Download or read book Vortex Rings Generated by a Shrouded Hartmann Sprenger Tube written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pulsed flow emitted from a shrouded Hartmann-Sprenger tube was sampled with high-frequency pressure transducers and with laser particle imaging velocimetry, and found to consist of a train of vortices. Thrust and mass flow were also monitored using a thrust plate and orifice, respectively. The tube and shroud lengths were altered to give four different operating frequencies. From the data, the radius, velocity, and circulation of the vortex rings was obtained. Each frequency corresponded to a different length to diameter ratio of the pulse of air leaving the driver shroud. Two of the frequencies had length to diameter ratios below the formation number, and two above. The formation number is the value of length to diameter ratio below which the pulse converts to a vortex ring only, and above which the pulse becomes a vortex ring plus a trailing jet. A modified version of the slug model of vortex ring formation was used to compare the observations with calculated values. Because the flow exit area is an annulus, vorticity is shed at both the inner and outer edge of the jet. This results in a reduced circulation compared with the value calculated from slug theory accounting only for the outer edge. If the value of circulation obtained from laser particle imaging velocimetry is used in the slug model calculation of vortex ring velocity, the agreement is quite good. The vortex ring radius, which does not depend on the circulation, agrees well with predictions from the slug model. DeLoof, Richard L. (Technical Monitor) and Wilson, Jack Glenn Research Center NASA/CR-2005-213576, AIAA Paper 2005-5163, E-15041-2
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2007 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 05 5131 05 5164 written by and published by . This book was released on 2005 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 41st AIAA ASME SAE ASEE Joint Propulsion Conference Exhibit 10 13 July 2005 Tucson Arizona 05 3800 05 3849 written by and published by . This book was released on 2005 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Simple Model of Pulsed Ejector Thrust Augmentation written by and published by . This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 38th AIAA ASME SAE ASEE Joint Propulsion Conference Exhibit 3600 02 3649 written by and published by . This book was released on 2002 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Hydraulic Resistance written by I. E. Idelchik and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook has been composed on the basis of processing, systematization and classification of the results of a great number of investigations published at different time. The essential part of the book is the outcome of investigations carried out by the author. The present edition of this handbook should assist in increasing the quality and efficiency of the design and usage of indutrial power engineering and other constructions and also of the devices and apparatus through which liquids and gases move.
Download or read book History of the Planetary Systems from Thales to Kepler written by John Louis Emil Dreyer and published by . This book was released on 1906 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Altitude wind tunnel Investigation of Westinghouse 19B 2 19B 8 and 19XB 1 Jet propulsion Engines written by William A. Fleming and published by . This book was released on 1948 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tectonics of the Himalaya written by S. Mukherjee and published by Geological Society of London. This book was released on 2015-09-28 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Himalayan mountain belt, which developed during the India–Asia collision starting about 55 Ma ago, is a dramatically active orogen and it is regarded as the classic collisional orogen. It is characterized by an impressively continuous 2500 km of tectonic units, thrusts and normal faults, as well as large volumes of high-grade metamorphic rocks and granites exposed at the surface. This constitutes an invaluable field laboratory, where amazing crustal sections can be observed directly in very deep gorges. It is possible to unravel the tectonic and metamorphic evolution of litho-units, to observe the mechanisms of exhumation of deep-seated rocks and the propagation of the deformation. Himalayan tectonics has been the target of many studies from numerous international researchers over the years. In the last 15 years there has been an explosion of data and theories from both geological and geophysical perspectives. This book presents the results of integrated multidisciplinary studies, including geology, petrology, magmatism, geochemistry, geochronology and geophysics, of the structures and processes affecting the continental lithosphere. These processes and their spatial and temporal evolution have major consequences on the geometry and kinematics of the India–Eurasia collision zone.
Download or read book The Biology of Horror written by Jack Morgan and published by SIU Press. This book was released on 2002 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aero thermodynamics and Flow in Turbomachines written by Michael H. Vavra and published by . This book was released on 1960 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Exchangers written by Sadık Kakaç and published by McGraw-Hill Companies. This book was released on 1981 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hollywood Highbrow written by Shyon Baumann and published by Princeton University Press. This book was released on 2018-06-05 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today's moviegoers and critics generally consider some Hollywood products--even some blockbusters--to be legitimate works of art. But during the first half century of motion pictures very few Americans would have thought to call an American movie "art." Up through the 1950s, American movies were regarded as a form of popular, even lower-class, entertainment. By the 1960s and 1970s, however, viewers were regularly judging Hollywood films by artistic criteria previously applied only to high art forms. In Hollywood Highbrow, Shyon Baumann for the first time tells how social and cultural forces radically changed the public's perceptions of American movies just as those forces were radically changing the movies themselves. The development in the United States of an appreciation of film as an art was, Baumann shows, the product of large changes in Hollywood and American society as a whole. With the postwar rise of television, American movie audiences shrank dramatically and Hollywood responded by appealing to richer and more educated viewers. Around the same time, European ideas about the director as artist, an easing of censorship, and the development of art-house cinemas, film festivals, and the academic field of film studies encouraged the idea that some American movies--and not just European ones--deserved to be considered art.
Download or read book Dentists written by Mary Meinking and published by Raintree. This book was released on 2021-08-05 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open wide! Dentists care for people's teeth. Give readers the inside scoop on what it's like to be a dentist. Readers will learn what dentists do, the tools they use, and how people get this exciting job.
Download or read book A Method for Analyzing the Impact of Changes and their Propagation in Manufacturing Systems written by Christian Plehn and published by Herbert Utz Verlag. This book was released on 2018-05-15 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Thesaurus written by and published by . This book was released on 1984 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
