Wind Tunnels And Experimental Fluid Dynamics Research

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Wind Tunnels and Experimental Fluid Dynamics Research

Author : Jorge Colman Lerner,Ulfilas Boldes
Publisher : BoD – Books on Demand
Page : 728 pages
File Size : 48,6 Mb
Release : 2011-07-27
Category : Science
ISBN : 9789533076232

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Wind Tunnels and Experimental Fluid Dynamics Research by Jorge Colman Lerner,Ulfilas Boldes Pdf

The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.

Wind Tunnels and Experimental Fluid Dynamics Research

Author : Jorge Colman Lerner,Ulfilas Boldes
Publisher : IntechOpen
Page : 726 pages
File Size : 54,5 Mb
Release : 2011-07-27
Category : Science
ISBN : 9533076232

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Wind Tunnels and Experimental Fluid Dynamics Research by Jorge Colman Lerner,Ulfilas Boldes Pdf

The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.

Wind Tunnels

Author : Justin D. Pereira
Publisher : Nova Science Publishers
Page : 0 pages
File Size : 41,9 Mb
Release : 2011
Category : Aerodynamics
ISBN : 1612092047

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Wind Tunnels by Justin D. Pereira Pdf

This book presents current research in the study of wind tunnels, including the design, execution and numerical rebuilding of a plasma wind tunnel with the aim to analyse shock wave boundary layer interaction phenomena; the Mainz vertical wind tunnel facility experimenting on cloud physics and chemistry; an air-conditioned wind tunnel environment for the study of mass and heat flux; using wind tunnel studies to evaluate the drag coefficient of the tree crown and Pre-X aerodynamic/aerothermal characterisation through computational fluid dynamics and wind tunnels.

Investigation of Correction Methods for Interference Effects in Open-Jet Wind Tunnels

Author : Oliver Fischer
Publisher : Springer
Page : 144 pages
File Size : 52,8 Mb
Release : 2018-03-13
Category : Technology & Engineering
ISBN : 9783658213794

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Investigation of Correction Methods for Interference Effects in Open-Jet Wind Tunnels by Oliver Fischer Pdf

Oliver Fischer analyzes the interference effects occurring in free-stream wind tunnels as well as their correction and simulation. With this work, the investigated correction method and the comparability of its results as well as flow simulation results are improved. The model wind tunnel of the IVK, University of Stuttgart, is simulated in various wind tunnel configurations. The application of a correction procedure to the corresponding experimental data from the model wind tunnel of the IVK is examined. These correction results are directly comparable with interference-free simulation results and thus allow a conclusion on the functionality of the correction method. Based on these findings, this thesis proposes a modification of the correction method that improves the comparability of corrected experimental results and CFD simulations in idealized test conditions. About the Author Oliver Fischer works as an engineer in aerodynamics development for a renowned German automobile manufacturer.

Wind Tunnel Test Techniques

Author : Colin Britcher,Drew Landman
Publisher : Academic Press
Page : 672 pages
File Size : 40,6 Mb
Release : 2023-10-20
Category : Technology & Engineering
ISBN : 9780128181003

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Wind Tunnel Test Techniques by Colin Britcher,Drew Landman Pdf

Wind Tunnel Test Techniques: Design and Use at Low and High Speeds with Statistical Engineering Applications provides an up-to-date treatment of the topic. Beginning with a brief history of wind tunnels and its types and uses, the book goes on to cover subsonic, supersonic and hypersonic wind tunnel design and construction, calibration, boundary corrections, flow quality assessment, pressure surveys, and dynamic testing. It also focuses on wind tunnel facilities, making it useful for both the designer and operator. Engineers and graduate students in aerospace, automotive and similar programs will find this book useful in their work with experimental aerodynamics, gas dynamics, facility design and performance. Deals with a broad range of flow speeds in wind tunnels, from low speed to high speed Provides a discussion of similarity laws as well as material on statistical analysis Includes coverage on facility-to-facility and facility-to-CFD correlation Presents advanced topics such as cryogenic wind tunnels, ground simulation in automotive testing, and propulsion testing

