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Author : John J. Schauer
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.3/5 (91 download)
Download or read book Film Cooling Heat Transfer with High Free Stream Turbulence written by John J. Schauer and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Edward Mayhew
Publisher :
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.:/5 (62 download)
Download or read book An Experimental Investigation of the Effect of Freestream Turbulence on Film Cooling Using Thermochromic Liquid Crystal Thermography written by James Edward Mayhew and published by . This book was released on 1999 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (317 download)
Download or read book Unsteady High Turbulence Effects on Turbine Blade Film Cooling Heat Transfer Performance Using a Transient Liquid Crystal Technique written by and published by . This book was released on 2000 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (227 download)
Download or read book Hydrodynamic Effects on Heat Transfer for Film-Cooled Turbine Blades written by and published by . This book was released on 1992 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to develop a technique for generating very high freestream turbulence levels and to determine resulting effects on turbulent boundary layer and film cooling flows. Also, included in this project was the development of a simultaneous temperature/velocity measurement technique. All of these objectives were accomplished as described below; however, film cooling flows were studied only for minimal freestream turbulence levels. Several turbulence generating devices were studied to determine the maximum turbulence levels. Tests indicated that high velocity jets in cross-flow generated turbulence levels, Tu, which ranged from Tu = 20% to 11% over a 0.65 m distance. The turbulence integral length scales for this flow were on the order of boundary layer thickness. High freestream turbulence levels caused significant increases in surface heat flux. Various correlations for freestream turbulence affects on surface heat flux were evaluated. None of these correlations were adequate; however, with slight modifications two of the correlations reasonably collapsed the data. Thermal field measurements of simulated film cooling flows with a minimal freestream turbulence level indicated that the jet detachment/reattachment scaled with the momentum flux ratio.
Author : Je-Chin Han
Publisher : CRC Press
ISBN 13 : 1439855684
Total Pages : 892 pages
Book Rating : 4.4/5 (398 download)
Download or read book Gas Turbine Heat Transfer and Cooling Technology, Second Edition written by Je-Chin Han and published by CRC Press. This book was released on 2012-11-27 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for engineers and researchers, Gas Turbine Heat Transfer and Cooling Technology, Second Edition has been completely revised and updated to reflect advances in the field made during the past ten years. The second edition retains the format that made the first edition so popular and adds new information mainly based on selected published papers in the open literature. See What’s New in the Second Edition: State-of-the-art cooling technologies such as advanced turbine blade film cooling and internal cooling Modern experimental methods for gas turbine heat transfer and cooling research Advanced computational models for gas turbine heat transfer and cooling performance predictions Suggestions for future research in this critical technology The book discusses the need for turbine cooling, gas turbine heat-transfer problems, and cooling methodology and covers turbine rotor and stator heat-transfer issues, including endwall and blade tip regions under engine conditions, as well as under simulated engine conditions. It then examines turbine rotor and stator blade film cooling and discusses the unsteady high free-stream turbulence effect on simulated cascade airfoils. From here, the book explores impingement cooling, rib-turbulent cooling, pin-fin cooling, and compound and new cooling techniques. It also highlights the effect of rotation on rotor coolant passage heat transfer. Coverage of experimental methods includes heat-transfer and mass-transfer techniques, liquid crystal thermography, optical techniques, as well as flow and thermal measurement techniques. The book concludes with discussions of governing equations and turbulence models and their applications for predicting turbine blade heat transfer and film cooling, and turbine blade internal cooling.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book Ninety Degree Skew Leading Edge Film Cooling Effectiveness, Heat Transfer, and Discharge Coefficients for Cylindrical Film Holes at High Free Stream Turbulence written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper studies the film effectiveness and heat transfer coefficients on a large scale symmetric circular leading edge with three rows of film holes. The film hole configuration focuses on a smaller injection angle of 20 deg and a larger hole pitch with respect to the hole diameter (P/d=7.86). The study includes four blowing ratios (M=1.0, 1.5, 2.0 and 2.5), two Reynolds numbers (Re-30,000 and 60,000), and two free stream turbulence levels (approximately Tu=1% and 20% depending on the Reynolds number). The measured discharge coefficients of the film holes were 0.62-0.69 and 0.39 -0.54 at the stagnation row and 0.54-0.59 and 0.47-0.52 at 21.5 deg the row, for the range of blowing ratios investigated and Re's of 60,000 and 30,000 respectively. A transient liquid crystal technique was used to obtain the film cooling effectiveness and the heat transfer coefficients. The distributions of film effectiveness and heat transfer coefficient are obtained with spatial resolutions of 0.6mm or 13% of the film cooling hole diameter. Results are presented for detailed and spanwise averaged values of film effectiveness and Frossling number. Blowing ratios investigated result in up to 2.8 times the lowest blowing ratio's film effectiveness. Increasing the Reynolds number from 30,000 to 60,000 results in increasing the effectiveness by up to 55% at high (20%)turbulence. Turbulence intensity has up to a 60% attenuation on effectiveness between rows at Re=30,000. The turbulence intensity has the same order of magnitude but opposite effect as Reynolds number, which also has the same order of magnitude effect as blowing ratio on the film effectiveness. A crossover from attenuation to improved film effectiveness after the second row of film holes is found for the high turbulence case as blowing ratio increases. The blowing ratio of two shows a spatial coupling of the stagnation row of film holes with the second row (2.15 deg) of film holes, which results in the highest Frossling num7.
