An Airfoil Table Computational Package Using the Navier-Stokes Method PDF Download

Author: Danny Tyrone Barnes
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 116

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Author:
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ISBN:
Category :
Languages : en
Pages : 48

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Author: Jacques Periaux
Publisher: Springer Science & Business Media
ISBN: 3322901939
Category : Technology & Engineering
Languages : en
Pages : 471

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This book is one of three volumes entitled "ECARP-European Computational Aerodynamics Research Project", which was supported by the European Union in the Aeronautics Area of the Industrial and Materials Technology Programme. This volume contains optimization techniques for a number of inviscid and viscous problems like drag reduction, inverse, multipoint, wing-pylon-nacelle and riblets (Part A); and methodologies for solving the Navier Stokes equations on parallel architectures for compressible viscous flows in two and three dimensions (Part B). The main objective of this book is to disseminate information about cost effective methodologies for practical design problems and parallel CFD to be used by computer scientists and multidisciplinary engineers.

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Category :
Languages : en
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The Active Elevon Rotor (AER) system is being developed and evaluated by the Army and NASA at Ames Research Center, Moffett Field, CA. The conceptual and preliminary design of this system requires computational fluid dynamics (CFD). This could also be achieved with the use of a wind tunnel but that would be much more time consuming and costly. Three dimensional methods do exist, but two dimensional methods are all that are required for preliminary design. This study's method entails the creation of airfoil aerodynamic performance tables. These tables list the force and moment characteristics of the airfoil as a function of angle of attack for a given Reynolds and Mach number. Because this is an active elevon system the geometry of the airfoil varies. The airfoil is the VR18 airfoil with the elevon being represented by a fifteen percent chord flap. The deflections are from negative ten degrees to plus ten degrees in increments of one degree. This means twenty-one geometries and tables in total. The airfoil tables are in the Standard format and include lift, drag, and pitching moment for the entire airfoil and the flap alone. The calculations of these coefficients are being performed with the use of a Reynolds-averaged Navier-Stokes flow solver called ARC2D, which was developed by Pulliam and Steger at the NASA Ames Research Center. The airfoil tables in this study have a Mach number range of 0.3 to 0.875, and the complete -180 to +180 degree angle of attack range. With all these variations, the total number of simulation cases for this study is 7,852. These cases were all computed on the NASA supercomputer Columbia at Ames Research Center.

Author:
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Category : Aeronautics
Languages : en
Pages : 652

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Author: Egon Krause
Publisher: Springer Science & Business Media
ISBN: 3642593542
Category : Mathematics
Languages : en
Pages : 517

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This book presents the state-of-the-art in modeling and simulation on supercomputers. Leading German research groups present their results achieved on high-end systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2002. Reports cover all fields of supercomputing simulation ranging from computational fluid dynamics to computer science. Special emphasis is given to industrially relevant applications. Moreover, by presenting results for both vector sytems and micro-processor based systems the book allows to compare performance levels and usability of a variety of supercomputer architectures. It therefore becomes an indispensable guidebook to assess the impact of the Japanese Earth Simulator project on supercomputing in the years to come.

Author: Egon Stanewsky
Publisher: Springer Science & Business Media
ISBN: 3322907112
Category : Technology & Engineering
Languages : en
Pages : 432

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This volume contains the description of an EC-sponsered program to study all relevant aspects of shock/ boundary-layer interaction control, the latter designed to improve aircraft performance at design (cruise) and off-design conditions. The work being presented includes a discussion of basic control experiments and the corresponding physical modeling, to account for shock control and a discussion of the airfoil experiments conducted for code validation and control assessment, in conjunction with the basic experiments and computations. The contents is comprised of a section giving a broad overview of the research carried out here and more detailed individual contributions by the participants in the research. Der Band enthält den Abschlußbericht eines von EU geförderten Projekts EUROSHOCK, das alle relevanten Aspekte der Kontrolle von Stoßfronten und Grenzschichten (wichtig z.B. für die Verbesserung der Flugeigenschaften von Fluzeugen) untersuchte. Neben einer ausführlichen Diskussion der grundlegenden Kontrollexperimente und der zugrundeliegenden Modellierung werden auch die Versuche an Tragflächen beschrieben, die zur Validierung von Modellrechnungen durchgeführt werden. Darüber hinaus enthält der Band auch die detaillierten Ergebnisse der Teilnehmer an dem Forschungsprogramm.