Analysis of Post-support and Wind-tunnel Wall Interference on Flow Field about Subsonic High-lift High-speed Research Configuration

Author : Wendy B. Lessard
Publisher : Unknown
Page : 48 pages
File Size : 45,9 Mb
Release : 2000
Category : Aerodynamics, Supersonic
ISBN : NASA:31769000451594

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Analysis of Post-support and Wind-tunnel Wall Interference on Flow Field about Subsonic High-lift High-speed Research Configuration by Wendy B. Lessard Pdf

The present study was performed to determine how significant the interference effects of the wind-tunnel model support system and tunnel walls can be for a high-speed configuration during takeoff and landing conditions. A 5-percent scale model of the Technology Concept Airplane was recently tested in the Langley 14- by 22-Foot Subsonic Tunnel. The model was numerically modeled with and without the support and tunnel walls and compared with experimental data. Detailed analysis of the flow provided additional insight concerning what effects the postsupport and tunnel walls had on the flow field. This study revealed that although the overall forces and moments could be experimentally accounted for, the detailed flow features, such as the surface pressure distributions, could not be accurately simulated without including the post in the computations.

Frontiers in Experimental Fluid Mechanics

Author : Mohamed Gad-el-Hak
Publisher : Springer Science & Business Media
Page : 538 pages
File Size : 54,5 Mb
Release : 2013-03-08
Category : Science
ISBN : 9783642838316

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Frontiers in Experimental Fluid Mechanics by Mohamed Gad-el-Hak Pdf

Dynamical systems theory and flow control are two research areas of great current interest. These and other special situations are among the topics covered in this volume. Each article emphasizes the use of experiments to achieve better physical understanding of a particular class of flow problems. The topics covered were chosen because of their importance to the field, recent appeal, and potential for future development. The articles are comprehensive and coverage is pedagogical with a bias towards recent developments.

Experimental Aerodynamics

Author : Bruno Chanetz,Jean Délery,Patrick Gilliéron,Patrick Gnemmi,Erwin R. Gowree,Philippe Perrier
Publisher : Springer Nature
Page : 329 pages
File Size : 52,7 Mb
Release : 2020-01-03
Category : Science
ISBN : 9783030355623

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Experimental Aerodynamics by Bruno Chanetz,Jean Délery,Patrick Gilliéron,Patrick Gnemmi,Erwin R. Gowree,Philippe Perrier Pdf

This book presents experimental techniques in the field of aerodynamics, a discipline that is essential in numerous areas, such as the design of aerial and ground vehicles and engines, the production of energy, and understanding the wind resistance of buildings. Aerodynamics is not only concerned with improving the performance and comfort of vehicles, but also with reducing their environmental impact. The book provides updated information on the experimental and technical methods used by aerodynamicists, engineers and researchers. It describes the various types of wind tunnels – from subsonic to hypersonic – as well as the problems posed by their design and operation. The book also focuses on metrology, which has allowed us to gain a detailed understanding of the local properties of flows, and examines current developments toward creating a methodology combining experiments and numerical simulations: the computer-assisted wind tunnel. Lastly, it offers an overview of experimental aerodynamics based on a prospective vision of the discipline, and discusses potential futures challenges. The book can be used as a textbook for graduate courses in aerodynamics, typically offered to students of aerospace and mechanical engineering programs, and as a learning tool for professionals and engineers in the fields of aerodynamics, aeronautics and astronautics automobile.

