Shape Optimization For Fluids Using T Splines For Shape Representation And Stabilized Finite Elements For The Fluid Flow Simulations
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Shape Optimization For Fluids Using T Splines For Shape Representation And Stabilized Finite Elements For The Fluid Flow Simulations
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Author : Mike Nicolai
language : de
Publisher:
Release Date : 2012
Shape Optimization For Fluids Using T Splines For Shape Representation And Stabilized Finite Elements For The Fluid Flow Simulations written by Mike Nicolai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Applied Shape Optimization For Fluids
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Author : Bijan Mohammadi
language : en
Publisher: Oxford University Press
Release Date : 2010
Applied Shape Optimization For Fluids written by Bijan Mohammadi and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Mathematics categories.
Contents: PREFACE; ACKNOWLEDGEMENTS; 1. Introduction; 2. Optimal shape design; 3. Partial differential equations for fluids; 4. Some numerical methods for fluids; 5. Sensitivity evaluation and automatic differentiation; 6. Parameterization and implementation issues; 7. Local and global optimization; 8. Incomplete sensitivities; 9. Consistent approximations and approximate gradients; 10. Numerical results on shape optimization; 11. Control of unsteady flows; 12. From airplane design to microfluidic; 13. Toplogical optimization for fluids; 14. Conclusion and perspectives; INDEX.
A Novel Shape Parameterization Approach
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Author : Jamshid A. Samareh
language : en
Publisher:
Release Date : 1999
A Novel Shape Parameterization Approach written by Jamshid A. Samareh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Fluid dynamics categories.
This paper presents a novel parameterization approach for complex shapes suitable for a multidisciplinary design optimization application. The approach consists of two basic concepts: (1) parameterizing the shape perturbations rather than the geometry itself and (2) performing the shape deformation by means of the soft objects animation algorithms used in computer graphics. Because the formulation presented in this paper is independent of grid topology, we can treat computational fluid dynamics and finite element grids in a similar manner. The proposed approach is simple, compact, and efficient. Also, the analytical sensitivity derivatives are easily computed for use in a gradient-based optimization. This algorithm is suitable for low-fidelity (e.g. linear aerodynamics and equivalent laminated plate structures) and high-fidelity analysis tools (e.g. nonlinear computational fluid dynamics and detailed finite element modeling). This paper contains the implementation details of parameterizing for planform, twist, dihedral, thickness, and camber. The results are presented for a multidisciplinary design optimization application consisting of nonlinear computational fluid dynamics, detailed computational structural mechanics, perfomance, and a simple propulsion module.
Applied Computational Fluid Dynamics Techniques
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Author : Rainald Löhner
language : en
Publisher: John Wiley & Sons
Release Date : 2001-08-15
Applied Computational Fluid Dynamics Techniques written by Rainald Löhner and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-08-15 with Mathematics categories.
Computational fluid dynamics (CFD) is concerned with the efficient numerical solution of the partial differential equations that describe fluid dynamics, and CFD techniques are commonly used in many areas of engineering where fluid behavior is a factor. This book covers the range of topics required for a thorough study and understanding of CFD.
Perspectives In Flow Control And Optimization
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Author : Max D. Gunzburger
language : en
Publisher: SIAM
Release Date : 2003-01-01
Perspectives In Flow Control And Optimization written by Max D. Gunzburger and has been published by SIAM this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-01 with Science categories.
Introduces several approaches for solving flow control and optimization problems through the use of modern methods.
Flow Based Optimization Of Products Or Devices
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Author : Nils Tångefjord Basse
language : en
Publisher: MDPI
Release Date : 2020-11-13
Flow Based Optimization Of Products Or Devices written by Nils Tångefjord Basse and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-13 with Technology & Engineering categories.
Flow-based optimization of products and devices is an immature field compared to the corresponding topology optimization based on solid mechanics. However, it is an essential part of component development with both internal and/or external flow. The aim of this book is two-fold: (i) to provide state-of-the-art examples of flow-based optimization and (ii) to present a review of topology optimization for fluid-based problems.
