Internal Flow

Author: E. M. Greitzer
Publisher: Cambridge University Press
ISBN: 9781139451116
Format: PDF, Mobi
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This book describes the analysis and behaviour of internal flows encountered in propulsion systems, fluid machinery (compressors, turbines and pumps) and ducts (diffusers, nozzles and combustion chambers). The focus is on phenomena that are important in setting the performance of a broad range of fluid devices. The authors show that even for complex processes one can learn a great deal about the behaviour of such devices from a clear understanding and rigorous use of basic principles. Throughout the book they illustrate theoretical principles by reference to technological applications. The strong emphasis on fundamentals, however, means that the ideas presented can be applied beyond internal flow to other types of fluid motion. The book equips students and practising engineers with a range of new analytical tools. These tools offer enhanced interpretation and application of both experimental measurements and the computational procedures that characterize modern fluids engineering.

Future of Battlespace Situational Awareness

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309286247
Format: PDF
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Future Battlespace Situational Awareness is the third workshop in an ongoing series of workshops conducted by the National Research Council's Committee for Science and Technology Challenges to U.S. National Security Interests. The first two workshops looked at individual technologies related to "big" data and future antennas and provided context for the topic addressed in the third workshop-the planning of a future warfare scenario. The objectives for the third workshop were to review technologies that enable battlespace situational awareness 10-20 years into the future for red and blue forces; and emphasize the capabilities within air, land, sea, space, and cyberspace. The workshop was held on May 30-31, 2012, in Suffolk, Virginia, at the Lockheed Martin Center for Innovation. The sessions were not open to the public because they involved discussions of classified material, including data addressing vulnerabilities, indicators, and observables. This series of workshops address U.S. and foreign research, why S&T applications of technologies in development are important in the context of military capabilities, and what critical scientific breakthroughs are needed to achieve advances in the fields of interest- focusing detailed attention on specific developments in the foregoing fields that might have national security implications for the United States. These workshops also consider methodology to track the relevant technology landscape for the future. The three workshops feature invited presentations and panelists and include discussions on a selected topic including themes relating to defense warning and surprise. Future of Battlespace Situational Awareness summarizes the third workshop.

Theory of Aerospace Propulsion

Author: Pasquale M Sforza
Publisher: Elsevier
ISBN: 012384889X
Format: PDF, ePub, Docs
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Readers of this book will be able to: utilize the fundamental principles of fluid mechanics and thermodynamics to analyze aircraft engines, understand the common gas turbine aircraft propulsion systems and be able to determine the applicability of each, perform system studies of aircraft engine systems for specified flight conditions, perform preliminary aerothermal design of turbomachinery components, and conceive, analyze, and optimize competing preliminary designs for conventional and unconventional missions. Early coverage of cycle analysis provides a systems perspective, and offers context for the chapters on turbomachinery and components Broader coverage than found in most other books - including coverage of propellers, nuclear rockets, and space propulsion - allows analysis and design of more types of propulsion systems In depth, quantitative treatments of the components of jet propulsion engines provides the tools for evaluation and component matching for optimal system performance Worked examples and end of chapter exercises provide practice for analysis, preliminary design, and systems integration

Summary of a Workshop on the Future of Antennas

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309266866
Format: PDF, Kindle
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The Workshop on the Future of Antennas was the second of three workshops conducted by the National Research Council's Committee for Science and Technology Challenges to U.S. National Security Interests. The objectives of the workshop were to review trends in advanced antenna research and design, review trends in commercials and military use of advanced antennas that enable improved communication, data transfer, soldier health monitoring, and other overt and covert methods of standoff data collection. The first day's sessions, consisting of five presentations and discussions on antennas and wireless communications and control, were open to committee members, staff, guests, and members of the public. The second day was a data-gathering session addressing vulnerabilities, indicators, and observables; presentations and discussions during this session included classified material and were not open to the public. The committee's role was limited to planning and convening the workshop. This report is organized by topic in the order of presentation and discussion at the workshop. For Day 1 the topics were Future of Antennas, Commercial State of the Art of Wireless Communications and Control, Military State of the Art of Wireless Communications and Control, and Future Trends in Antenna Design and Wireless Communications and Control. For Day 2 the topics were Vulnerabilities of Ubiquitous Antennas, and Indicators and Observables, followed by a wrap-up discussion. Summary of a Workshop on the Future of Antennas describes what happened at the workshop.

Gas Turbines

Author: Bijay Sultanian
Publisher: Cambridge University Press
ISBN: 1107170095
Format: PDF, Docs
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This physics-first, design-oriented textbook explains concepts of gas turbine secondary flows, reduced-order modeling methods, and 3-D CFD.