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Stepped Tip Gap Effects On A Transonic Axial Flow Compressor Rotor
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Book Synopsis Stepped Tip Gap Effects on a Transonic Axial-Flow Compressor Rotor by : Donald W. Thompson
Download or read book Stepped Tip Gap Effects on a Transonic Axial-Flow Compressor Rotor written by Donald W. Thompson and published by . This book was released on 1997-06-01 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of stepped tip gaps and clearance levels on the performance, flowfield, and stall characteristics of a transonic axial-flow compressor rotor were experimentally and numerically determined. A theory and mechanism for relocation of blockage in the rotor tip region was developed. A two-stage compressor with no inlet guide vanes was tested in the Wright Laboratories Compressor Research Facility located at Wright-Patterson Air Force Base, Ohio. The first-stage rotor was unswept and was tested for an optimum tip clearance with variations in stepped gaps machined into the casing near the aft tip region of the rotor. Nine casing geometries were investigated consisting of three step profiles at each of three clearance levels. For small and intermediate clearances, stepped tip gaps were found to improve pressure ratio, efficiency, and flow range for most operating conditions. At 100% design rotor speed, stepped tip gaps produced a doubling of mass flow range with as much as a 2.0% increase in mass flow and a 1.5% improvement in efficiency The flowfield characteristics associated with performance improvements were experimentally and numerically analyzed. Stepped tip gaps were found to have no significant effect on the stall characteristics of the rotor; the stability characteristics attributable to tip geometry were determined by the clearance over the forward portion of the rotor blade. This study provides guidelines for engineers to improve compressor performance for an existing design by applying an optimum casing profile.
Book Synopsis Stepped Tip Gap Effects on a Transonic Axial-Flow Compressor Rotor by :
Download or read book Stepped Tip Gap Effects on a Transonic Axial-Flow Compressor Rotor written by and published by . This book was released on 1997 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of stepped tip gaps and clearance levels on the performance, flowfield, and stall characteristics of a transonic axial-flow compressor rotor were experimentally and numerically determined. A theory and mechanism for relocation of blockage in the rotor tip region was developed. A two-stage compressor with no inlet guide vanes was tested in the Wright Laboratories Compressor Research Facility located at Wright-Patterson Air Force Base, Ohio. The first-stage rotor was unswept and was tested for an optimum tip clearance with variations in stepped gaps machined into the casing near the aft tip region of the rotor. Nine casing geometries were investigated consisting of three step profiles at each of three clearance levels. For small and intermediate clearances, stepped tip gaps were found to improve pressure ratio, efficiency, and flow range for most operating conditions. At 100% design rotor speed, stepped tip gaps produced a doubling of mass flow range with as much as a 2.0% increase in mass flow and a 1.5% improvement in efficiency The flowfield characteristics associated with performance improvements were experimentally and numerically analyzed. Stepped tip gaps were found to have no significant effect on the stall characteristics of the rotor; the stability characteristics attributable to tip geometry were determined by the clearance over the forward portion of the rotor blade. This study provides guidelines for engineers to improve compressor performance for an existing design by applying an optimum casing profile.
Book Synopsis Experimental Investigation of Stepped Tip Gap Effects on the Performance of a Transonic Axial-flow Compressor Rotor by : Donald W. Thompson
Download or read book Experimental Investigation of Stepped Tip Gap Effects on the Performance of a Transonic Axial-flow Compressor Rotor written by Donald W. Thompson 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 Calculation of Tip Clearance Effects in a Transonic Compressor Rotor by : Rodrick V. Chima
Download or read book Calculation of Tip Clearance Effects in a Transonic Compressor Rotor written by Rodrick V. Chima and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow through the tip clearance region of a transonic compressor rotor (NASA rotor 37) was computed and compared to aerodynamic probe and laser anemometer data. Tip clearance effects were modeled both by gridding the clearance gap and by using a simple periodicity model across the ungridded gap. The simple model was run with both the full gap height, and with half the gap height to simulate a vena-contracta effect. Comparisons between computed and measured performance maps and downstream profiles were used to validate the models and to assess the effects of gap height on the simple clearance model. Recommendations were made concerning the use of the simple clearance model. Detailed comparisons were made between the gridded clearance gap solution and the laser anemometer data near the tip at two operating points. The computer results agreed fairly well with the data but overpredicted the extent of the casing separation and underpredicted the wake decay rate. The computations were then used to describe the interaction of the tip vortex, the passage shock, and the casing boundary layer.
