3-D COMPUTATIONAL FLUID DYNAMIC ANALYSIS OF EFFECT OF TIP CLEARANCE ON THE PERFORMANCE OF IMPULSE TURBINE FOR WAVE ENERGY CONVERSION

Abstract

International Journal of Computational Engineering ScienceVol. 05, No. 01, pp. 113-132 (2004) No Access3-D COMPUTATIONAL FLUID DYNAMIC ANALYSIS OF EFFECT OF TIP CLEARANCE ON THE PERFORMANCE OF IMPULSE TURBINE FOR WAVE ENERGY CONVERSIONA. THAKKER, T. S. DHANASEKARAN, T. SETOGUCHI, and M. TAKAOA. THAKKERWave Energy Research Team, Department of Mechanical and Aeronautical Engineering, University of Limerick, Limerick, IrelandCorresponding author. Search for more papers by this author , T. S. DHANASEKARANWave Energy Research Team, Department of Mechanical and Aeronautical Engineering, University of Limerick, Limerick, Ireland Search for more papers by this author , T. SETOGUCHIDepartment of Mechanical Engineering, Saga University, 1 Honjo-machi, Saga-shi, Saga 840-8502, Japan Search for more papers by this author , and M. TAKAODepartment of Control Engineering, Matsue National College of Technology, 14-4 Nishiikuma-cho, Matsue-shi, Shane 690-8518, Japan Search for more papers by this author https://doi.org/10.1142/S1465876304002290Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractThis paper depicts numerical analysis on impulse turbine of 0.6 m diameter with fixed guide vanes for wave energy conversion. From the earlier investigations, it is found that one of the reasons for the mismatch between computed and experimental data is due to neglecting tip clearance effect. Hence, a three-dimensional (3-D) model with tip clearance has been generated with structured grids to predict the internal flow and performance of the turbine. As a result, it is found that the comparison between computed and experimental data is good. Computation has been carried out for various tip clearances to understand the effect of tip clearance leakage flow on such unconventional turbine. The change in flow behavior in the turbine blade passage due to tip clearance flow has been studied by comparing the results with without tip clearance, which is impossible by experiments. It is predicted that the efficiency of the turbine has been reduced about 4%, due to tip clearance flow at higher flow coefficients. References T. W. Kim et al. , Aerodynamic performance of an impulse turbine with self-pitch-controlled guide vanes for wave power generator , Proceedings of the 1st KSMY-JSME Thermal and Fluids Engineering Conference, Korea ( 1988 ) . Google ScholarH. Maeda, S. Santhakumar and S. Setoguchi, Renewable Energy 17 (1999) pp. 533–547. Google Scholar S. A. Sjolander , Secondary and tip-clearance flows in axial turbines: Physics of tip-clearance flows-I , Von Karman Institute for Fluid Dynamics, Lecture Series 1997-01 ( 1997 ) . Google Scholar Lakshminarayana, B., (1996), "Fluid dynamics and heat transfer of turbomachinery", John Wiley & Sons, Inc . Google Scholar T. S. Kim et al. , Proceedings of the 10th ISOPE, Seattle, USA, May 28- June 2 ( 2000 ) . Google Scholar A. Thakker et al. , Proceedings of the 11th ISOPE, Stavanger, Norway, June 17-22, 2001 ( 2001 ) . Google Scholar A. Thakker , P. Frawley and E. Sheik Bajeet , Proceedings of the 11th ISOPE, Stavanger, Norway, June 17-22 ( 2001 ) . Google ScholarJ. K. Watterson and S. Raghunathan, JSME International Journal, Series B 41(1), 199 (1998). Google Scholar S. Raghunathan , T. Setoguchi and K. Kaneko , Proceedings Offshore and Mechanics and Polar Engineering Conference ( Edinburgh, UK , 1991 ) . Google ScholarR. Tagori, C. Arakawa and M. Suzuki, Research in Natural Energy SPEY 20 (1987) pp. 127–132. Google ScholarS. Raghunathan, Prog. Aerospace Sci. 31, 335 (1995). Crossref, Google ScholarT. Setoguchiet al., Renewable Energy 23, 261 (2001). Crossref, Google Scholar FiguresReferencesRelatedDetails Recommended Vol. 05, No. 01 Metrics History PDF download