Role of Computational Fluid Dynamics and Wind Tunnels in Aeronautics R and D

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 70 pages
File Size : 44,5 Mb
Release : 2018-05-22
Category : Electronic
ISBN : 1719501149

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Role of Computational Fluid Dynamics and Wind Tunnels in Aeronautics R and D by National Aeronautics and Space Administration (NASA) Pdf

The purpose of this report is to investigate the status and future projections for the question of supplantation of wind tunnels by computation in design and to intuit the potential impact of computation approaches on wind-tunnel utilization all with an eye toward reducing the infrastructure cost at aeronautics R&D centers. Wind tunnels have been closing for myriad reasons, and such closings have reduced infrastructure costs. Further cost reductions are desired, and the work herein attempts to project which wind-tunnel capabilities can be replaced in the future and, if possible, the timing of such. If the possibility exists to project when a facility could be closed, then maintenance and other associated costs could be rescheduled accordingly (i.e., before the fact) to obtain an even greater infrastructure cost reduction. Malik, Murjeeb R. and Bushnell, Dennis M. Langley Research Center COMPUTATIONAL FLUID DYNAMICS; AERONAUTICS; WIND TUNNEL TESTS; AIRCRAFT DESIGN; AEROSPACE VEHICLES; TURBULENCE MODELS; RESEARCH AND DEVELOPMENT; COST REDUCTION; ALGORITHMS; LARGE EDDY SIMULATION; NAVIER-STOKES EQUATION; THREE DIMENSIONAL FLOW; SEPARATED FLOW

Instrumentation, Measurements, and Experiments in Fluids

Author : Ethirajan Rathakrishnan
Publisher : CRC Press
Page : 613 pages
File Size : 42,5 Mb
Release : 2016-12-19
Category : Science
ISBN : 9781315394855

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Instrumentation, Measurements, and Experiments in Fluids by Ethirajan Rathakrishnan Pdf

Mechanical engineers involved with flow mechanics have long needed an authoritative reference that delves into all the essentials required for experimentation in fluids, a resource that can provide fundamental review, as well as the details necessary for experimentation on everything from household appliances to hi-tech rockets. Instrumentation, Measurements, and Experiments in Fluids meets this challenge, as its author is not only a highly respected pioneer in fluids, but also possesses twenty years experience teaching students of all levels. He clearly explains fundamental principles as well the tools and methods essential for advanced experimentation. Reflecting an awe for flow mechanics, along with a deep-rooted knowledge, the author has assembled a fourteen chapter volume that is destined to become a seminal work in the field. Providing ample detail for self study and the sort of elegant writing rarely found in so thorough a treatment, he provides insight into all the vital topics and issues associated with the devices and instruments used for fluid mechanics and gas dynamics experiments. Extremely organized, this work presents easy access to the principles behind the science and goes on to elucidate the current research and findings needed by those seeking to make further advancement. Unique and Thorough Coverage of Uncertainty Analysis The author provides valuable insight into the vital issues associated with the devices used in fluid mechanics and gas dynamics experiments. Leaving nothing to doubt, he tackles the most difficult concepts and ends the book with an introduction to uncertainty analysis. Structured and detailed enough for self study, this volume also provides the backbone for both undergraduate and graduate courses on fluids experimentation.

Computational Fluid Dynamics for Wind Engineering

Author : R. Panneer Selvam
Publisher : John Wiley & Sons
Page : 245 pages
File Size : 45,6 Mb
Release : 2022-09-06
Category : Technology & Engineering
ISBN : 9781119845058

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Computational Fluid Dynamics for Wind Engineering by R. Panneer Selvam Pdf