Finite Elements And Fast Iterative Solvers
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Author : Howard C. Elman
language : en
Publisher:
Release Date : 2014
Finite Elements And Fast Iterative Solvers written by Howard C. Elman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Mathematics categories.
This book describes why and how to do Scientific Computing for fundamental models of fluid flow. It contains introduction, motivation, analysis, and algorithms and is closely tied to freely available MATLAB codes that implement the methods described. The focus is on finite element approximation methods and fast iterative solution methods for the consequent linear(ized) systems arising in important problems that model incompressible fluid flow. The problems addressed are the Poisson equation, Convection-Diffusion problem, Stokes problem and Navier-Stokes problem, including new material on time-dependent problems and models of multi-physics. The corresponding iterative algebra based on preconditioned Krylov subspace and multigrid techniques is for symmetric and positive definite, nonsymmetric positive definite, symmetric indefinite and nonsymmetric indefinite matrix systems respectively. For each problem and associated solvers there is a description of how to compute together with theoretical analysis that guides the choice of approaches and describes what happens in practice in the many illustrative numerical results throughout the book (computed with the freely downloadable IFISS software). All of the numerical results should be reproducible by readers who have access to MATLAB and there is considerable scope for experimentation in the "computational laboratory" provided by the software. Developments in the field since the first edition was published have been represented in three new chapters covering optimization with PDE constraints (Chapter 5); solution of unsteady Navier-Stokes equations (Chapter 10); solution of models of buoyancy-driven flow (Chapter 11). Each chapter has many theoretical problems and practical computer exercises that involve the use of the IFISS software. This book is suitable as an introduction to iterative linear solvers or more generally as a model of Scientific Computing at an advanced undergraduate or beginning graduate level.
Finite Element Approximation For Optimal Shape Material And Topology Design
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Author : J. Haslinger
language : en
Publisher: Wiley
Release Date : 1996-08-06
Finite Element Approximation For Optimal Shape Material And Topology Design written by J. Haslinger and has been published by Wiley this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-08-06 with Mathematics categories.
This book addresses the formulation, approximation and numerical solution of optimal shape design problems: from the continuous model through its discretization and approximation results, to sensitivity analysis and numerical realization. Shape optimization of structures is addressed in the first part, using variational inequalities of elliptic type. New results, such as contact shape optimization for bodies made of non-linear material, sensitivity analysis based on isoparametric technique, and analysis of cost functionals related to contact stress distribution are included. The second part presents new concepts of shape optimization based on a fictitious domain approach. Finally, the application of the shape optimization methodology in the material design is discussed. This second edition is a fully revised and up-dated version of Finite Element Method for Optimal Shape Design. Numerous numerical examples illustrate the theoretical results, and industrial applications are given.
Three Dimensional Shape Optimization Of Internal Fluid Flow Systems Using Arbitrary Shape Deformation Coupled With Computational Fluid Dynamics
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Author : Ernest C. Perry
language : en
Publisher:
Release Date : 1999
Three Dimensional Shape Optimization Of Internal Fluid Flow Systems Using Arbitrary Shape Deformation Coupled With Computational Fluid Dynamics written by Ernest C. Perry and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Fluid dynamics categories.
The Intermediate Finite Element Method
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Author : Darrell W. Pepper
language : en
Publisher: CRC Press
Release Date : 1999-03-01
The Intermediate Finite Element Method written by Darrell W. Pepper and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-01 with Science categories.
This book is a follow-up to the introductory text written by the same authors. The primary emphasis on this book is linear and nonlinear partial differential equations with particular concentration on the equations of viscous fluid motion. Each chapter describes a particular application of the finite element method and illustrates the concepts through example problems. A comprehensive appendix lists computer codes for 2-D fluid flow and two 3-D transient codes.