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Unified Lagrangian Formulation For Fluid And Solid Mechanics Fluid Structure Interaction And Coupled Thermal Problems Using The Pfem
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Book Synopsis Unified Lagrangian Formulation for Fluid and Solid Mechanics, Fluid-Structure Interaction and Coupled Thermal Problems Using the PFEM by : Alessandro Franci
Download or read book Unified Lagrangian Formulation for Fluid and Solid Mechanics, Fluid-Structure Interaction and Coupled Thermal Problems Using the PFEM written by Alessandro Franci and published by Springer. This book was released on 2016-10-04 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book treats the derivation and implementation of a unified particle finite element formulation for the solution of fluid and solid mechanics, Fluid-Structure Interaction (FSI) and coupled thermal problems. FSI problems are involved in many engineering branches, from aeronautics to civil and biomedical engineering. The numerical method proposed in this book has been designed to deal with a large part of these. In particular, it is capable of simulating accurately free-surface fluids interacting with structures that may undergo large displacements, suffer from thermo-plastic deformations and even melt. The method accuracy has been successfully verified in several numerical examples. The thesis also contains the application of the proposed numerical strategy for the simulation of a real industrial problem. This thesis, defended at the Universitat Politecnica de Catalunya in 2015, was selected (ex aequo) as the best PhD thesis in numerical methods in Spain for the year 2015 by the Spanish Society of Numerical Methods in Engineering (SEMNI).
Book Synopsis Unified Lagrangian Formulation for Fluid and Solic Mechanics, Fluid-structure Interaction and Coupled Thermal Problems Using the PFEM by : Eugenio Oñate Ibáñez de Navarra
Download or read book Unified Lagrangian Formulation for Fluid and Solic Mechanics, Fluid-structure Interaction and Coupled Thermal Problems Using the PFEM written by Eugenio Oñate Ibáñez de Navarra and published by . This book was released on 2015 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Material Point Method by : Xiong Zhang
Download or read book The Material Point Method written by Xiong Zhang and published by Academic Press. This book was released on 2016-10-26 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Material Point Method: A Continuum-Based Particle Method for Extreme Loading Cases systematically introduces the theory, code design, and application of the material point method, covering subjects such as the spatial and temporal discretization of MPM, frequently-used strength models and equations of state of materials, contact algorithms in MPM, adaptive MPM, the hybrid/coupled material point finite element method, object-oriented programming of MPM, and the application of MPM in impact, explosion, and metal forming. Recent progresses are also stated in this monograph, including improvement of efficiency, memory storage, coupling/combination with the finite element method, the contact algorithm, and their application to problems. Provides a user’s guide and several numerical examples of the MPM3D-F90 code that can be downloaded from a website Presents models that describe different types of material behaviors, with a focus on extreme events. Includes applications of MPM and its extensions in extreme events, such as transient crack propagation, impact/penetration, blast, fluid-structure interaction, and biomechanical responses to extreme loading
Book Synopsis A Lagrangian-Lagrangian Framework for the Simulation of Fluid-solid Interaction Problems with Rigid and Flexible Components by :
Download or read book A Lagrangian-Lagrangian Framework for the Simulation of Fluid-solid Interaction Problems with Rigid and Flexible Components written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is concerned with formulating and validating a Lagrangian-Lagrangian (LL) approach for the simulation of fully resolved Fluid Solid/Structure Interaction (FSI) problems. In the proposed approach, the method of Smoothed Particle Hydrodynamics (SPH) is used to simulate the fluid dynamics in a Lagrangian framework. The solid phase is a general multibody dynamics system composed of a collection of interacting rigid and deformable objects. The motion of flexible objects and arbitrarily-shaped rigid bodies are modeled using an Absolute Nodal Coordinate Formulation (ANCF) and a classical 3D rigid body dynamics framework, respectively. The dynamics of the two phases, fluid and solid, are coupled with the help of Lagrangian markers, referred to as Boundary Condition Enforcing (BCE) markers used to impose no-slip and impenetrability conditions. The BCE markers are distributed in a narrow layer on and below the surface of solid objects as well as confining walls. The solid-solid interaction is known to have a crucial effect on the small-scale behavior of fluid-solid mixtures. The dry encounter of solid surfaces is resolved herein through a penalty based approach. A lubrication force model is proposed to accommodate the wet interaction of the arbitrary 3D geometries. The ensuing fluid-solid interaction forces are mapped into generalized forces on the rigid and flexible bodies and subsequently used to update the dynamics of the solid objects according to the rigid or flexible body motion. The proposed methodology is implemented in a multi-threaded, multi-scale high performance computing approach using Graphics Processing Unit (GPU) and is used to validate several problems involving two- and three-dimensional (2D, 3D) pipe flow of dilute suspensions of macroscopic neutrally buoyant rigid bodies at flow regimes with Reynolds numbers (Re) between 0.1 and 1400. Performance and scaling analysis are provided for simulations scenarios that include one or multiple phases with up to tens of thousands of colloidal rigid and flexible objects. Furthermore, several problems including flow cytometry using microfluidic techniques, flow within porous media, and vibration analysis of immersed flexible objects were approached using the proposed methodology. The software implementation of the algorithm, called Chrono::Fluid, is available as an open-source.
