LDV Measurements of Unsteady Flow in a Turbine Rotor
Author | : Takayuki Matsunuma |
Publisher | : |
Total Pages | : |
Release | : 2002 |
Genre | : |
ISBN | : |
Download LDV Measurements of Unsteady Flow in a Turbine Rotor Book in PDF, Epub and Kindle
Download Ldv Measurements Of Unsteady Flow In A Turbine Rotor full books in PDF, epub, and Kindle. Read online free Ldv Measurements Of Unsteady Flow In A Turbine Rotor ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : Takayuki Matsunuma |
Publisher | : |
Total Pages | : |
Release | : 2002 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 165 |
Release | : 1992 |
Genre | : |
ISBN | : |
Detailed measurements of an unsteady flow field within the inlet guide vanes (IGV) and the rotor of a radial inflow turbine were performed using a three component Laser Doppler Velocimeter (LDV) system together with a rotary encoder. The mean velocity, the flow angle and the turbulence contours for IGV passages are presented at four blade-to-blade planes for different rotor positions to give three dimensional, unsteady behavior of the IGV flow field. These results are compared with the measurements obtained in the same passage in the absence of the rotor. The flow field of the IGV passage was found to be affected by the presence of the rotor. The ratio of the tangential normal stresses to the radial normal stresses at the exit of the IGV was found to be more than doubled when compared to the case without the rotor. The rotor flow field measurements are presented as relative mean velocity and turbulence stress contours at various cross section planes throughout the rotor. The cross flow and turbulence stress levels were found to be influenced by the incidence angle. Transportation of the high turbulence fluid by the cross flow was observed downstream in the rotor blade passages. Radial Turbine Aerodynamics, LDV unsteady Flow Measurements.
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 386 |
Release | : 2018-07-23 |
Genre | : |
ISBN | : 9781723515354 |
Measurements were made in a large scale single stage turbine facility. Within the nozzle passage measurements were made using a five hole probe, a two-component Laser Doppler Velocimeter (LDV), and a single sensor hot wire probe. These measurements showed weak secondary flows at midchord, and two secondary flow loss cores at the nozzle exit. The casing vortex loss core was the larger of the two. At the exit radial inward flow was found over the entire passage, and was more pronounced in the wake. Nozzle wake decay was found to be more rapid than for an isolated vane row due to the rotor's presence. The midspan rotor flow field was measured using a two-component LDV. Measurements were made from upstream of the rotor to a chord behind the rotor. The distortion of the nozzle wake as it passed through the rotor blade row was determined. The unsteadiness in the rotor flow field was determined. The decay of the rotor wake was also characterized. Zaccaria, M. and Lakshminarayana, B. Glenn Research Center NASA-CR-4778, NAS 1.26:4778, E-10771 NAG3-555; RTOP 523-26-33...
Author | : M. Zaccaria |
Publisher | : |
Total Pages | : 394 |
Release | : 1997 |
Genre | : Turbines |
ISBN | : |
Author | : H.M. Atassi |
Publisher | : Springer Science & Business Media |
Total Pages | : 876 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1461393418 |
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.
Author | : J. S. Addison |
Publisher | : |
Total Pages | : 0 |
Release | : 1989 |
Genre | : Axial flow |
ISBN | : |
Previously published measurements in a low-speed, single-stage, axial-flow turbine have been reanalyzed in the light of more recent understanding. The measurements include time-resolved hot-wire traverses and surface hot film gage measurements at the midspan of the rotor suction surface with three different rotor-stator spacings. Part 1 investigates the suction surface boundary layer transition process, using surface-distance time plots and boundary layer cross sections to demonstrate the unsteady and two-dimensional nature of the process. Part 2 of the paper will describe the results of supporting experiments carried out in a linear cascade together with a simple transition model, which explains the features seen in the turbine.
Author | : Ke-fa Cen |
Publisher | : Springer Science & Business Media |
Total Pages | : 1432 |
Release | : 2009-03-27 |
Genre | : Technology & Engineering |
ISBN | : 3540766944 |
This book is the proceedings of the International Conference on Power Engineering-2007. The fields of this book include power engineering and relevant environmental issues. The recent technological advances in power engineering and related areas are introduced. This book is valuable for researchers, engineers and students majoring in power engineering.
Author | : Cameron Tropea |
Publisher | : Springer Science & Business Media |
Total Pages | : 1570 |
Release | : 2007-10-09 |
Genre | : Science |
ISBN | : 3540251413 |
Accompanying DVD-ROM contains ... "all chapters of the Springer Handbook."--Page 3 of cover.
Author | : M. Pasin |
Publisher | : |
Total Pages | : |
Release | : 1992 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 704 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |