- Machinery Honolulu, Hawaii, March 07-11, 2004.
Bergner, J., Kablitz, S., Hennecke, D.K., Passrucker, H., and Steinhardt, E. “Influence of Sweep on The 3D Shock Structure in an Axial Transonic Compressor”, In ASME Turbo Expo 2005: Power for Land, Sea, and Air, pp. 343-352, 2005.
Vad, J., Kwedikha, A.RA., and Jaberg, H. “Effect of Blade Sweep on The Performance Characteristics of Axial Flow Turbo Machinery Rotors”, Department of Fluid Mechanics, Budapest University, 2006.
S-J Seo, S-M Choi, K-Y Kim. Design “Optimization of a Low-Speed Fan Blade with Sweep and Lean”, Proceedings of the Institution of Mechanical Engineers, Part A: J. Power and Energy, Vol. 222, No. 1, pp. 87-92, 2008.
Kwedikha, A. RA. “Aerodynamic Effects of Blade Sweep and Skew Applied To Rotors of Axial Flow Turbomachinery”, The Booklet of The Thesis Submitted for the Degree of Dissertation, Budapest University of Technology and Economics, 2009.
Rachel, F. and Bhaskar, R. “Application of Sweep to Low Pressure Turbine Cascade Blade for Tip Flow Containment”, American Institute of Aeronautics and Astronautics, Indian Institute of Technology-Bombay, Mumbai, 400076, AIAA 2012-3878,2012.
Janos, V. “Forward Blade Sweep Applied to Low-Speed Axial Fan Rotors of Controlled Vortex Design: An overview”, Department of Fluid Mechanics, J. Eng. for Gas Turbines and Power, Vol. 135, No. 1, 2013.
Neshat, M.A., Akhlaghi, M., and Fathi, A. “Investigating the Effect of Blade Sweep and Lean in one Stage of an Industrial Gas Turbine׳s Transonic Compressor”, Propulsion and Power Research, Vol. 4, No. 4, pp. 221-229, 2015.
Paresh Halder, A.S. “Marine Energy Turbine Performance Effect of Blade Sweep”, Wave Energy and Fluids Engineering Laboratory, The 5th Int. Conf. on Advances in Energy Research, ICAER, 2015.
Chang, H., Zhu, F., Jin, D., and GUI, X. “Effect of Blade Sweep on Inlet Flow in Axial Compressor Cascade”, Chinese J. Aeronautics, Vol. 28, No. 1, pp. 103-111, 2015.
Giesecke, D. Friedrichs, J., Stark, U., and Dierks, M. “Aerodynamic and Acoustic Performance of a Single Stage Axial Fan with Extensive Blade Sweep Designed to Limit Noise Emissions”, In ASME Turbo Expo 2016: Turbomachinery Tech. Conf. and Expo., pp. V001T09A004-V001T09A004. American Society of Mechanical Engineers, 2016..
Massimo, M. and Andrea, L. “Preliminary Investigation on the Effect of the Modification of the Sweep Angle At The Blade Tip Of Forward Swept Axial Fan”, Turbo Mach. Tech. Conf. and Expo., American Society of Mech. Engineers Digital Collection, 2017.
asadolahi ghahie, A., aghai togh, R., & yousefi, M. (2019). Numerical Investigation of the Effect of Rotor Sweep on the Performance of One- Stage Transonic Compressor of an Industrial Gas Turbine. Fluid Mechanics & Aerodynamics, 8(1), 143-160.
MLA
abdollah asadolahi ghahie; reza aghai togh; meysam yousefi. "Numerical Investigation of the Effect of Rotor Sweep on the Performance of One- Stage Transonic Compressor of an Industrial Gas Turbine". Fluid Mechanics & Aerodynamics, 8, 1, 2019, 143-160.
HARVARD
asadolahi ghahie, A., aghai togh, R., yousefi, M. (2019). 'Numerical Investigation of the Effect of Rotor Sweep on the Performance of One- Stage Transonic Compressor of an Industrial Gas Turbine', Fluid Mechanics & Aerodynamics, 8(1), pp. 143-160.
VANCOUVER
asadolahi ghahie, A., aghai togh, R., yousefi, M. Numerical Investigation of the Effect of Rotor Sweep on the Performance of One- Stage Transonic Compressor of an Industrial Gas Turbine. Fluid Mechanics & Aerodynamics, 2019; 8(1): 143-160.
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