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Aerodynamic Performance And Turbulence Measurements In A Turbine Vane Cascade
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721532131 Total Pages :30 pages Book Rating :4.5/5 (321 download)
Book Synopsis Aerodynamic Performance and Turbulence Measurements in a Turbine Vane Cascade by : National Aeronautics and Space Administration (NASA)
Download or read book Aerodynamic Performance and Turbulence Measurements in a Turbine Vane Cascade written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbine vane aerodynamics were measured in a three vane linear cascade. Surface pressures and blade row losses were obtained over a range of Reynolds and Mach number for three levels of turbulence. Comparisons are made with predictions using a quasi-3D Navier-Stokes analysis. Turbulence intensity measurement were made upstream and downstream of the vane. The purpose of the downstream measurements was to determine how the turbulence was affected by the strong contraction through 75 deg turning. Boyle, Robert J. and Lucci, Barbara L. and Senyitko, Richard G. Glenn Research Center NASA/TM-2002-211709, NAS 1.15:211709, E-13457, GT-2002-30434
Book Synopsis Aerodynamic Performance and Turbulence Measurements in a Turbine Vane Cascade by :
Download or read book Aerodynamic Performance and Turbulence Measurements in a Turbine Vane Cascade written by and published by . This book was released on 2002 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Performance and Turbulence Measurement in a Turbine Vane Cascade ... Nasa/tm--2002-211709 ... National Aeronautics and Space Admi by :
Download or read book Aerodynamic Performance and Turbulence Measurement in a Turbine Vane Cascade ... Nasa/tm--2002-211709 ... National Aeronautics and Space Admi written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Performance of a Ceramic-coated Core Turbine Vane Tested with Cold Air in a Two-dimensional Cascade by : Roy G. Stabe
Download or read book Aerodynamic Performance of a Ceramic-coated Core Turbine Vane Tested with Cold Air in a Two-dimensional Cascade written by Roy G. Stabe and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Performance of a Fully Film Cooled Core Turbine Vane Tested with Cold Air in a Two-dimensional Cascade by : Roy G. Stabe
Download or read book Aerodynamic Performance of a Fully Film Cooled Core Turbine Vane Tested with Cold Air in a Two-dimensional Cascade written by Roy G. Stabe and published by . This book was released on 1975 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamic performance of a fully film cooled core turbine vane was investigated experimentally in a two-dimensional cascade of 10 vanes. Three of the 10 vanes were cooled; the others were solid (uncooled) vanes. Cold air was used for both the primary and coolant flows. The cascade test covered a range of pressure ratios corresponding to ideal exit critical velocity ratios of 0.6 to 0.95 and a range of coolant flow rates to 7.5 percent of the primary flow. The coolant flow was varied by changing the coolant supply pressure. The principal measurements were cross-channel surveys of exit total pressure, static pressure, and flow angle. The results presented include exit survey data and overall performance in terms of loss, flow angle, and weight flow for the range of exit velocity ratios and coolant flows investigated. The performance of the cooled vane is compared with the performance of an uncooled vane of the same profile and also with the performance obtained with a single cooled vane in the 10-vane cascade.
Book Synopsis Cold-air Annular-cascade Investigation of Aerodynamic Performance of Cooled Turbine Vanes: Trailing-edge ejection, film cooling, and transpiration cooling by : Goldman, Louis J.
Download or read book Cold-air Annular-cascade Investigation of Aerodynamic Performance of Cooled Turbine Vanes: Trailing-edge ejection, film cooling, and transpiration cooling written by Goldman, Louis J. and published by . This book was released on 1975 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization of a Low Heat Load Turbine Inlet Vane by : Jamie J. Johnson
Download or read book Optimization of a Low Heat Load Turbine Inlet Vane written by Jamie J. Johnson and published by . This book was released on 2006 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often there is a distinction between the design of turbomachinery airfoils for aerodynamic performance and durability. However, future aero-engine systems require ever increasing levels of turbine inlet temperature causing the durability and reliability of components to be an ever more important design concern. As a result, the need to incorporate heat transfer predictions into traditional aerodynamic design and optimization systems presents itself. Here, an effort to design an airfoil with both acceptable aerodynamics and minimized heat load is reported. First, a Reynolds-Averaged Navier-Stokes (RANS) flow solver was validated over different flow regimes as well as varying boundary conditions against extensive data available in literature. Next, a nominal turbine inlet vane was tested experimentally for unsteady heat load measurements in a linear cascade. The tests were performed in a reflected shock tunnel to validate the flow solver further at the current experimental conditions, and special attention was paid to leading edge and suction side heat-flux characteristics. The nominal airfoil geometry was then redesigned for minimum heat load by means of both design practice and two types of optimization algorithms. Finally, the new airfoil was tested experimentally and unsteady heat load trends were compared to design levels as well as the nominal vane counterpart. Results indicate an appreciable reduction in heat load relative to the original vane. Thus, it is a credible proposition to design turbine airfoils for aero-performance and durability concurrently.
Book Synopsis Cold-air Annular-cascade Investigation of Aerodynamic Performance of Core-engine-cooled Turbine Vanes by : Louis J. Goldman
Download or read book Cold-air Annular-cascade Investigation of Aerodynamic Performance of Core-engine-cooled Turbine Vanes written by Louis J. Goldman and published by . This book was released on 1976 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aero-thermal Performance of a Two Dimensional Highly Loaded Transonic Turbine Nozzle Guide Vane by : Tony Arts
Download or read book Aero-thermal Performance of a Two Dimensional Highly Loaded Transonic Turbine Nozzle Guide Vane written by Tony Arts and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contribution deals with an experimental aero-thermal investigation around a highly loaded transonic turbine nozzle guide vane mounted in a linear cascade arrangement. The measurements were performed in the von Karman Institute short duration Isentropic Light Piston Compression Tube facility allowing a correct simulation of Mach and Reynolds numbers as well as of the gas to wall temperature ratio compared to the values currently observed in modern aero engines. The experimental program consisted of flow periodicity checks by means of wall static pressure measurements and Schlieren flow visualizations, blade velocity distribution measurements by means of static pressure tappings, blade convective heat transfer measurements by means of platinum thin films, downstream loss coefficient and exit flow angle determinations by using a new fast traversing mechanism, and free-stream turbulence intensity and spectrum measurements. These different measurements were performed for several combinations of the free-stream flow parameters looking at the relative effects on the aerodynamic blade performance and blade convective heat transfer of Mach number, Reynolds number, and free-stream turbulence intensity.
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 456 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 Proceedings of the ASME Turbo Expo ... by :
Download or read book Proceedings of the ASME Turbo Expo ... written by and published by . This book was released on 2005 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA Technical Paper by : United States. National Aeronautics and Space Administration
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the ASME Heat Transfer Division by :
Download or read book Proceedings of the ASME Heat Transfer Division written by and published by . This book was released on 2005 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Investigation of Four-vane Cascade Designed for Turbine Cooling Studies by :
Download or read book Aerodynamic Investigation of Four-vane Cascade Designed for Turbine Cooling Studies written by and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimating Unsteady Aerodynamic Forces on a Cascade in a Three-dimensional Turbulence Field by :
Download or read book Estimating Unsteady Aerodynamic Forces on a Cascade in a Three-dimensional Turbulence Field written by and published by . This book was released on 1985 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
