Development Of An Aeroacoustic Methodology To Evaluate Heatshield Material Performance

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Development of an Aeroacoustic Methodology to Evaluate Heatshield Material Performance

Author : A. L. Laganelli
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Development of an Aeroacoustic Methodology to Evaluate Heatshield Material Performance by : A. L. Laganelli

Download or read book Development of an Aeroacoustic Methodology to Evaluate Heatshield Material Performance written by A. L. Laganelli and published by . This book was released on 1982 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental program was conducted in the AFWAL Mach 6 and AEDC shock Tube facilities in which acoustic fluctuating pressure data were acquired on flat plate TWCP specimens featuring smooth and rough surfaces. The TWCP specimens were instrumented with five Gulton microphones. The microphones placed in the model consisted of flush, ported, and backface (blind hole) locations. Several l/d ported orifices were examined as well as depths from the boundary layer surface for the backface gages. The AEDC tests were structured to examine optimum ported orifices prior to the AFWAL Mach 6 tests. The TWCP specimens were exposed to turbulent boundary layer conditions at tunnel stagnation pressures of 700, 1400, and 2100 psi with a total temperature of 1100 deg. R, respectively. A correlation was developed for the ported hole sensors that can be related to the flush mounted sensors. Characterizing the backface (blind hole) gages with surface mounted sensors will require further data interpretation due to vibration. In general, rough walls augmented the acoustic energy levels as expected. A biased rough pattern (20 deg, angled to flow) indicated that acoustic measurements could be used as a diagnostic technique to determine the surface characteristics of TWCP ablation patterns.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1098 pages
Book Rating : 4.3/5 (126 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Prediction of the Pressure Fluctuations Associated with Maneuvering Reentry Weapons

Author : Anthony L. Laganelli
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Prediction of the Pressure Fluctuations Associated with Maneuvering Reentry Weapons by : Anthony L. Laganelli

Download or read book Prediction of the Pressure Fluctuations Associated with Maneuvering Reentry Weapons written by Anthony L. Laganelli and published by . This book was released on 1984 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental program was conducted at the AEDC von Karman facility, Tunnels A and B, in which acoustic pressure fluctuation data were acquired on a 7 degree half-cone-angle model featuring a control surface. The objective was to define the aeroacoustic environment applicable to re-entry vibration response analysis for both ballistic and maneuvering vehicles. Wind tunnel measurements were obtained at Mach 4 and 8 for several values of freestream Reynolds number and model angle of attack. Stationary zones of laminar, transitional, and turbulent flow over the model were achieved. Acoustic data were reduced to rms fluctuating pressure, and power and cross-power spectral densities. Results were normalized using local boundary layer parameters for comparison with previous high speed measurements. The present study re-examined the aeroacoustic environment prediction capability relative to compressible flow conditions. Moreover, boundary layer characteristic lengths and velocities were reviewed in order to develop normalization procedures required for development of appropriate aeroacoustic scaling laws. It was determined that fluctuating pressure characteristics described by incompressible theory as well as empirical correlations could be modified to a compressible state through a transformation function. In this manner, compressible data were transformed to the incompressible plane where direct use of more tractable prediction techniques are available for engineering design analyses.

Technical Abstract Bulletin

Author :
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.E/5 ( download)

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Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1982 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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Publisher :
ISBN 13 :
Total Pages : 1604 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index: Keyword A-L

Author :
Publisher :
ISBN 13 :
Total Pages : 868 pages
Book Rating : 4.:/5 (319 download)

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Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1986 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Collection of Technical Papers: Structural dynamics II

Author :
Publisher :
ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis A Collection of Technical Papers: Structural dynamics II by :

Download or read book A Collection of Technical Papers: Structural dynamics II written by and published by . This book was released on 1991 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

Author :
Publisher :
ISBN 13 :
Total Pages : 856 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1982 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Program Solicitation

Author :
Publisher :
ISBN 13 :
Total Pages : 764 pages
Book Rating : 4.F/5 ( download)

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Download or read book Program Solicitation written by and published by . This book was released on 1989 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

AIAA 84-0101 - AIAA 84-0150

Author :
Publisher :
ISBN 13 :
Total Pages : 558 pages
Book Rating : 4.0/5 ( download)

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Download or read book AIAA 84-0101 - AIAA 84-0150 written by and published by . This book was released on 1984 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Literature Abstracts

Author : Society of Automotive Engineers
Publisher :
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Technical Literature Abstracts by : Society of Automotive Engineers

Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 1998 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Associations' Publications in Print

Author :
Publisher :
ISBN 13 :
Total Pages : 1508 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Associations' Publications in Print written by and published by . This book was released on 1981 with total page 1508 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1981- in 2 v.: v.1, Subject index; v.2, Title index, Publisher/title index, Association name index, Acronym index, Key to publishers' and distributors' abbreviations.