Author : Basav Sen
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (358 download)
Download or read book Effects of injection hole geometry, high freestream turbulence, and surface roughness on film cooling heat transfer written by Basav Sen and published by . This book was released on 1995 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effects of Hole Length, Supply Plenum Geometry, and Freestream Turbulence on Film Cooling Performance written by and published by . This book was released on 2000 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Andrew Hayes
Publisher :
ISBN 13 : 9781321503920
Total Pages : 125 pages
Book Rating : 4.5/5 (39 download)
Download or read book An Experimental Investigation on the Effects of Freestream Turbulence Intensity on Film Cooling Effectiveness and Heat Transfer Coefficient for an Anti-vortex Hole written by Stephen Andrew Hayes and published by . This book was released on 2014 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert J. Juhasz
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book Combustor Liner Film Cooling in the Presence of High Free-stream Turbulence written by Albert J. Juhasz and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cheryl A. Martin
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (89 download)
Download or read book Numerical Simulations of Leading Edge Film Cooling Flows for Gas Tubine Airfoils written by Cheryl A. Martin and published by . This book was released on 1997 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert P. Campbell
Publisher : Ann Arbor, Mich. : University Microfilms International
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (387 download)
Download or read book Discrete Hole Film Cooling on a Convex Wall written by Robert P. Campbell and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1994 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Yavuzkurt
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.F/5 ( download)
Download or read book Full-coverage Film Cooling written by S. Yavuzkurt and published by . This book was released on 1979 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shih-Jiun Chen
Publisher :
ISBN 13 :
Total Pages : 534 pages
Book Rating : 4.:/5 (134 download)
Download or read book The Effect of Injection-stream Turbulence on Film Cooling Effectiveness Ad Heat Transfer Coefficients written by Shih-Jiun Chen and published by . This book was released on 1985 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Academic Press
ISBN 13 : 0128124121
Total Pages : 336 pages
Book Rating : 4.1/5 (281 download)
Download or read book Advances in Heat Transfer written by and published by Academic Press. This book was released on 2017-11-11 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Heat Transfer, Volume 49 provides in-depth review articles from a broader scope than in traditional journals or texts. Topics covered in this new volume include Heat Transfer in Rotating Cooling Channel, Flow Boiling and Flow Condensation in Reduced Gravity, Advances in Gas Turbine Cooling, and Advanced Heat Transfer Topics in Complex Duct Flows. While the articles in this series will be of great interest to mechanical, chemical and industrial engineers working in the field of heat transfer, the book is also ideal for those in graduate schools or industry, and even non-specialists interested in the latest research. Compiles the expert opinions of leaders in the industry Fills the information gap between regularly scheduled journals and university-level textbooks by providing in-depth review articles over a broader scope than in traditional journals or texts Essential reading for all mechanical, chemical and industrial engineers working in the field of heat transfer, or in graduate schools or industry
Author : James Marvin Warren
Publisher :
ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.:/5 (19 download)
Download or read book Velocity and Temperature Distributions, Turbulence Characteristics and Heat Transfer with Film Cooling and Variable Freestream Velocity: a Numerical and Experimental Study written by James Marvin Warren and published by . This book was released on 1971 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (318 download)
Download or read book Film Cooling and Turbine Blade Heat Transfer written by and published by . This book was released on 1982 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
