Flow and Noise Control: Review and Assessment of Future Directions
Author: Russell H. Thomas
Publisher:
Published: 2002
Total Pages: 98
ISBN-13:
DOWNLOAD EBOOKPosts
Flow and Noise Control: Review and Assessment of Future Directions
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
Published: 2018-09-23
Total Pages: 98
ISBN-13: 9781723952227
DOWNLOAD EBOOKTechnologies for developing radically new aerovehicles that would combine quantum leaps in cost, safety, and performance benefits with environmental friendliness have appeared on the horizon. This report provides both an assessment of the current state-of-the-art in flow and noise control and a vision for the potential gains to be made, in terms of performance benefit for civil and military aircraft and a unique potential for noise reduction, via future advances in flow and noise technologies. This report outlines specific areas of research that will enable the breakthroughs necessary to bring this vision to reality. Recent developments in many topics within flow and noise control are reviewed. The flow control overview provides succinct summaries of various approaches for drag reduction and improved maneuvering. Both exterior and interior noise problems are examined, including dominant noise sources, physics of noise generation and propagation, and both established and proposed concepts for noise reduction. Synergy between flow and noise control is a focus and, more broadly, the need to pursue research in a more concurrent approach involving multiple disciplines. Also discussed are emerging technologies such as nanotechnology that may have a significant impact on the progress of flow and noise control.Thomas, Russell H. and Choudhari, Meelan M. and Joslin, Ronald D.Langley Research CenterNOISE REDUCTION; AEROSPACE ENGINEERING; AEROSPACE VEHICLES; FLOW DISTRIBUTION; CONTROL SYSTEMS DESIGN; TECHNOLOGY ASSESSMENT; DRAG REDUCTION; COMPUTERIZED SIMULATION
Theory and Computation of Hydrodynamic Stability
Author: W. O. Criminale
Publisher: Cambridge University Press
Published: 2003-10-23
Total Pages: 465
ISBN-13: 0521632005
DOWNLOAD EBOOKThe study of hydrodynamic stability is fundamental to many subjects, ranging from geophysics and meteorology through to engineering design. This treatise covers both classical and modern aspects of the subject, systematically developing it from the simplest physical problems, then progressing chapter by chapter to the most complex, considering linear and nonlinear situations, and analysing temporal and spatial stability. The authors examine each problem both analytically and numerically: many chapters end with an appendix outlining relevant numerical techniques. All relevant fluid flows are treated, including those where the fluid may be compressible, or those from geophysics, or those that require salient geometries for description. Details of initial-value problems are explored equally with those of stability. As a result, the early transient period as well as the asymptotic fate for perturbations for a flow can be assessed. The text is enriched with many exercises, copious illustrations and an extensive bibliography and the result is a book that can be used with courses on hydrodynamic stability or as an authoritative reference for researchers.
Theory and Computation in Hydrodynamic Stability
Author: W. O. Criminale
Publisher: Cambridge University Press
Published: 2018-12-06
Total Pages: 566
ISBN-13: 110869800X
DOWNLOAD EBOOKThe study of hydrodynamic stability is fundamental to many subjects, ranging from geophysics and meteorology through to engineering design. This treatise covers both classical and modern aspects of the subject, systematically developing it from the simplest physical problems, then progressing to the most complex, considering linear and nonlinear situations, and analyzing temporal and spatial stability. The authors examine each problem both analytically and numerically. Many relevant fluid flows are treated, including those where the fluid may be compressible, or those from geophysics, or those that require salient geometries for description. Details of initial-value problems are explored equally with those of stability. The text includes copious illustrations and an extensive bibliography, making it suitable for courses on hydrodynamic stability or as an authoritative reference for researchers. In this second edition the opportunity has been taken to update the text and, most importantly, provide solutions to the numerous extended exercises.
