Effect of Speed Ratio on the Performance and Flow Field of a Counter Rotating Turbine

Effect of Speed Ratio on the Performance and Flow Field of a Counter Rotating Turbine

Available online at www.sciencedirect.com ScienceDirect Energy Procedia 54 (2014) 580 – 592 © 2014 Rayapati Subbarao. Published by Elsevier Ltd. Thi...

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Available online at www.sciencedirect.com

ScienceDirect Energy Procedia 54 (2014) 580 – 592

© 2014 Rayapati Subbarao. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). Selection and peer-review under responsibility of Organizing Committee of ICAER 2013

1876-6102 © 2014 Rayapati Subbarao. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). Selection and peer-review under responsibility of Organizing Committee of ICAER 2013 doi:10.1016/j.egypro.2014.07.299

Rayapati Subbarao and M. Govardhan / Energy Procedia 54 (2014) 580 – 592

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References [1] Wintucky WT, Stewart WL. Analysis of two-stage counter-rotating turbine efficiencies in terms of work and speed requirements. NACA Report 1957;RM E57L05. [2] Ozgur C, Nathan GK. Study of contra-rotating turbines based on design efficiency. Journal of Basic Engineering 1971;93:395-404. [3] Louis JF. Axial flow contra-rotating turbines. ASME paper 1985;85-GT-218. [4] Ji LC, Quan XB, Wel L, Xu JZ. A vaneless counter rotating turbine design towards limit of specific work ratio. ISABE paper 2001;20011062. [5] Zhao QJ, Wang HS, Zhao XL, Xu JZ. Numerical analysis of 3-D unsteady flow in a vaneless counter rotating turbine. Journal of Engineering Thermophysics 2007;1(3):352-358. [6] Nath G. Non-free vortex flow in contra-rotating axial rotating fans. Ind. J. Technology 1969;7:379–385. [7] Sharma PB, Pundhir DS, Chaudhary KK. A study of speed ratio affecting the performance of a contra rotating axial compressor stage. Defence Science Journal 1991;41(2):165-180. [8] Chen YY, Liu B, Xiuan Y, Xiang XR. A study of speed ratio affecting the performance of a contra-rotating axial compressor. Journal of Aerospace Engineering 2008;222:985-991. [9] Dring RP, Joslyn HD, Blair MF. The effect of inlet turbulence and rotor/stator interactions on the aerodynamics and heat transfer of large scale rotating turbine model. NASA Report 1987;CR 179469.