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A Heat Transfer Analysis For Rough Turbine Airfoils
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Book Synopsis A Heat Transfer Analysis for Rough Turbine Airfoils by : Lit S. Han
Download or read book A Heat Transfer Analysis for Rough Turbine Airfoils written by Lit S. Han and published by . This book was released on 1990 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research program, a methodology has been developed to calculate the increased heat transfer to turbine airfoils with surface roughness. The new model is adaptable to methods of finite-difference calculation, as opposed to correlation relations currently in use. The model utilizes an amplification factor for the thermal mixing length which is dependent on the local roughness height and surface shear stress. Keywords: Turbine blades, Vanes, Surface roughness, Turbulent boundary layer, Heat transfer, Augmentation. (JHD).
Book Synopsis Two-dimensional Navier-Stokes Heat Transfer Analysis for Rough Turbine Blades by :
Download or read book Two-dimensional Navier-Stokes Heat Transfer Analysis for Rough Turbine Blades written by and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A quasi-three-dimensional thin-layer Navier-Stokes analysis was used to predict heat transfer to rough surfaces. Comparisons are made between predicted and experimental heat transfer for turbine blades and flat plates of known roughness. The effect of surface Toughness on heat transfer was modeled using a mixing length approach. The effect of near-wall grid spacing and convergence criteria on the accuracy of the heat transfer predictions are examined. An eddy viscosity mixing length model having an inner and outer layer was used. A discussion of the appropriate model for the crossover between the inner and outer layers is included. The analytic results are compared with experimental data for both flat plates and turbine blade geometries. Comparisons between predicted and experimental heat transfer showed that a modeling roughness effects using a modified mixing length approach results in good predictions of the trends in heat transfer due to roughness. Turbine, Heat transfer, Rough surface.
Book Synopsis Two-dimensional Navier-Stokes Heat Transfer Analysis for Rough Turbine Blades System by : Robert J. Boyle
Download or read book Two-dimensional Navier-Stokes Heat Transfer Analysis for Rough Turbine Blades System written by Robert J. Boyle and published by . This book was released on 1991 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic/heat Transfer Analysis of Discrete Site Film-cooled Turbine Airfoils by : Edward J. Hall
Download or read book Aerodynamic/heat Transfer Analysis of Discrete Site Film-cooled Turbine Airfoils written by Edward J. Hall and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASME Technical Papers written by and published by . This book was released on 2001 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Comparison of Predicted and Measured Turbine Vane Rough Surface Heat Transfer by :
Download or read book Comparison of Predicted and Measured Turbine Vane Rough Surface Heat Transfer written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer Measurements and Predictions on a Power Generation Gas Turbine Blade by :
Download or read book Heat Transfer Measurements and Predictions on a Power Generation Gas Turbine Blade written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed heat transfer measurements and predictions are given for a power generation turbine rotor with 129 deg of nominal turning and an axial chord of 137 mm. Data were obtained for a set of four exit Reynolds numbers comprised of the design point of 628,000, -20%, +20%, and +40%. Three ideal exit pressure ratios were examined including the design point of 1.378, -10%, and +10%. Inlet incidence angles of 0 deg and +/-2 deg were also examined. Measurements were made in a linear cascade with highly three-dimensional blade passage flows that resulted from the high flow turning and thick inlet boundary layers. Inlet turbulence was generated with a blown square bar grid. The purpose of the work is the extension of three-dimensional predictive modeling capability for airfoil external heat transfer to engine specific conditions including blade shape, Reynolds numbers, and Mach numbers. Data were obtained by a steady-state technique using a thin-foil heater wrapped around a low thermal conductivity blade. Surface temperatures were measured using calibrated liquid crystals. The results show the effects of strong secondary vortical flows, laminar-to-turbulent transition, and also show good detail in the stagnation region.
Book Synopsis Flow and Heat Transfer Experiments in the Turbine Airfoil/endwall Region by : Jin Taek Chung
Download or read book Flow and Heat Transfer Experiments in the Turbine Airfoil/endwall Region written by Jin Taek Chung and published by . This book was released on 1992 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 2001 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat transfer calculations on turbine airfoils by : Kevin Ditaniel Johnson
Download or read book Heat transfer calculations on turbine airfoils written by Kevin Ditaniel Johnson and published by . This book was released on 1987 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predictions of the Effect of Roughness on Heat Transfer from Turbine Airfoils by : Anil K. Tolpadi
Download or read book Predictions of the Effect of Roughness on Heat Transfer from Turbine Airfoils written by Anil K. Tolpadi and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Stockholm, Sweden, June 2 - June 5, 1998.
Book Synopsis Effects of Surface Roughness on Heat Transfer and Aerodynamic Performance of Turbine Airfoils by : N. Abuaf
Download or read book Effects of Surface Roughness on Heat Transfer and Aerodynamic Performance of Turbine Airfoils written by N. Abuaf and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Orlando, FL, Jun 2-Jun 5, 1997.
Book Synopsis A General Method for Unsteady Heat Transfer on Turbine Blades by : Tuncer Cebeci
Download or read book A General Method for Unsteady Heat Transfer on Turbine Blades written by Tuncer Cebeci and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiation Heat Transfer Characteristics of Turbine Vane Airfoils in a Water-cooled Cascade by :
Download or read book Radiation Heat Transfer Characteristics of Turbine Vane Airfoils in a Water-cooled Cascade written by and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer Measurements on a Turbine Airfoil at Various Reynolds Numbers and Turbulence Intensities Including Effects of Surface Roughness by : A. Hoffs
Download or read book Heat Transfer Measurements on a Turbine Airfoil at Various Reynolds Numbers and Turbulence Intensities Including Effects of Surface Roughness written by A. Hoffs and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine and Aeroengine Congress &Exhibition Birmingham, UK - June 10-13, 1996.
Download or read book Journal of Turbomachinery written by and published by . This book was released on 1994 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
