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Author: Gulraiz Ahmed Publisher: GRIN Verlag ISBN: 3656230463 Category : Technology & Engineering Languages : en Pages : 91
Book Description
Master's Thesis from the year 2008 in the subject Engineering - Aerospace Technology, grade: A, University of Southampton, course: Computational Aerodynamics, language: English, abstract: Wing-in-ground effect (WIG) vehicles offer an exciting capability to fill the enormous void between speed of an aircraft and the payload capacity of a ship. WIG vehicles would be able to move cargo and passengers faster than a ship and more economical than an aircraft. Ground effect is a phenomenon that occurs on all wings flying close to the ground or a surface. The aim of this project is to investigate the behavior of wings (NACA/DHMTU series) in ground effect (on a fixed/variable terrain) using Fluent CFD package. The NACA 0012 and DHMTU series used in this project are designed specifically to fly in close proximity to the ground. The performance of the NACA/ DHMTU airfoils is examined for the lift and the drag coefficients at different altitudes with varying angle of attack. The results are compared to experimental data that is available to assess the accuracy of the CFD simulation.
Author: Gulraiz Ahmed Publisher: GRIN Verlag ISBN: 3656230463 Category : Technology & Engineering Languages : en Pages : 91
Book Description
Master's Thesis from the year 2008 in the subject Engineering - Aerospace Technology, grade: A, University of Southampton, course: Computational Aerodynamics, language: English, abstract: Wing-in-ground effect (WIG) vehicles offer an exciting capability to fill the enormous void between speed of an aircraft and the payload capacity of a ship. WIG vehicles would be able to move cargo and passengers faster than a ship and more economical than an aircraft. Ground effect is a phenomenon that occurs on all wings flying close to the ground or a surface. The aim of this project is to investigate the behavior of wings (NACA/DHMTU series) in ground effect (on a fixed/variable terrain) using Fluent CFD package. The NACA 0012 and DHMTU series used in this project are designed specifically to fly in close proximity to the ground. The performance of the NACA/ DHMTU airfoils is examined for the lift and the drag coefficients at different altitudes with varying angle of attack. The results are compared to experimental data that is available to assess the accuracy of the CFD simulation.
Author: Kirill V. Rozhdestvensky Publisher: Springer Science & Business Media ISBN: 3662042401 Category : Technology & Engineering Languages : en Pages : 358
Book Description
This book is dedicated to the memory of a distinguished Russian engineer, Rostislav E. Alexeyev, who was the first in the world to develop the largest ground effect machine - Ekranoplan. One of Alexeyev's design concepts with the aerodynamic configuration of a jlying wing can be seen on the front page. The book presents a description of a mathematical model of flow past a lifting system, performing steady and unsteady motions in close proximity to the underlying solid surface (ground). This case is interesting for practical purposes because both the aerodynamic and the economic efficiency of the system near the ground are most pronounced. Use of the method of matched asymptotic expansions enables closed form solutions for the aerodynamic characteristics of the wings-in-ground effect. These can be used for design, identification, and processing of experimental data in the course of developing ground effect vehicles. The term extreme ground effect, widely used through out the book, is associated with very small relative ground clearances of the order of 10% or less. The theory of a lifting surface, moving in immediate proximity to the ground, represents one of the few limiting cases that can be treated analytically. The author would like to acknowledge that this work has been influenced by the ideas of Professor Sheila E. Widnall, who was the first to apply the matched asymptotics techniques to treat lifting flows with the ground effect. Saint Petersburg, Russia February 2000 Kirill V. Rozhdestvensky Contents 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Author: Jiyuan Tu Publisher: Butterworth-Heinemann ISBN: 0080982433 Category : Computers Languages : en Pages : 458
Book Description
An introduction to CFD fundamentals and using commercial CFD software to solve engineering problems, designed for the wide variety of engineering students new to CFD, and for practicing engineers learning CFD for the first time. Combining an appropriate level of mathematical background, worked examples, computer screen shots, and step by step processes, this book walks the reader through modeling and computing, as well as interpreting CFD results. The first book in the field aimed at CFD users rather than developers. New to this edition: A more comprehensive coverage of CFD techniques including discretisation via finite element and spectral element as well as finite difference and finite volume methods and multigrid method. Coverage of different approaches to CFD grid generation in order to closely match how CFD meshing is being used in industry. Additional coverage of high-pressure fluid dynamics and meshless approach to provide a broader overview of the application areas where CFD can be used. 20% new content .
