Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Stabilized Finite Element Methods For Time Dependent Convection Diffusion Equations
Download Stabilized Finite Element Methods For Time Dependent Convection Diffusion Equations full books in PDF, epub, and Kindle. Read online Stabilized Finite Element Methods For Time Dependent Convection Diffusion Equations ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Stabilized Finite Element Methods for Time Dependent Convection-diffusion Equations by : Onur Baysal
Download or read book Stabilized Finite Element Methods for Time Dependent Convection-diffusion Equations written by Onur Baysal and published by . This book was released on 2012 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, enriched finite element methods are presented for both steady and unsteady convection diffusion equations. For the unsteady case, we follow the method of lines approach that consists of first discretizing in space and then use some time integrator to solve the resulting system of ordinary differential equation. Discretization in time is performed by the generalized Euler finite difference scheme, while for the space discretization the streamline upwind Petrov-Galerkin (SUPG), the Residual free bubble (RFB), the more recent multiscale (MS) and specific combination of RFB with MS (MIX) methods are considered. To apply the RFB and the MS methods, the steady local problem, which is as complicated as the original steady equation, should be solved in each element. That requirement makes these methods quite expensive especially for two dimensional problems. In order to overcome that drawback the pseudo approximation techniques, which employ only a few nodes in each element, are used. Next, for the unsteady problem a proper adaptation recipe, including these approximations combined with the generalized Euler time discretization, is described. For piecewise linear finite element discretization on triangular grid, the SUPG method is used. Then we derive an efficient stability parameter by examining the relation of the RFB and the SUPG methods. Stability and convergence analysis of the SUPG method applied to the unsteady problem is obtained by extending the Burman's analysis techniques for the pure convection problem. We also suggest a novel operator splitting strategy for the transport equations with nonlinear reaction term. As a result two subproblems are obtained. One of which we may apply using the SUPG stabilization while the other equation can be solved analytically. Lastly, numerical experiments are presented to illustrate the good performance of the method.
Book Synopsis Finite Element Methods for Flow Problems by : Jean Donea
Download or read book Finite Element Methods for Flow Problems written by Jean Donea and published by John Wiley & Sons. This book was released on 2003-06-02 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Finite-Elemente-Methode, eines der wichtigsten in der Technik verwendeten numerischen Näherungsverfahren, wird hier gründlich und gut verständlich, aber ohne ein Zuviel an mathematischem Formalismus abgehandelt. Insbesondere geht es um die Anwendung der Methode auf Strömungsprobleme. Alle wesentlichen aktuellen Forschungsergebnisse wurden in den Band aufgenommen; viele davon sind bisher nur verstreut in der Originalliteratur zu finden.
Book Synopsis The Mimetic Finite Difference Method for Elliptic Problems by : Lourenco Beirao da Veiga
Download or read book The Mimetic Finite Difference Method for Elliptic Problems written by Lourenco Beirao da Veiga and published by Springer. This book was released on 2014-05-22 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the theoretical and computational aspects of the mimetic finite difference method for a wide class of multidimensional elliptic problems, which includes diffusion, advection-diffusion, Stokes, elasticity, magnetostatics and plate bending problems. The modern mimetic discretization technology developed in part by the Authors allows one to solve these equations on unstructured polygonal, polyhedral and generalized polyhedral meshes. The book provides a practical guide for those scientists and engineers that are interested in the computational properties of the mimetic finite difference method such as the accuracy, stability, robustness, and efficiency. Many examples are provided to help the reader to understand and implement this method. This monograph also provides the essential background material and describes basic mathematical tools required to develop further the mimetic discretization technology and to extend it to various applications.
