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Book Investigation of the Unsteady Rotor Aerodynamics in a Transonic Turbine Stage

Download or read book Investigation of the Unsteady Rotor Aerodynamics in a Transonic Turbine Stage written by Von Karman Institute for Fluid Dynamics and published by . This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Investigation of Unsteady Flow Through a Transonic Turbine Stage

Download or read book Investigation of Unsteady Flow Through a Transonic Turbine Stage written by K. V. Rao and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Three Dimensional Unsteady Simulation of Aerodynamics and Heat Transfer in a Modern High Pressure Turbine Stage

Download or read book Three Dimensional Unsteady Simulation of Aerodynamics and Heat Transfer in a Modern High Pressure Turbine Stage written by Vikram Shyam and published by BiblioGov. This book was released on 2013-06 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Unsteady Aerodynamics and Heat Transfer in a Transonic Turbine Stage

Download or read book Unsteady Aerodynamics and Heat Transfer in a Transonic Turbine Stage written by D. A. Ashworth and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Unsteady Aerodynamic and Heat Transfer Studies in a Highly Loaded Transonic Turbine Rotor Cascade with Simulated Shock Wake Passing

Download or read book Unsteady Aerodynamic and Heat Transfer Studies in a Highly Loaded Transonic Turbine Rotor Cascade with Simulated Shock Wake Passing written by and published by . This book was released on 1996 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the research effort is to integrate fluid and heat transfer studies in a heated transonic turbine cascade in order to develop a better understanding of the complex flow physics involved in the coupling of the fluid flow and heat transfer phenomena in an unsteady flowfield. To that end detailed, time resolved aerodynamic and heat transfer measurements are taken in the experiments. Unsteady passing shock is generated in a shock tube and introduced into the test section of the cascade to simulate the shock wave passage similar to an actual turbine environment.

Book Unsteady Rotor Heat Transfer in a Transonic Turbine Stage

Download or read book Unsteady Rotor Heat Transfer in a Transonic Turbine Stage written by F. Didier and published by . This book was released on 2002 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Unsteady Aerodynamics of High Work Turbines

Download or read book Unsteady Aerodynamics of High Work Turbines written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: One method aircraft engine manufactures use to minimize engine cost and weight is to reduce the number of parts. A significant reduction includes reducing the turbine blade count or combining two moderately loaded turbines into one high-work turbine. The risk of High Cycle Fatigue in these configurations is increased by the additional aerodynamic forcing generated by the high blade loading and the nozzle trailing edge shocks. A lot of research has been done into the efficiency implications of supersonic shocks in these configurations. However what is less well understood is the resulting unsteady rotor forces. These unsteady aerodynamics aspects are the focus of this research. The research investigates where manufacturers might concentrate their resources to reduce Direct Operating Costs (DOC). It compares the relative financial implications of disruption events to the cost of reducing DOC by further efficiency gains. The technical aspects of the research use computational aerodynamic modelling of a high work turbine to explore the unsteady aerodynamics and the resulting rotor forces. Investigation of parametric models into the effect of reaction, axial spacing, pressure ratio, the nozzle wake profile and the significance of the rotor boundary layer in dissipating the high gradient shocks is also investigated. Data from an experimental test program was used to characterise sub- and super-critical shock boundary layer interactions to determine if they are a significant forcing function. The primary conclusions from this research include the relative merits of targeting resources into reducing disruption events rather than the relatively small financial gains which might be gained through further efficiency improvement by researching advanced technologies. The computational method is validated against an experimental dataset from a high-speed turbine stage rig. Overall, good agreement is found between the measurements and the predictions for both the detailed unsteady.

Book Design and Experimental Investigation of a Single stage Turbine with a Rotor Entering Relative Mach Number of 2

Download or read book Design and Experimental Investigation of a Single stage Turbine with a Rotor Entering Relative Mach Number of 2 written by Thomas P. Moffitt and published by . This book was released on 1958 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Paper

Download or read book Paper written by and published by . This book was released on 2001 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Investigation of the 3D Unsteady Rotor Pressure Field in an HP Turbine Stage

Download or read book Investigation of the 3D Unsteady Rotor Pressure Field in an HP Turbine Stage written by E. Valentini and published by . This book was released on 2002 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fluid Mechanics and Fluid Power Volume 1

Download or read book Fluid Mechanics and Fluid Power Volume 1 written by Krishna Mohan Singh and published by Springer Nature. This book was released on 2024-01-06 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select peer-reviewed proceedings of the 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP 2022). This book brings together scientific ideas and engineering solutions put forth by researchers and practitioners from academia and industry in the important and ubiquitous field of fluid mechanics. The contents of this book focus on fundamental issues and perspective in fluid mechanics, measurement techniques in fluid mechanics, computational fluid and gas dynamics, instability, transition and turbulence, fluid-structure interaction, multiphase flows, microfluidics, bio-inspired fluid mechanics, aerodynamics, turbomachinery, propulsion and power and other miscellaneous topics in the broad domain of fluid mechanics. This book is a useful reference to researchers and professionals working in the broad field of mechanics.

Book Axial Turbine Aerodynamics for Aero engines

Download or read book Axial Turbine Aerodynamics for Aero engines written by Zhengping Zou and published by Springer. This book was released on 2018-01-11 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.