Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps
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Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps
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Author : Douglas Eugene Abbott
language : en
Publisher:
Release Date : 1961
Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps written by Douglas Eugene Abbott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Boundary layer categories.
Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps
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Author : Stanford University. Thermosciences Division. Thermosciences Division
language : en
Publisher:
Release Date : 1961
Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps written by Stanford University. Thermosciences Division. Thermosciences Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Boundary layer categories.
A semi-empirical analysis is developed for the over-all flow pattern of subsonic turbulent flow over backward facing steps. Good agrement is found between theory and experiment for the prediction of two-dimensional reattachment length for small values of step height to throat width ratio; an asymptotic solution for large values of step height is also given and discussed. Mean velocity profiles calculated by the present analysis are shown; they require an empirical fit at one point. Good agreement with experiment is found in the region near the step face, but agreement is poor near the reattachment region. Experimental results are represented for flow patterns over backward facing steps covering a wide range of geometric variables. Velocity profile measurements are given for both single and double steps. The stall region is shown to consist of a complex pattern involving three distinct regions. The double step contains an asymmetry for large expansions, but approaches the single-step configuration with symmetric stall regions for small values of area ratio. No effect on flow pattern or reattachment length is found for a wide range of Reynolds numbers and turbulence intensities, provided the flow is fully turbulent before the step. (Author).
I Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps
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Author : Douglas Eugene Abbott
language : en
Publisher:
Release Date : 1961
I Theoretical And Experimental Investigation Of Flow Over Single And Double Backward Facing Steps written by Douglas Eugene Abbott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Hydrodynamics categories.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1961-10
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961-10 with Military art and science categories.
Nasa Technical Paper
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Author :
language : en
Publisher:
Release Date : 1985
Nasa Technical Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Astronautics categories.
U S Government Research Reports
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Author :
language : en
Publisher:
Release Date : 1961
U S Government Research Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Science categories.
A Critical Evaluation Of Various Turbulence Models As Applied To Internal Fluid Flows
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Author : M. Nallasamy
language : en
Publisher:
Release Date : 1985
A Critical Evaluation Of Various Turbulence Models As Applied To Internal Fluid Flows written by M. Nallasamy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Computational fluid dynamics categories.
Experimental Study Of Flow Reattachment In A Single Sided Sudden Expansion
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Author : R. V. Westphal
language : en
Publisher:
Release Date : 1984
Experimental Study Of Flow Reattachment In A Single Sided Sudden Expansion written by R. V. Westphal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Air flow categories.
Vortex Ventilation
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Author : Arslan Malikovich Ziganshin
language : en
Publisher: CRC Press
Release Date : 2025-08-04
Vortex Ventilation written by Arslan Malikovich Ziganshin and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-08-04 with Technology & Engineering categories.
Vortex Ventilation: Shaped Units of Energy-Saving Ventilation Systems presents innovative methods for optimizing ventilation systems through vortex zone and computational fluid dynamics analysis. The research explores separated flows in ventilation elements, offering insights for students and professionals. The work introduces computational fluid dynamics methods to map vortex zones in duct fittings, enabling energy-efficient designs. Strategic shaping along these zones reduces aerodynamic resistance, decreasing energy consumption and operating costs. This approach allows for smaller fan sizes and reduced capital costs across entire systems. Key features include: Numerical and experimental research algorithms Discrete vortex method applications Geometric similarities in vortex zone patterns "Universal" shapes for specific duct fittings Future development opportunities encompass enhanced fitting elements, expanded system components, and investigation of secondary vortex zones and contamination effects. This book significantly advances technical science by addressing energy consumption reduction, providing practical methodologies for designers to create more efficient and cost-effective ventilation systems.
Heat Transfer In Subsonic Separated Flows
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Author : Viktor I. Terekhov
language : en
Publisher: Springer Nature
Release Date : 2022-02-05
Heat Transfer In Subsonic Separated Flows written by Viktor I. Terekhov and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-05 with Science categories.
This book presents the results of scientific research performed over the past two decades by the authors. The book discusses some issues of separated laminar flows that are of great practical interest for the development of new technologies using microchannel flows, where separation zones can form. Of particular interest is the complex mechanism of flow separation with superimposed high external turbulence. The challenges of finding the optimal location for the cavities and fins on heat exchange surfaces are also considered. This is an important fundamental and practical problem when creating new schemes of efficient heat exchangers in various power plants. A wide class of problems of turbulent flow in tubes with flow separation is considered. These data will be useful in engineering estimates of the thermal–hydraulic efficiency of various heat transfer intensifiers. This book focuses on the analysis of thermal characteristics of separated flows, as well as the possibility of controlling the intensity of heat exchange processes, from the point of view of both their intensification and their suppression.