Download or read book Roughness and Chamber Dimension Effects on Induced Flow and Frictional Resistance of Enclosed Rotating Disks written by James W. Daily and published by . This book was released on 1958 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Turbomachinery written by Earl Logan, Jr. and published by CRC Press. This book was released on 2003-05-01 with total page 829 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the success of its predecessor, Handbook of Turbomachinery, Second Edition presents new material on advances in fluid mechanics of turbomachinery, high-speed, rotating, and transient experiments, cooling challenges for constantly increasing gas temperatures, advanced experimental heat transfer and cooling effectiveness techniques, and propagation of wake and pressure disturbances. Completely revised and updated, it offers updated chapters on compressor design, rotor dynamics, and hydraulic turbines and features six new chapters on topics such as aerodynamic instability, flutter prediction, blade modeling in steam turbines, multidisciplinary design optimization.
Download or read book NASA Technical Note written by and published by . This book was released on 1972 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic Research in the United States 1959 written by United States. National Bureau of Standards and published by . This book was released on 1959 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic Research in the United States written by and published by . This book was released on 1956 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation of Windage loss Data for a Lundell Alternator written by Erwin E. Kempke (Jr.) and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viscous torque (windage) of a Lundell-shaped rotor having a major diameter of 20.3 cm (8 in.) rotating within a concentric housing was measured at speeds up to 36,000 rpm. The center cylindrical section of the housing was tested with both a smooth surface and axial slots to simulate alternator winding slots. For concentric cylinders, the range of Reynolds numbers was extended to 70,000. Three radial clearances, 1, 2, and 4 mm (0.04, 0.08, and 0.16in.), corresponding to 1, 2, and 4 percent of the rotor radius, were tested.
Download or read book National Bureau of Standards Miscellaneous Publication written by and published by . This book was released on 1959 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by United States. National Bureau of Standards and published by . This book was released on 1959 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Enclosed Rotating Disks with Superposed Throughflow written by James W. Daily and published by . This book was released on 1962 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A qualitative study was made of the flow field induced by an enclosed rotating disk with a radially outward throughflow superposed using air as the test fluid. The purpose of this survey is a determination of the range of variables at which important phenomena occur so that a quantitative study of surface resistance, pressure and velocity distribution and other observed phenomena such as unsteadiness, boundary layer separation and stall may be made. Disks of 18-1/8 inches diameter enclosed in a housing in which axial spacing could be varied from 1/8 inch to 2-1/8 inches were used in this study. Througflow was admitted in the axial direction at the front and rear of the disk housing in such a way as to make the flow on both sides of the disk as symmetrical as possible. Flow visualization was made possible using smoke injected at various points. Stroboscopic photography aided the visual observations of the flow field. Transition to turbulence was observed to be a function of the local Reynolds number ... and the axial spacing. It was observed that the torque was increased by throughflow over the corresponding value without throughflow. A systematic change in the pressure field was observed with increasing amounts of throughflow. Of particular interest is the observation under certain conditions of large periodic fluctuations, the frequency of which is related to the rotational speed, and the amount of throughflow.
Download or read book Current Hydraulic Laboratory Research in the United States written by and published by . This book was released on 1959 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Miscellaneous Publication National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1934 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Research Memorandum of the Chairman Transmitting Reports of Federal Department written by United States. Congress. Senate. Interior and Insular Affairs and published by . This book was released on 1962 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Centrifugal Pumps written by Johann Friedrich Gülich and published by Springer Science & Business Media. This book was released on 2010-05-25 with total page 999 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life is linked to liquid transport, and so are vital segments of economy. Pumping devices – be it the human heart, a boiler feeder or the cooling-water pump of a motorcar – are always part of a more or less complex system where pump failure can lead to severe consequences. To select, operate or even design a pump, some understanding of the system is helpful, if not essential. Depending on the appli- tion, a centrifugal pump can be a simple device which could be built in a garage with a minimum of know-how – or a high-tech machine requiring advanced skills, sophisticated engineering and extensive testing. When attempting to describe the state-of-the-art in hydraulic engineering of centrifugal pumps, the focus is nec- sarily on the high-tech side rather than on less-demanding services even though these make up the majority of pump applications. Centrifugal pump technology involves a broad spectrum of flow phenomena which have a profound impact on design and operation through the achieved ef- ciency, the stability of the head-capacity characteristic, vibration, noise, com- nent failure due to fatigue, as well as material damage caused by cavitation, - dro-abrasive wear or erosion corrosion. Operation and life cycle costs of pumping equipment depend to a large extent on how well these phenomena and the inter- tion of the pump with the system are understood.
Download or read book Journal of Basic Engineering written by and published by . This book was released on 1968 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Research written by United States. Congress. Senate. Committee on Interior and Insular Affairs and published by . This book was released on 1962 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Flows written by Jean Piquet and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt: obtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.
Download or read book ASME Technical Papers written by and published by . This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