Author: Grigorios Dimitriadis Publisher: John Wiley & Sons ISBN: 1118756460 Category : Technology & Engineering Languages : en Pages : 944
Book Description
Introduction to Nonlinear Aeroelasticity Introduces the latest developments and technologies in the area of nonlinear aeroelasticity Nonlinear aeroelasticity has become an increasingly popular research area in recent years. There have been many driving forces behind this development, increasingly flexible structures, nonlinear control laws, materials with nonlinear characteristics and so on. Introduction to Nonlinear Aeroelasticity covers the theoretical basics in nonlinear aeroelasticity and applies the theory to practical problems. As nonlinear aeroelasticity is a combined topic, necessitating expertise from different areas, the book introduces methodologies from a variety of disciplines such as nonlinear dynamics, bifurcation analysis, unsteady aerodynamics, non-smooth systems and others. The emphasis throughout is on the practical application of the theories and methods, so as to enable the reader to apply their newly acquired knowledge Key features: Covers the major topics in nonlinear aeroelasticity, from the galloping of cables to supersonic panel flutter Discusses nonlinear dynamics, bifurcation analysis, numerical continuation, unsteady aerodynamics and non-smooth systems Considers the practical application of the theories and methods Covers nonlinear dynamics, bifurcation analysis and numerical methods Accompanied by a website hosting Matlab code Introduction to Nonlinear Aeroelasticity is a comprehensive reference for researchers and workers in industry and is also a useful introduction to the subject for graduate and undergraduate students across engineering disciplines.
Author: Santhakumar Mohan Publisher: Springer Nature ISBN: 9811598096 Category : Technology & Engineering Languages : en Pages : 909
Book Description
This book comprises the select proceedings of the International Conference on Materials, Design and Manufacturing for Sustainable Environment (ICMDMSE 2020). The primary focus is on emerging materials and cutting-edge manufacturing technologies for sustainable environment. The book covers a wide range of topics such as advanced materials, vibration, tribology, finite element method (FEM), heat transfer, fluid mechanics, energy engineering, additive manufacturing, robotics and automation, automobile engineering, industry 4.0, MEMS and nanotechnology, optimization techniques, condition monitoring, and new paradigms in technology management. Contents of this book will be useful to students, researchers, and practitioners alike.
Author: Somnath Roy Publisher: Springer Nature ISBN: 9811539405 Category : Technology & Engineering Languages : en Pages : 441
Book Description
This volume presents the emerging applications of immersed boundary (IB) methods in computational mechanics and complex CFD calculations. It discusses formulations of different IB implementations and also demonstrates applications of these methods in a wide range of problems. It will be of special value to researchers and engineers as well as graduate students working on immersed boundary methods, specifically on recent developments and applications. The book can also be used as a supplementary textbook in advanced courses in computational fluid dynamics.
Author: Russell M. Cummings Publisher: Cambridge University Press ISBN: 1316240290 Category : Technology & Engineering Languages : en Pages : 893
Book Description
This computational aerodynamics textbook is written at the undergraduate level, based on years of teaching focused on developing the engineering skills required to become an intelligent user of aerodynamic codes. This is done by taking advantage of CA codes that are now available and doing projects to learn the basic numerical and aerodynamic concepts required. This book includes a number of unique features to make studying computational aerodynamics more enjoyable. These include: • The computer programs used in the book's projects are all open source and accessible to students and practicing engineers alike on the book's website, www.cambridge.org/aerodynamics. The site includes access to images, movies, programs, and more • The computational aerodynamics concepts are given relevance by CA Concept Boxes integrated into the chapters to provide realistic asides to the concepts • Readers can see fluids in motion with the Flow Visualization Boxes carefully integrated into the text.
Author: Wolfgang Rodi Publisher: Elsevier ISBN: 0080530958 Category : Science Languages : en Pages : 1011
Book Description
Proceedings of the world renowned ERCOFTAC (International Symposium on Engineering Turbulence Modelling and Measurements).The proceedings include papers dealing with the following areas of turbulence:·Eddy-viscosity and second-order RANS models ·Direct and large-eddy simulations and deductions for conventional modelling ·Measurement and visualization techniques, experimental studies ·Turbulence control ·Transition and effects of curvature, rotation and buoyancy on turbulence ·Aero-acoustics ·Heat and mass transfer and chemically reacting flows ·Compressible flows, shock phenomena ·Two-phase flows ·Applications in aerospace engineering, turbomachinery and reciprocating engines, industrial aerodynamics and wind engineering, and selected chemical engineering problems Turbulence remains one of the key issues in tackling engineering flow problems. These problems are solved more and more by CFD analysis, the reliability of which depends strongly on the performance of the turbulence models employed. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulent momentum, heat and mass transfer. For the understanding of turbulence phenomena, experiments are indispensable, but they are equally important for providing data for the development and testing of turbulence models and hence for CFD software validation. As in other fields of Science, in the rapidly developing discipline of turbulence, swift progress can be achieved only by keeping up to date with recent advances all over the world and by exchanging ideas with colleagues active in related fields.
Author: Gulraiz Ahmed
Author: Gulraiz Ahmed
Author: Kirill V. Rozhdestvensky
Author: Jiyuan Tu
Author: Grigorios Dimitriadis
Author: 
Author: Santhakumar Mohan
Author: Somnath Roy
Author: 
Author: Russell M. Cummings
Author: Wolfgang Rodi