Visualization of Secondary-flow Phenomena in Blade Row
Author | : H. Z. Herzig |
Publisher | : |
Total Pages | : 26 |
Release | : 1952 |
Genre | : Aeronautics |
ISBN | : |
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Author | : H. Z. Herzig |
Publisher | : |
Total Pages | : 26 |
Release | : 1952 |
Genre | : Aeronautics |
ISBN | : |
Author | : Arthur G. Hansen |
Publisher | : |
Total Pages | : 106 |
Release | : 1953 |
Genre | : Aeronautics |
ISBN | : |
Flow-visualization techniques are employed to ascertain the streamline patterns of the nonpotential, secondary flows in the boundary layers of cascades, thereby providing a basis for more extended analyses in turbomachines. The three-dimensional deflection of the end-wall boundary layer results in the formation of a vortex well up in each cascade passage. The size and tightness of the vortex generated depend upon the main flow turning in the cascade passage. Once formed, a vortex resists turning in subsequent blade rows. This results in unfavorable angles of attack and possible flow disturbances on the pressure surfaces of subsequent blade rows when the vortices impinge on these surfaces.
Author | : Harold E. Rohlik |
Publisher | : |
Total Pages | : 38 |
Release | : 1953 |
Genre | : Air flow |
ISBN | : |
In order to increase understanding of the origin of losses in a turbine, the secondary-flow components in the boundary layers and the blade wakes of an annular cascade of turbine nozzle blades (vortex design) were investigated. A detailed study was made of the total-pressure contours and, particularly, of the inner-wall loss cores down-stream of the blades.
Author | : |
Publisher | : |
Total Pages | : 38 |
Release | : 1953 |
Genre | : Aeronautics |
ISBN | : |
Author | : Yasuki Nakayama |
Publisher | : |
Total Pages | : 172 |
Release | : 1988 |
Genre | : Science |
ISBN | : |
Flow Visualization always plays an important role in understanding flow phenomena and contributes significantly to the physical intuitive reasonong necessary to successfully apply the knowledge gained to real life situations. This book is designed to enhance the understanding of basic flow phenomena through over 200 high quality flow visualization photographs, some in colour, and explanations. The book opens with a summary of flow visualization methods, and then proceeds to present flow phenomena as revealed by various flow visualization techniques. The treatment ranges from fundamental aspects, such as laminar and turbulent flow, to engineering applications; for example, understanding why cavitation damage occurred on the runner of a Francis turbine. Current and new visualization techniques are employed such that invisible flow, as in air and water, is made clearly visible and comprehensible. Visualized Flow was compiled and edited under the guidance of the Japanese Society of Mechanical Engineers. This English edition will be indispensable to engineers, researchers and students in understanding flow phenomena across the wide range of sciences wherever fluid flow is important.
Author | : United States. National Advisory Committee for Aeronautics |
Publisher | : |
Total Pages | : 1276 |
Release | : 1955 |
Genre | : Aeronautics |
ISBN | : |
Author | : Hah |
Publisher | : Routledge |
Total Pages | : 464 |
Release | : 2017-10-02 |
Genre | : Technology & Engineering |
ISBN | : 1351406639 |
This festschrift in honor of Professor Budugur Lakshminarayana's 60th birthday-based on the proceedings of a symposium on Turbomachinery Fluid Dynamics and Heat Transfer held recently at The Pennsylvania State University, University Park-provides authoritative and conclusive research results as well as new insights into complex flow features found in the turbomachinery used for propulsion, power, and industrial applications. Explaining in detail compressors, heat transfer fields in turbines, computational fluid dynamics, and unsteady flows, Turbomachinery Fluid Dynamics and Heat Transfer covers: Mixing mechanisms, annulus wall boundary layers, and the flow field in transonic turbocompressors The numerical implementation of turbulence models in a computer code Secondary flows, film cooling, and thermal turbulence modeling The visualization method of modeling using liquid crystals Innovative techniques in the computational modeling of compressor and turbine flows measurement in unsteady flows as well as axial flows and compressor noise generation And much more Generously illustrated and containing key bibliographic citations, Turbomachinery Fluid Dynamics and Heat Transfer is an indispensable resource for mechanical, design, aerospace, marine, manufacturing, materials, industrial, and reliability engineers; and upper-level undergraduate and graduate students in these disciplines.
Author | : |
Publisher | : |
Total Pages | : 102 |
Release | : 19?? |
Genre | : Aerodynamics |
ISBN | : |
Author | : Lorenz G. Straub |
Publisher | : |
Total Pages | : 118 |
Release | : 1953 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 364 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : |