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Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine

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Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine

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Author : Daniel J. Dorney
language : en
Publisher:
Release Date : 1999

Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine written by Daniel J. Dorney and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-11

Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-11 with categories.

Experimental data from jet-engine tests have indicated that unsteady blade row interactions and separation can have a significant impact on the efficiency of low-pressure turbine stages. Measured turbine efficiencies at takeoff can be as much as two points higher than those at cruise conditions. Several recent studies have revealed that Reynolds number effects may contribute to the lower efficiencies at cruise conditions. In the current study numerical simulations have been performed to study the boundary layer development in a two-stage low-pressure turbine, and to evaluate the transition models available for low Reynolds number flows in turbomachinery. The results of the simulations have been compared with experimental data, including airfoil loadings and integral boundary layer quantities. The predicted unsteady results display similar trends to the experimental data, but significantly overestimate the amplitude of the unsteadiness. The time-averaged results show close agreement with the experimental data.Dorney, Daniel J. and Ashpis, David E. and Halstead, David E. and Wisler, David C.Glenn Research CenterJET ENGINES; TWO STAGE TURBINES; COMPUTERIZED SIMULATION; BALDWIN-LOMAX TURBULENCE MODEL; BOUNDARY LAYER TRANSITION; TRANSITION FLOW; FLOW VISUALIZATION; BOUNDARY LAYER SEPARATION; SEPARATED FLOW; ROTOR BLADES (TURBOMACHINERY); TAKEOFF; CRUISING FLIGHT; COMPUTATIONAL GRIDS; NOZZLE FLOW; SKIN FRICTION; TURBINE BLADES; REYNOLDS NUMBER; FLOW CHARACTERISTICS; FLOW DISTRIBUTION

Asme Technical Papers

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Author :
language : en
Publisher:
Release Date : 2001

Asme Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Mechanical engineering categories.

Handbook Of Turbomachinery

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Author : Earl Logan, Jr.
language : en
Publisher: CRC Press
Release Date : 2003-05-01

Handbook Of Turbomachinery written by Earl Logan, Jr. and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-05-01 with Technology & Engineering categories.

Building on the success of its predecessor, Handbook of Turbomachinery, Second Edition presents new material on advances in fluid mechanics of turbomachinery, high-speed, rotating, and transient experiments, cooling challenges for constantly increasing gas temperatures, advanced experimental heat transfer and cooling effectiveness techniques, and propagation of wake and pressure disturbances. Completely revised and updated, it offers updated chapters on compressor design, rotor dynamics, and hydraulic turbines and features six new chapters on topics such as aerodynamic instability, flutter prediction, blade modeling in steam turbines, multidisciplinary design optimization.

Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine Nasa Tm 1999 208913 Mar 1 1999

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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1999*

Study Of Boundary Layer Development In A Two Stage Low Pressure Turbine Nasa Tm 1999 208913 Mar 1 1999 written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999* with categories.