Investigation of the Unsteady Rotor Boundary Layer Transition in a Transonic High Pressure Turbine Stage PDF Download
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Author: Maik Tiedemann
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
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Author: Maik Tiedemann
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
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Book Description
Author: Maik Tiedemann
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Maik Tiedemann
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 452
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Author: Chetan S. Mistry
Publisher: Springer Nature
ISBN: 9811550395
Category : Technology & Engineering
Languages : en
Pages : 534
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Book Description
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.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721008315
Category :
Languages : en
Pages : 28
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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
Author: Von Karman Institute for Fluid Dynamics
Publisher:
ISBN:
Category : Turbines
Languages : en
Pages : 12
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Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 438
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Author: Andreas Dillmann
Publisher: Springer
ISBN: 3319645196
Category : Technology & Engineering
Languages : en
Pages : 735
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Book Description
This book gathers contributions to the 20th biannual symposium of the German Aerospace Aerodynamics Association (STAB) and the German Society for Aeronautics and Astronautics (DGLR). The individual chapters reflect ongoing research conducted by the STAB members in the field of numerical and experimental fluid mechanics and aerodynamics, mainly for (but not limited to) aerospace applications, and cover both nationally and EC-funded projects. Special emphasis is given to collaborative research projects conducted by German scientists and engineers from universities, research-establishments and industries. By addressing a number of cutting-edge applications, together with the relevant physical and mathematics fundamentals, the book provides readers with a comprehensive overview of the current research work in the field. Though the book’s primary emphasis is on the aerospace context, it also addresses further important applications, e.g. in ground transportation and energy.
Author: Daniel J. Dorney
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
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