Numerical Analysis of Film Cooling on Gas Turbine Blades
Date
2018-11-15
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Mechanical and Production Engineering, Islamic University of Technology, Board Bazar, Gazipur, Bangladesh
Abstract
Various papers and research works regarding film cooling performance were studied. Parameters, conditions and geometry factors that affect the film cooling effectiveness were analyzed. The objective was to see how modifications such as dual row of anti-vortex hole configuration, and diffuser shaped anti-vortex configuration affected the overall cooling effectiveness, when compared to the performance for the conventional single row of cylindrical holes. The basis of comparison was film cooling applied over a flat plate, and the resulting cooling effectiveness produced. The numerical study was executed on CFX package. Validation of the simulation technique was attempted with reference to the experimental works of A.K Sinha in “Film Cooling Effectiveness Downstream of a Single Row of Holes with Variable Density Ratio”.
Description
Supervised by Prof. Dr. Hamidur Rahman
Keywords
Citation
1) An advanced impingement/film cooling scheme for gas turbines – numerical study A. Immarigeon and I. Hassan Department of Mechanical and Industrial Engineering, Concordia University, Montre´al, Canada. 2) Film Cooling Effectiveness of an Advanced-Louver Cooling Scheme for Gas Turbines X. Z. Zhang and I. Hassan Concordia University, Montréal, Québec H3G 1M8, Canada. 3) Flow Visualization of Multi-Hole Film-Cooling Flow under Varying Freestream Turbulence Levels Timothy W. Repko, Andrew C. Nix, S. Can Uysal, Andrew T. Sisler Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV, USA. 4) Gas Turbine Film Cooling D. G. Bogard University of Texas, Austin, Texas 78712-0292 and K. A. Thole Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24060. 5) Investigation on the Film Cooling Performance of Diffuser Shaped Holes with Different Inclination Angles Ying-Ni Zhai, Cun-Liang Liu*, Yi-Hong He and Zhi-Xiang Zhou 6) Investigations of Trenched Film Hole Orientation Angle on Film Cooling Effectiveness Krishna Anand V.G and Parammasivam K.M 7) Mechanism of Film Cooling with One Inlet and Double Outlet Hole Injection at Various Turbulence Intensities Guangchao Li, Yukai Chen, Zhihai Kou, Wei Zhang and Guochen Zhang 8) Unsteady Simulations of a Film Cooling Flow from an Inclined Cylindrical Jet Sung In Kim and Ibrahim Hassan Concordia University, Montreal, Quebec H3G 1M8, Canada 9) Film-Cooling Effectiveness Downstream of a Single Row of Holes with Variable Density Ratio