Flowfield Modeling And Diagnostics
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Flowfield Modeling And Diagnostics
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Author : Ashwani K. Gupta
language : en
Publisher: Taylor & Francis
Release Date : 1985
Flowfield Modeling And Diagnostics written by Ashwani K. Gupta and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Crafts & Hobbies categories.
First published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes
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Author : S. O. Park
language : en
Publisher:
Release Date : 1983
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes written by S. O. Park and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Gas flow categories.
Finite-difference numerical computations are presented to predict the isothermal, turbulent, recirculating flowfields in a centerbody combustor configuration which involves confined dual coaxial jet mixing in the near-wake region of an axisymmetric bluff body. Calculations based upon the Reynolds-averaged Navier-Stokes equations and the k-epsilon turbulence model consider the influence of the annular and central flow rates on the nature of the flowfield downstream of the bluff body. The reported isothermal modeling calculations are performed with the 'Teaching Elliptic Axisymmetrical Characteristics Heuristically' (TEACH) Code. Numerical results show the influence of the annular and central jet flow rates on the distributions of the mean and rms velocity fields and centerline locations of stagnation points. The sensitivity of the predicted results to several aspects of the modeling is considered. The predicted results demonstrate the complexity of flowfield interactions in the near-wake region and refine the understanding of the centerbody combustor flowfields. The character of the recirculating flowfield emerging from the numerical predictions when the near-wake is dominated by the annular jet is in conformity with experimental observations.
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes
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Author : L. Krishnamurthy
language : en
Publisher:
Release Date : 1983
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes written by L. Krishnamurthy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Gas flow categories.
Finite-difference numerical computations are presented to predict the isothermal, turbulent, recirculating flowfields in a centerbody combustor configuration which involves confined dual coaxial jet mixing in the near-wake region of an axisymmetric bluff body. Calculations based upon the Reynolds-averaged Navier-Stokes equations and the k-epsilon turbulence model consider the influence of the annular and central flow rates on the nature of the flowfield downstream of the bluff body. The reported isothermal modeling calculations are performed with the 'Teaching Elliptic Axisymmetrical Characteristics Heuristically' (TEACH) Code. Numerical results show the influence of the annular and central jet flow rates on the distributions of the mean and rms velocity fields and centerline locations of stagnation points. The sensitivity of the predicted results to several aspects of the modeling is considered. The predicted results demonstrate the complexity of flowfield interactions in the near-wake region and refine the understanding of the centerbody combustor flowfields. The character of the recirculating flowfield emerging from the numerical predictions when the near-wake is dominated by the annular jet is in conformity with experimental observations.
Flow Field Diagnostics In The Compressor Research Facility One Tenth Scale Flow Model
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Author : Tsuyoshi Shinji (CAPT, JASDF.)
language : en
Publisher:
Release Date : 1975
Flow Field Diagnostics In The Compressor Research Facility One Tenth Scale Flow Model written by Tsuyoshi Shinji (CAPT, JASDF.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Compressors categories.
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes
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Author :
language : en
Publisher:
Release Date : 1983
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Flow Field Diagnostics In The Compressor Research Facility One Tenth Scale Flow Model
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Author : Tsuyoshi Shinji
language : en
Publisher:
Release Date : 1975
Flow Field Diagnostics In The Compressor Research Facility One Tenth Scale Flow Model written by Tsuyoshi Shinji and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
The Air Force Aero Propulsion Laboratory is developing a compressor research facility (CRF). The facility must provide a metered flow at a given pressure which is uniform in temperature and velocity at the compressor inlet. In this study the flow field of a one-tenth scale flow model of the CRF, constructed by a contractor for the Air Force Aero Propulsion Laboratory, was investigated. Velocity measurements made with a constant temperature anemometer using hot wire sensors provided the basis for establishing velocity profiles and turbulence intensity levels.
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes Part Ii
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Author : L. Krishnamurthy
language : en
Publisher:
Release Date : 1983
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes Part Ii written by L. Krishnamurthy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes
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Author : A. J. Lightman
language : en
Publisher:
Release Date : 1983
Laser Diagnostic Development And Measurement And Modeling Of Turbulent Flowfields Of Jets And Wakes written by A. J. Lightman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Anemometer categories.
A two-dimensional laser Doppler anemometer was designed to take measurements in a ducted coaxial flow system having a centerbody separating the jets. The measurements, made in isothermal flow, can be categorized as: central jet only (C02); annular jet only (air); and, combined central and annular jet flow. Radial profiles of the axial and radial/azimuthal velocity were obtained. The central jet only condition approximates a free jet since the central jet diameter is much smaller than the centerbody or duct diameter (1:29.3: 53.2). Measurements of the jet development (diameter, turbulence intensity, etc.) were compared with previous free jet studies. In a study of the isotropy of the turbulent fluctuations it was determined that fully developed turbulent flow begins further downstream than anticipated. Velocity profiles were combined with gas sampling measurements to ascertain jet entrainment. Results show a linear growth of the entrained mass starting at the entrance plane. Downstream (20 diameters) the rate of growth increases to match past studies in that region. The annular jet flow creates a recirculation vortex in the wake of the centerbody. The flowfield was mapped and the streamlines describing the flow were obtained throughout the recirculating flow and further downstream. The location and strength of the vortex center was determined. Velocity scanes were combined to obtain profiles of the average radial and azimuthal components that were directly measured. The interaction of the recirculating annular air jet and the central get was examined. Profiels of the velocity field were obtained for several central jet flow conditions. A normalization plot of the location of the central jet stagnation location agreed well with earlier measurements using a one-dimensional laser doppler anemometer and a different central jet nozzle.
Flow Field Diagnostics
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Author : U. Dallmann
language : en
Publisher:
Release Date : 1995
Flow Field Diagnostics written by U. Dallmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Modeling And Diagnostics Of Polymer Electrolyte Fuel Cells
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Author : Ugur Pasaogullari
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-07-23
Modeling And Diagnostics Of Polymer Electrolyte Fuel Cells written by Ugur Pasaogullari and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07-23 with Science categories.
This volume, presented by leading experts in the field, covers the latest advances in diagnostics and modeling of polymer electrolyte fuel cells, from understanding catalyst layer durability to start-up under freezing conditions.