Advances in Electronic and Electrochemical Ceramics
Author: Faith Dogan
Publisher: John Wiley & Sons
Published: 2012-04-11
Total Pages: 227
ISBN-13: 1118407903
DOWNLOAD EBOOKThis proceedings contains papers presented at the Electronics inExtreme Environments, International Fuel Cells and Related Systems,and Advanced Dielectrics for Wireless Communicationssymposia.
Transit Noise and Vibration Impact Assessment
Author:
Publisher:
Published: 1995
Total Pages: 238
ISBN-13:
DOWNLOAD EBOOKThis manual provides direction for the preparation of noise and vibration sections of environmental documents for mass transportation projects. The manual has been developed in the interest of promoting quality and uniformity in assessments. It is expected to be used by people associated with or affected by the urban transit industry, including Federal Transit Administration (FTA) staff, grant applicants, consultants and the general public. Each of these groups has an interest in noise/vibration assessment, but not all have the need for all the details of the process. Consequently, this manual has been prepared to serve readers with varying levels of technical background and interests. It sets forth the basic concepts, methods and procedures for documenting the extent and severity of noise impacts from transit projects.
AIAA Journal
Author: American Institute of Aeronautics and Astronautics
Publisher:
Published: 2006
Total Pages: 958
ISBN-13:
DOWNLOAD EBOOKTraffic Flow Dynamics
Author: Martin Treiber
Publisher: Springer Science & Business Media
Published: 2012-10-11
Total Pages: 505
ISBN-13: 3642324592
DOWNLOAD EBOOKThis textbook provides a comprehensive and instructive coverage of vehicular traffic flow dynamics and modeling. It makes this fascinating interdisciplinary topic, which to date was only documented in parts by specialized monographs, accessible to a broad readership. Numerous figures and problems with solutions help the reader to quickly understand and practice the presented concepts. This book is targeted at students of physics and traffic engineering and, more generally, also at students and professionals in computer science, mathematics, and interdisciplinary topics. It also offers material for project work in programming and simulation at college and university level. The main part, after presenting different categories of traffic data, is devoted to a mathematical description of the dynamics of traffic flow, covering macroscopic models which describe traffic in terms of density, as well as microscopic many-particle models in which each particle corresponds to a vehicle and its driver. Focus chapters on traffic instabilities and model calibration/validation present these topics in a novel and systematic way. Finally, the theoretical framework is shown at work in selected applications such as traffic-state and travel-time estimation, intelligent transportation systems, traffic operations management, and a detailed physics-based model for fuel consumption and emissions.
Australian High Country Raptors
Author: Jerry Olsen
Publisher: CSIRO PUBLISHING
Published: 2014-06-18
Total Pages: 337
ISBN-13: 064310917X
DOWNLOAD EBOOKAustralian High Country Raptors covers raptor species that regularly breed in the high country above 600 metres, from Goulburn in New South Wales down to the hills outside Melbourne, Victoria. Author Jerry Olsen explores the nature of these striking animals that are classified as Accipitriformes (diurnal hawks, falcons, kites and eagles), Falconiformes and Strigiformes (nocturnal owls). Comparisons between these high country raptors and lower-elevation breeders are also provided, in addition to comparisons with raptors found overseas, especially from North America and Europe. The book begins with a description of habitats and vegetation types in the high country, and which raptors are likely to be seen in each habitat type. It continues with sections on finding and watching raptors, raptor identification, hunting styles, food, breeding and behaviour, and conservation. Appendices provide species accounts for diurnal breeding species in the high country, with basic information about their ecology, distribution and conservation, as well as detailed instructions about handling an injured or orphaned raptor. Illustrated throughout with photographs and drawings, Australian High Country Raptors offers readers a chance to look into the lives of Australia’s fascinating birds of prey.
43rd AIAA Aerospace Sciences Meeting & Exhibit
Author:
Publisher:
Published: 2005
Total Pages: 598
ISBN-13:
DOWNLOAD EBOOK