Aeronautical Engineering

Author :
Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Aeronautical Engineering by :

Download or read book Aeronautical Engineering written by and published by . This book was released on 1993 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 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)

Design and Development of Aerospace Vehicles and Propulsion Systems

Author : S. Kishore Kumar
Publisher : Springer Nature
ISBN 13 : 9811596018
Total Pages : 529 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Design and Development of Aerospace Vehicles and Propulsion Systems by : S. Kishore Kumar

Download or read book Design and Development of Aerospace Vehicles and Propulsion Systems written by S. Kishore Kumar and published by Springer Nature. This book was released on 2021-03-18 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers presented in the Symposium on Applied Aerodynamics and Design of Aerospace Vehicles (SAROD 2018), which was jointly organized by Aeronautical Development Agency (the nodal agency for the design and development of combat aircraft in India), Gas-Turbine Research Establishment (responsible for design and development of gas turbine engines for military applications), and CSIR-National Aerospace Laboratories (involved in major aerospace programs in the country such as SARAS program, LCA, Space Launch Vehicles, Missiles and UAVs). It brings together experiences of aerodynamicists in India as well as abroad in Aerospace Vehicle Design, Gas Turbine Engines, Missiles and related areas. It is a useful volume for researchers, professionals and students interested in diversified areas of aerospace engineering.

Safety Science Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 530 pages
Book Rating : 4.F/5 ( download)

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Download or read book Safety Science Abstracts written by and published by . This book was released on 1977 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 920 pages
Book Rating : 4.F/5 ( download)

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Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Integrated Design for Space Transportation System

Author : B.N. Suresh
Publisher : Springer
ISBN 13 : 8132225325
Total Pages : 761 pages
Book Rating : 4.1/5 (322 download)

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Book Synopsis Integrated Design for Space Transportation System by : B.N. Suresh

Download or read book Integrated Design for Space Transportation System written by B.N. Suresh and published by Springer. This book was released on 2015-11-20 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book addresses the overall integrated design aspects of a space transportation system involving several disciplines like propulsion, vehicle structures, aerodynamics, flight mechanics, navigation, guidance and control systems, stage auxiliary systems, thermal systems etc. and discusses the system approach for design, trade off analysis, system life cycle considerations, important aspects in mission management, the risk assessment, etc. There are several books authored to describe the design aspects of various areas, viz., propulsion, aerodynamics, structures, control, etc., but there is no book which presents space transportation system (STS) design in an integrated manner. This book attempts to fill this gap by addressing systems approach for STS design, highlighting the integrated design aspects, interactions between various subsystems and interdependencies. The main focus is towards the complex integrated design to arrive at an optimum, robust and cost effective space transportation system. The orbital mechanics of satellites including different coordinate frames, orbital perturbations and orbital transfers are explained. For launching the satellites to meet specific mission requirements, viz., payload/orbit, design considerations, giving step by step procedure are briefed. The selection methodology for launch vehicle configuration, its optimum staging and the factors which influence the vehicle performance are summarized. The influence of external, internal and dynamic operating environments experienced by the vehicle subsystems and the remedial measures needed are highlighted. The mission design strategies and their influence on the vehicle design process are elaborated. The various critical aspects of STS subsystems like flight mechanics, propulsion, structures and materials, thermal systems, stage auxiliary systems, navigation, guidance and control and the interdependencies and interactions between them are covered. The design guidelines, complexity of the flight environment and the reentry dynamics for the reentry missions are included. The book is not targeted as a design tool for any particular discipline or subsystem. Some of the design related equations or expressions are not attempted to derive from the first principle as this is beyond the scope of this book. However, the important analytical expressions, graphs and sketches which are essential to provide in-depth understanding for the design process as well as to understand the interactions between different subsystems are appropriately included.