The Aerodynamic and Heat Transfer Performance of a Transonic Turbine Stage PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Aerodynamic and Heat Transfer Performance of a Transonic Turbine Stage PDF full book. Access full book title The Aerodynamic and Heat Transfer Performance of a Transonic Turbine Stage by R. J. G. Norton. Download full books in PDF and EPUB format.
Author: R. J. G. Norton
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages :
Get Book Here
Book Description
Author: R. J. G. Norton
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages :
Get Book Here
Book Description
Author: D. A. Ashworth
Publisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Matthew Lee Krumanaker
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
Get Book Here
Book Description
Author: Vikram Shyam
Publisher: BiblioGov
ISBN: 9781289035730
Category :
Languages : en
Pages : 42
Get Book Here
Book Description
Unsteady 3-D RANS simulations have been performed on a highly loaded transonic turbine stage and results are compared to steady calculations as well as to experiment. A low Reynolds number k-epsilon turbulence model is employed to provide closure for the RANS system. A phase-lag boundary condition is used in the tangential direction. This allows the unsteady simulation to be performed by using only one blade from each of the two rows. The objective of this work is to study the effect of unsteadiness on rotor heat transfer and to glean any insight into unsteady flow physics. The role of the stator wake passing on the pressure distribution at the leading edge is also studied. The simulated heat transfer and pressure results agreed favorably with experiment. The time-averaged heat transfer predicted by the unsteady simulation is higher than the heat transfer predicted by the steady simulation everywhere except at the leading edge. The shock structure formed due to stator-rotor interaction was analyzed. Heat transfer and pressure at the hub and casing were also studied. Thermal segregation was observed that leads to the heat transfer patterns predicted by steady and unsteady simulations to be different.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
Get Book Here
Book Description
Author: F. Didier
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Get Book Here
Book Description
Author: Zhengping Zou
Publisher: Springer
ISBN: 9811057508
Category : Technology & Engineering
Languages : en
Pages : 572
Get Book Here
Book Description
This book is a monograph on aerodynamics of aero-engine gas turbines focusing on the new progresses on flow mechanism and design methods in the recent 20 years. Starting with basic principles in aerodynamics and thermodynamics, this book systematically expounds the recent research on mechanisms of flows in axial gas turbines, including high pressure and low pressure turbines, inter-turbine ducts and turbine rear frame ducts, and introduces the classical and innovative numerical evaluation methods in different dimensions. This book also summarizes the latest research achievements in the field of gas turbine aerodynamic design and flow control, and the multidisciplinary conjugate problems involved with gas turbines. This book should be helpful for scientific and technical staffs, college teachers, graduate students, and senior college students, who are involved in research and design of gas turbines.
Author: V. Michelassi
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Harold Olusegun Demuren
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 478
Get Book Here
Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781724085658
Category :
Languages : en
Pages : 28
Get Book Here
Book Description
A recently developed neural net-based aerodynamic design procedure is used in the redesign of a transonic turbine stage to improve its unsteady aerodynamic performance. The redesign procedure used incorporates the advantages of both traditional response surface methodology and neural networks by employing a strategy called parameter-based partitioning of the design space. Starting from the reference design, a sequence of response surfaces based on both neural networks and polynomial fits are constructed to traverse the design space in search of an optimal solution that exhibits improved unsteady performance. The procedure combines the power of neural networks and the economy of low-order polynomials (in terms of number of simulations required and network training requirements). A time-accurate, two-dimensional, Navier-Stokes solver is used to evaluate the various intermediate designs and provide inputs to the optimization procedure. The procedure yielded a modified design that improves the aerodynamic performance through small changes to the reference design geometry. These results demonstrate the capabilities of the neural net-based design procedure, and also show the advantages of including high-fidelity unsteady simulations that capture the relevant flow physics in the design optimization process. Rai, Man Mohan and Madavan, Nateri K. and Huber, Frank W. Ames Research Center NASA/TM-1999-208791, NAS 1.15:208791, A-99V0041...