Author: S.N. Atluri
Publisher: Springer Science & Business Media
ISBN: 3642796540
Category : Technology & Engineering
Languages : en
Pages : 3181

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AI!, in the earlier conferences (Tokyo, 1986; Atlanta, 1988, Melbourne, 1991; and Hong Kong, 1992) the response to the call for presentations at ICES-95 in Hawaii has been overwhelming. A very careful screening of the extended abstracts resulted in about 500 paper being accepted for presentation. Out of these, written versions of about 480 papers reached the conference secretariat in Atlanta in time for inclusion in these proceedings. The topics covered at ICES-95 range over the broadest spectrum of computational engineering science. The editors thank the international scientific committee, for their advice and encouragement in making ICES-95 a successful scientific event. Special thanks are expressed to the International Association for Boundary Elements Methods for hosting IABEM-95 in conjunction with ICES-95. The editors here express their deepest gratitude to Ms. Stacy Morgan for her careful handling of a myriad of details of ICES-95, often times under severe time constraints. The editors hope that the readers of this proceedings will find a kaleidoscopic view of computational engineering in the year 1995, as practiced in various parts of the world. Satya N. Atluri Atlanta, Georgia, USA Genki Yagawa Tokyo,Japan Thomas A. Cruse Nashville, TN, USA Organizing Committee Professor Genki Yagawa, University of Tokyo, Japan, Chair Professor Satya Atluri, Georgia Institute of Technology, U.S.A.

Author: D. Yogi Goswami
Publisher: CRC Press
ISBN: 142004432X
Category : Science
Languages : en
Pages : 926

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Discussing methods for maximizing available energy, Energy Conversion surveys the latest advances in energy conversion from a wide variety of currently available energy sources. The book describes energy sources such as fossil fuels, biomass including refuse-derived biomass fuels, nuclear, solar radiation, wind, geothermal, and ocean, then provides the terminology and units used for each energy resource and their equivalence. It includes an overview of the steam power cycle, gas turbines, internal combustion engines, hydraulic turbines, Stirling engines, advanced fossil fuel power systems, and combined-cycle power plants. It outlines the development, current use, and future of nuclear fission. The book also gives a comprehensive description of the direct energy conversion methods, including, Photovoltaics, Fuel Cells, Thermoelectric conversion, Thermionics and MHD It briefly reviews the physics of PV electrical generation, discusses the PV system design process, presents several PV system examples, summarizes the latest developments in crystalline silicon PV, and explores some of the present challenges facing the large scale deployment of PV energy sources. The book discusses five energy storage categories: electrical, electromechanical, mechanical, direct thermal, and thermochemical and the storage media that can store and deliver energy. With contributions from researchers at the top of their fields and on the cutting edge of technologies, the book provides comprehensive coverage of end use efficiency of green technology. It includes in-depth discussions not only of better efficient energy management in buildings and industry, but also of how to plan and design for efficient use and management from the ground up.

Author: Snorri Gudmundsson
Publisher: Butterworth-Heinemann
ISBN: 0128226471
Category : Business & Economics
Languages : en
Pages : 1146

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General Aviation Aircraft Design, Second Edition, continues to be the engineer’s best source for answers to realistic aircraft design questions. The book has been expanded to provide design guidance for additional classes of aircraft, including seaplanes, biplanes, UAS, high-speed business jets, and electric airplanes. In addition to conventional powerplants, design guidance for battery systems, electric motors, and complete electric powertrains is offered. The second edition contains new chapters: Thrust Modeling for Gas Turbines Longitudinal Stability and Control Lateral and Directional Stability and Control These new chapters offer multiple practical methods to simplify the estimation of stability derivatives and introduce hinge moments and basic control system design. Furthermore, all chapters have been reorganized and feature updated material with additional analysis methods. This edition also provides an introduction to design optimization using a wing optimization as an example for the beginner. Written by an engineer with more than 25 years of design experience, professional engineers, aircraft designers, aerodynamicists, structural analysts, performance analysts, researchers, and aerospace engineering students will value the book as the classic go-to for aircraft design. The printed book is now in color, with 1011 figures and illustrations! Presents the most common methods for conceptual aircraft design Clear presentation splits text into shaded regions, separating engineering topics from mathematical derivations and examples Design topics range from the "new" 14 CFR Part 23 to analysis of ducted fans. All chapters feature updated material with additional analysis methods. Many chapters have been reorganized for further help. Introduction to design optimization is provided using a wing optimization as an example for the beginner Three new chapters are offered, two of which focus on stability and control. These offer multiple practical methods to simplify the estimation of stability derivatives. The chapters introduce hinge moments and basic control system design Real-world examples using aircraft such as the Cirrus SR-22 and Learjet 45