Turbulent Flow and Heat Transfer in Turbine-blade Coolant Passages
Title | Turbulent Flow and Heat Transfer in Turbine-blade Coolant Passages PDF eBook |
Author | Mark Andrew Stephens |
Publisher | |
Pages | |
Release | 1996 |
Genre | Computational fluid dynamics |
ISBN |
Develops and validates a computational fluid dynamics (CFD) framework that can be used to analyze the three-dimensional, turbulent, compressible, rotating fluid flow and associated heat transfer of an internal coolant passage with ribs as a function of the design and operating conditions of gas turbine systems. Uses this framework to study the flow field and associated heat transfer for a number of configurations and operating conditions.
Analytical Investigation of Two Liquid Cooling Systems for Turbine Blades
Title | Analytical Investigation of Two Liquid Cooling Systems for Turbine Blades PDF eBook |
Author | Thomas W. Jackson |
Publisher | |
Pages | 32 |
Release | 1951 |
Genre | Aeronautics |
ISBN |
Blade-to-coolant Heat-transfer Results and Operating Data from a Natural-convection Water-cooled Single-stage Turbine
Title | Blade-to-coolant Heat-transfer Results and Operating Data from a Natural-convection Water-cooled Single-stage Turbine PDF eBook |
Author | Anthony J. Diaguila |
Publisher | |
Pages | 28 |
Release | 1951 |
Genre | Aeronautics |
ISBN |
Gas Turbine Heat Transfer and Cooling Technology, Second Edition
Title | Gas Turbine Heat Transfer and Cooling Technology, Second Edition PDF eBook |
Author | Je-Chin Han |
Publisher | CRC Press |
Pages | 892 |
Release | 2012-11-27 |
Genre | Science |
ISBN | 1439855684 |
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.
Effect of Diameter of Closed-end Coolant Passages on Natural-convection Water Cooling of Gas-turbine Blades
Title | Effect of Diameter of Closed-end Coolant Passages on Natural-convection Water Cooling of Gas-turbine Blades PDF eBook |
Author | Arthur N. Curren |
Publisher | |
Pages | 42 |
Release | 1956 |
Genre | Charts, diagrams, etc |
ISBN |
An experimental investigation on a water-cooled gas turbine with blade coolant-passage diameters ranging from 0.100 to 0.500 inch, corresponding to length-to-diameter ratios of 25.5 to 5.1, in various quadrants of the turbine. The investigation was conducted to determine (1) whether coolant-passage length-to-ratio has a significant effect on natural-convection heat-transfer correlation, and (2) whether turbine blade temperatures could be calculated with reasonable accuracy from a theoretical natural-convection heat-transfer correlation.
Review and Status of Heat-transfer Technology for Internal Passages of Air-cooled Turbine Blades
Title | Review and Status of Heat-transfer Technology for Internal Passages of Air-cooled Turbine Blades PDF eBook |
Author | Frederick C. Yeh |
Publisher | |
Pages | 40 |
Release | 1984 |
Genre | Gas-turbines |
ISBN |
Measurements of Heat Transfer, Flow, and Pressures in a Simulated Turbine Blade Internal Cooling Passage
Title | Measurements of Heat Transfer, Flow, and Pressures in a Simulated Turbine Blade Internal Cooling Passage PDF eBook |
Author | Louis M. Russell |
Publisher | |
Pages | 30 |
Release | 1997 |
Genre | Flow visualization |
ISBN |
An experimental study was made to obtain quantitative information on heat transfer, flow, and pressure distribution in a branched duct test section that had several significant features of an internal cooling passage of a turbine blade. The objective of this study was to generate a set of experimental data that could be used for validation of computer codes that would be used to model internal cooling. Surface heat transfer coefficients and entrance flow conditions were measured at nominal entrance Reynolds numbers of 45 000, 335 000, and 726 000. Heat transfer data were obtained by using a steady-state technique in which an Inconel heater sheet is attached to the surface and coated with liquid crystals. Visual and quantitative flow-field data from particle image velocimetry measurements for a plane at midchannel height for a Reynolds number of 45 000 were also obtained. The flow was seeded with polystyrene particles and illuminated by a laser light sheet. Pressure distribution measurements were made both on the surface with discrete holes and in the flow field with a total pressure probe. The flow-field measurements yielded flow-field velocities at selected locations. A relatively new method, pressure sensitive paint, was also used to measure surface pressure distribution. The pressure paint data obtained at Reynolds numbers of 335 000 and 726 000 compared well with the more standard method of measuring pressures by using discrete holes.