Book Synopsis On Finite Element Methods for 3D Time-dependent Convection-diffusion-reaction Equations with Small Diffusion by : Volker John
Download or read book On Finite Element Methods for 3D Time-dependent Convection-diffusion-reaction Equations with Small Diffusion written by Volker John and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Moving Mesh Finite Element Method for Time Dependent Convection-Diffusion Problems by : Matthew Maxwell McCoy
Download or read book Moving Mesh Finite Element Method for Time Dependent Convection-Diffusion Problems written by Matthew Maxwell McCoy and published by . This book was released on 2021 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The moving mesh finite element method (MM-FEM) has been a significant force in numerically approximating solutions to differential equations that otherwise exhibit spurious, artificial oscillations. This is especially true for singularly perturbed convection-diffusion problems. In the presence of vanishing molecular diffusivity, MM- FEM may not suffice. The numerical method may exhibit under-diffusive properties and other methods need to be integrated into the classic Galerkin formulation. We implement the so-called streamline upwind Petrov-Galerkin method into the adaptive moving mesh method. In particular, we investigate the computation of so-called enhanced diffusivity for spatiotemporal periodic turbulent flows. We look at the case of Brownian tracer particles, i.e. negligible inertial effects. These types of passive advection-diffusion models are used in atmospheric models with turbulent diffusion, so-called Benard-advection cells, and porous materials, along with many other areas of science and engineering. As molecular diffusivity decreases, interior and boundary layers propagate along the streamlines. Once spurious oscillations are present, they too will propagate along the streamlines. Thus, specialized numerical methods are needed in order to resolve these areas of the domain where large gradients are present. The discrete maximum principle is also investigated for general anisotropic time dependent convection-diffusion equations. We obtain lower and upper bounds for time steps as well as obtain conditions on the mass and stiffness matrices resulting from the SUPG formulation. Our approach depends on two meshes and taking into consideration two diffusion matrices and applying metric intersection.
Book Synopsis Stabilized Finite Element Methods for Convection-diffusion Problems by : Amal Khalid Al-Shanfari
Download or read book Stabilized Finite Element Methods for Convection-diffusion Problems written by Amal Khalid Al-Shanfari and published by . This book was released on 2012 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stabilized Finite Element Methods Applied to Transient Convection-diffusion-reaction and Population Balance Equations by : Naveed Ahmed
Download or read book Stabilized Finite Element Methods Applied to Transient Convection-diffusion-reaction and Population Balance Equations written by Naveed Ahmed and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Stabilized Finite Element Method for Advection-diffusion Equations on Surfaces by : Maksim A. Olšanskij
Download or read book A Stabilized Finite Element Method for Advection-diffusion Equations on Surfaces written by Maksim A. Olšanskij and published by . This book was released on 2012 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Differential Equations:Stationary Partial Differential Equations by : Michel Chipot
Download or read book Handbook of Differential Equations:Stationary Partial Differential Equations written by Michel Chipot and published by Elsevier. This book was released on 2005-08-19 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of self contained, state-of-the-art surveys. The authors have made an effort to achieve readability for mathematicians and scientists from other fields, for this series of handbooks to be a new reference for research, learning and teaching. Partial differential equations represent one of the most rapidly developing topics in mathematics. This is due to their numerous applications in science and engineering on the one hand and to the challenge and beauty of associated mathematical problems on the other. Key features: - Self-contained volume in series covering one of the most rapid developing topics in mathematics.- 7 Chapters, enriched with numerous figures originating from numerical simulations.- Written by well known experts in the field. - Self-contained volume in series covering one of the most rapid developing topics in mathematics.- 7 Chapters, enriched with numerous figures originating from numerical simulations.- Written by well known experts in the field.