Book Synopsis Experimental and computational investigation of stepped tip gas effects on the flowfield of a transonic axial-flow compressor rotor, ASME 98-GT-90 by : Donald W. Thompson
Download or read book Experimental and computational investigation of stepped tip gas effects on the flowfield of a transonic axial-flow compressor rotor, ASME 98-GT-90 written by Donald W. Thompson 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 Proceedings of the National Aerospace Propulsion Conference by : Chetan S. Mistry
Download or read book Proceedings of the National Aerospace Propulsion Conference written by Chetan S. Mistry and published by Springer Nature. This book was released on 2020-07-31 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents selected papers presented during the National Aerospace Propulsion Conference (NAPC) held at Indian Institute of Technology Kharagpur. It brings together contributions from the entire propulsion community, spanning air-breathing and non-air-breathing propulsion. The papers cover aerospace propulsion-related topics, and discuss relevant research advances made in this field. It will be of interest to researchers in industry and academia working on gas turbine, rocket, and jet engines.
Download or read book ASME Technical Papers written by and published by . This book was released on 2001 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recommendations for Achieving Accurate Numerical Simulation of Tip Clearance Flows in Transonic Compressor Rotors by :
Download or read book Recommendations for Achieving Accurate Numerical Simulation of Tip Clearance Flows in Transonic Compressor Rotors written by and published by . This book was released on 2000 with total page 28 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:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Axial Compressor Aerodynamics by : R. Dénos
Download or read book Advances in Axial Compressor Aerodynamics written by R. Dénos and published by . This book was released on 2006 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of a Transonic Axial-flow-compressor Rotor with Double-circular-arc Airfoil Blade Sections by : George W. Lewis (Jr.)
Download or read book Experimental Investigation of a Transonic Axial-flow-compressor Rotor with Double-circular-arc Airfoil Blade Sections written by George W. Lewis (Jr.) and published by . This book was released on 1954 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :IMechE (Institution of Mechanical Engineers) Publisher :John Wiley & Sons ISBN 13 :9781860584756 Total Pages :390 pages Book Rating :4.5/5 (847 download)
Book Synopsis International Conference on Fans by : IMechE (Institution of Mechanical Engineers)
Download or read book International Conference on Fans written by IMechE (Institution of Mechanical Engineers) and published by John Wiley & Sons. This book was released on 2004-12-27 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fans are probably the most commonly used machines – from computers to power station boilers, they come in all shapes and sizes. In today’s ever more demanding marketplace companies are evolving fans that are more efficient, quieter, and cheaper to run. These IMechE event transactions bring together international authors presenting their latest research and development. With significant developments, such as the impact of CFD on fan design and the increasingly common application of variable speed, International Conference on Fans provides a unique opportunity for both manufacturers and users of fans to share their experience and findings. Topics include: Noise and vibration Small fans and motors Computational fluid dynamics Cooling applications Operation and maintenance Impact of technology, legislation, and testing Fan design International Conference on Fans is vital reading for fan users, installers, consultants, and manufacturers and everyone concerned with power generation, industrial processes, commercial ventilation, air conditioning, tunnel and mine ventilation.
Book Synopsis Tip Clearance Effects in Axial Turbomachines by : C. Sieverding
Download or read book Tip Clearance Effects in Axial Turbomachines written by C. Sieverding and published by . This book was released on 1985 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Blade Tip Clearance Effects on an Axial Flow Compressor Rotor by : M. J. P. Schmidt
Download or read book Blade Tip Clearance Effects on an Axial Flow Compressor Rotor written by M. J. P. Schmidt and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tip Clearance Flow-shock Interaction in an Advanced, Transonic, Axial-flow Compressor Rotor by : Steven Lee Puterbaugh
Download or read book Tip Clearance Flow-shock Interaction in an Advanced, Transonic, Axial-flow Compressor Rotor written by Steven Lee Puterbaugh and published by . This book was released on 1994 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
