Application of Wall Functions to Generalized Non-orthogonal Curvilinear Coordimate Systems
Author: D. L. Sondak
Publisher:
Published: 1993
Total Pages:
ISBN-13:
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Author: D. L. Sondak
Publisher:
Published: 1993
Total Pages:
ISBN-13:
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Publisher:
Published: 1994
Total Pages: 880
ISBN-13:
DOWNLOAD EBOOKLists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Published: 1996
Total Pages: 940
ISBN-13:
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Published: 1993
Total Pages: 712
ISBN-13:
DOWNLOAD EBOOKA selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Author: James L. S. Chen
Publisher:
Published: 1992
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKAuthor: Wen-Jun Lu
Publisher: CRC Press
Published: 2022-05-18
Total Pages: 309
ISBN-13: 1000593932
DOWNLOAD EBOOKThis title provides a unique theoretical framework for multi-mode resonant antennas and different approaches to their implementation, with an emphasis on mode gauge functionality, a new concept for a clear identification and flexible control of all usable resonant modes in multi-mode resonant antenna design. The book commences by advancing a generalized odd-even mode theory as a general theoretical framework for resonant elementary antennas, offering new insights into the classical problem of coupling effects between antenna and transmission lines and helping reveal the operation mechanism of elementary antennas under multi-mode resonance. Then, the concept of "mode gauge" is developed and employed for wideband elementary antenna design by simultaneously exciting and tuning multiple resonant modes within a single radiator. Apart from theoretical explorations, the authors also provide analysis of up-to-date implementation of multi-mode resonant elementary antennas with different functionalities, including wideband antennas, circularly polarized antennas, multiband antennas, frequency scanning antennas and low-profile antennas. Academics, students and professional engineers at all levels will greatly benefit from the book and will be provided with historical background, state-of-the-art methodology, useful design tools and multiple applications of multi-mode resonant antennas.
Author: Wolfgang Nitsche
Publisher: Springer Science & Business Media
Published: 2013-11-11
Total Pages: 550
ISBN-13: 3663109011
DOWNLOAD EBOOKThis volume contains the papers of the 11th Symposium of the AG STAB (German Aerospace Aerodynamics Association). In this association those scientists and engineers from universities, research-establishments and industry are involved, who are doing research and project work in numerical and experimental fluid mechanics and aerodynamics for aerospace and other applications. Many of the contributions are giving results from the "Luftfahrtforschungsprogramm der Bundesregierung (German Aeronautical Research Programme). Some of the papers report on work sponsored by the Deutsche Forschungsgemeinschaft, DFG, which also was presented at the symposium. The volume gives a broad overview over the ongoing work in this field in Germany.