Book Synopsis Stabilized Finite Element Methods for Convection-diffusion-reaction, Helmholtz and Stokes Problems by : Prashanth Nadukandi
Download or read book Stabilized Finite Element Methods for Convection-diffusion-reaction, Helmholtz and Stokes Problems written by Prashanth Nadukandi and published by . This book was released on 2012 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Methods for Convection Dominated Flows by : Thomas J. R. Hughes
Download or read book Finite Element Methods for Convection Dominated Flows written by Thomas J. R. Hughes and published by . This book was released on 1979 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stabilized Finite Element Methods for Convection-diffusion-reaction, Helmholtz and Stokes Problems by : Prashanth Nadukandi
Download or read book Stabilized Finite Element Methods for Convection-diffusion-reaction, Helmholtz and Stokes Problems written by Prashanth Nadukandi and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Assessment of Solvers for Algebraically Stabilized Discretizations of Convection-diffusion-reaction Equations by : Abhinav Jha
Download or read book An Assessment of Solvers for Algebraically Stabilized Discretizations of Convection-diffusion-reaction Equations written by Abhinav Jha and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We consider flux-corrected finite element discretizations of 3D convection-dominated transport problems and assess the computational efficiency of algorithms based on such approximations. The methods under investigation include flux-corrected transport schemes and monolithic limiters. We discretize in space using a continuous Galerkin method and P1 or Q1 finite elements. Time integration is performed using the Crank- Nicolson method or an explicit strong stability preserving Runge-Kutta method. Nonlinear systems are solved using a fixed-point iteration method, which requires solution of large linear systems at each iteration or time step. The great variety of options in the choice of discretization methods and solver components calls for a dedicated comparative study of existing approaches. To perform such a study, we define new 3D test problems for time dependent and stationary convection-diffusion-reaction equations. The results of our numerical experiments illustrate how the limiting technique, time discretization and solver impact on the overall performance.
Book Synopsis Stabilized Finite Element Methods for Convection-diffusion-reaction, Hemholtz and Stokes Problems by : Prashanth Nadukandi
Download or read book Stabilized Finite Element Methods for Convection-diffusion-reaction, Hemholtz and Stokes Problems written by Prashanth Nadukandi and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Incompressible Flow and the Finite Element Method, Volume 1 by : P. M. Gresho
Download or read book Incompressible Flow and the Finite Element Method, Volume 1 written by P. M. Gresho and published by Wiley. This book was released on 2000-06-22 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive two-volume reference covers the application of the finite element method to incompressible flows in fluid mechanics, addressing the theoretical background and the development of appropriate numerical methods applied to their solution. Volume One provides extensive coverage of the prototypical fluid mechanics equation: the advection-diffusion equation. For both this equation and the equations of principal interest - the Navier-Stokes equations (covered in detail in Volume Two) - a discussion of both the continuous and discrete equations is presented, as well as explanations of how to properly march the time-dependent equations using smart implicit methods. Boundary and initial conditions, so important in applications, are carefully described and discussed, including well-posedness. The important role played by the pressure, so confusing in the past, is carefully explained. The book explains and emphasizes consistency in six areas: * consistent mass matrix * consistent pressure Poisson equation * consistent penalty methods * consistent normal direction * consistent heat flux * consistent forces Fully indexed and referenced, this book is an essential reference tool for all researchers, students and applied scientists in incompressible fluid mechanics.
Book Synopsis Advanced Finite Element Methods with Applications by : Thomas Apel
Download or read book Advanced Finite Element Methods with Applications written by Thomas Apel and published by Springer. This book was released on 2019-06-28 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite element methods are the most popular methods for solving partial differential equations numerically, and despite having a history of more than 50 years, there is still active research on their analysis, application and extension. This book features overview papers and original research articles from participants of the 30th Chemnitz Finite Element Symposium, which itself has a 40-year history. Covering topics including numerical methods for equations with fractional partial derivatives; isogeometric analysis and other novel discretization methods, like space-time finite elements and boundary elements; analysis of a posteriori error estimates and adaptive methods; enhancement of efficient solvers of the resulting systems of equations, discretization methods for partial differential equations on surfaces; and methods adapted to applications in solid and fluid mechanics, it offers readers insights into the latest results.
Book Synopsis Adaptive Streamline Diffusion Finite Element Methods for Time Dependent Convection Diffusion Problems by : Kenneth Eriksson
Download or read book Adaptive Streamline Diffusion Finite Element Methods for Time Dependent Convection Diffusion Problems written by Kenneth Eriksson and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