COMPUTATIONAL FLUID DYNAMICS FOR WIND ENGINEERING An intuitive and comprehensive exploration of computational fluid dynamics in the study of wind engineering Computational Fluid Dynamics for Wind Engineering provides readers with a detailed overview of the use of computational fluid dynamics (CFD) in understanding wind loading on structures, a problem becoming more pronounced as urban density increases and buildings become larger. The work emphasizes the application of CFD to practical problems in wind loading and helps readers understand important associated factors such as turbulent flow around buildings and bridges. The author, with extensive research experience in this and related fields, offers relevant and engaging practice material to help readers learn and retain the concepts discussed, and each chapter includes accessible summaries at the end. In addition, the use of the OpenFOAM tool—an open-source wind engineering application—is explored. Computational Fluid Dynamics for Wind Engineering covers topics such as: Fluid mechanics, turbulence in fluid mechanics, turbulence modelling, and mathematical modelling of wind engineering problems The finite difference method for CFD, solutions to the incompressible Navier-Stokes equations, visualization, and animation in CFD, and the application of CFD to building and bridge aerodynamics How to compare CFD analysis with wind tunnel measurements, field measurements, and the ASCE-7 pressure coefficients Wind effects and strain on large structures Providing comprehensive coverage of how CFD can explain wind load on structures along with helpful examples of practical applications, Computational Fluid Dynamics for Wind Engineering serves as an invaluable resource for senior undergraduate students, graduate students, researchers and practitioners of civil and structural engineering.

Wind Tunnels

Author : Satoru Okamoto
Publisher : BoD – Books on Demand
Page : 150 pages
File Size : 46,7 Mb
Release : 2011-02-10
Category : Science
ISBN : 9789533072951

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Wind Tunnels by Satoru Okamoto Pdf

Although great advances in computational methods have been made in recent years, wind tunnel tests remain essential for obtaining the full range of data required to guide detailed design decisions for various practical engineering problems. This book collects original and innovative research studies on recent applications in wind tunnel tests, exhibiting various investigation directions and providing a bird’s eye view on this broad subject area. It is composed of seven chapters that have been grouped in two major parts. The first part of the book (chapters 1–4) deals with wind tunnel technologies and devices. The second part (chapters 5–7) deals with the latest applications of wind tunnel testing. The text is addressed not only to researchers but also to professional engineers, engineering lecturers, and students seeking to gain better understanding of the current status of wind tunnels. Through its seven chapters, the reader will have an access to a wide range of works related to wind tunnel testing.

Aerodynamic Data Accuracy and Quality

Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium
Publisher : Unknown
Page : 548 pages
File Size : 47,6 Mb
Release : 1988
Category : Aerodynamic load
ISBN : UIUC:30112008623255

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Aerodynamic Data Accuracy and Quality by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium Pdf

The wind tunnel continues to be the main instrument for providing experimental aerodynamic data to the aerospace industry and the aerodynamic researcher for the purpose of load and performance evaluation and for verification of theoretical results. In both cases it is imperative that the user has confidence in the quality of the results, which means that he must have information on what accuracy to attach to the data. The quality of wind tunnel results depends upon both the accuracy of measurements and the imperfections provided by the wind tunnel environment. Great strides have been made in recent years on measurement accuracy and as a rule this need no longer be of much concern if properly attended to. However, imperfections provided by the wind tunnel environment are still with us and these are today the main sources affecting the quality and accuracy of aerodynamic data obtained in a wind tunnel. It was the purpose of this symposium to try to define what accuracy has presently been achieved in modern facilities and to compare these achievements with the actual demands of the user.

Wind Tunnel Designs and Their Diverse Engineering Applications

Author : Noor Ahmed
Publisher : BoD – Books on Demand
Page : 232 pages
File Size : 42,8 Mb
Release : 2013-03-06
Category : Science
ISBN : 9789535110477

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Wind Tunnel Designs and Their Diverse Engineering Applications by Noor Ahmed Pdf

This book is intended to be a valuable addition to students, engineers, scientists, industrialists, consultants and others providing greater insight into wind tunnel designs and their enormous research potential. It is a compilation of works from world experts on subsonic and supersonic wind tunnel designs, applicable to a diverse range of disciplines. The book is organised in two sections. The first section comprises of three chapters on various aspects of stationary and portable subsonic wind tunnel designs, followed by one chapter on supersonic wind tunnel and the final chapter discusses a method to address unsteadiness effects of fan blade rotation. The second section contains four chapters regarding wind tunnel applications across a multitude of engineering fields including civil, mechanical, chemical and environmental engineering.