Book Synopsis Computational Fluid-Structure Interaction by : Yuri Bazilevs
Download or read book Computational Fluid-Structure Interaction written by Yuri Bazilevs and published by John Wiley & Sons. This book was released on 2013-01-25 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Fluid-Structure Interaction: Methods and Applications takes the reader from the fundamentals of computational fluid and solid mechanics to the state-of-the-art in computational FSI methods, special FSI techniques, and solution of real-world problems. Leading experts in the field present the material using a unique approach that combines advanced methods, special techniques, and challenging applications. This book begins with the differential equations governing the fluid and solid mechanics, coupling conditions at the fluid–solid interface, and the basics of the finite element method. It continues with the ALE and space–time FSI methods, spatial discretization and time integration strategies for the coupled FSI equations, solution techniques for the fully-discretized coupled equations, and advanced FSI and space–time methods. It ends with special FSI techniques targeting cardiovascular FSI, parachute FSI, and wind-turbine aerodynamics and FSI. Key features: First book to address the state-of-the-art in computational FSI Combines the fundamentals of computational fluid and solid mechanics, the state-of-the-art in FSI methods, and special FSI techniques targeting challenging classes of real-world problems Covers modern computational mechanics techniques, including stabilized, variational multiscale, and space–time methods, isogeometric analysis, and advanced FSI coupling methods Is in full color, with diagrams illustrating the fundamental concepts and advanced methods and with insightful visualization illustrating the complexities of the problems that can be solved with the FSI methods covered in the book. Authors are award winning, leading global experts in computational FSI, who are known for solving some of the most challenging FSI problems Computational Fluid-Structure Interaction: Methods and Applications is a comprehensive reference for researchers and practicing engineers who would like to advance their existing knowledge on these subjects. It is also an ideal text for graduate and senior-level undergraduate courses in computational fluid mechanics and computational FSI.
Book Synopsis Advances in Computational Methods for Fluid-structure Interaction and Coupled Problems by :
Download or read book Advances in Computational Methods for Fluid-structure Interaction and Coupled Problems written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling Fluid-structure Interaction Problems with Coupled DEM-LBM by : Rodrigo Guadarrama Lara
Download or read book Modelling Fluid-structure Interaction Problems with Coupled DEM-LBM written by Rodrigo Guadarrama Lara and published by . This book was released on 2017 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Dynamic Fluid-structure Interaction Calculations with Coupled Finite Element and Finite Volume Programs by :
Download or read book Nonlinear Dynamic Fluid-structure Interaction Calculations with Coupled Finite Element and Finite Volume Programs written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two- and three-dimensional fluid-structure interaction computer programs for the simulation of nonlinear dynamics were developed and applied to a number of problems. The programs were created by coupling Arbitrary Lagrangian-Eulerian finite volume fluid dynamics programs with strictly Lagrangian finite element structural dynamics programs. The resulting coupled programs can use either fully explicit or implicit time integration. The implicit time integration is accomplished by iterations of the fluid dynamics pressure solver and the structural dynamics system solver. The coupled programs have been used to solve problems involving incompressible fluids, membrane and shell elements, compressible multiphase flows, explosions in both air and water, and large displacements. In this paper, we present the approach used for the coupling and describe test problems that verify the two-dimensional programs against an experiment and an analytical linear problem. The experiment involves an explosion underwater near an instrumented thin steel plate. The analytical linear problem is the vibration of an infinite cylinder surrounded by an incompressible fluid to a given radius.
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 A Monolithic Lagrangian Meshfree Method for Fluid-structure Interaction by : Xinyang Liu
Download or read book A Monolithic Lagrangian Meshfree Method for Fluid-structure Interaction written by Xinyang Liu and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is a verification and validation of a monolithic Lagrangian meshfree method. In this thesis, we present a simultaneous solution procedure for fluid-structure interaction (FSI) problems. The governing equations for both fluid and structure domain are formulated under Lagrangian configuration. The Optimal Transportation Meshfree (OTM) method is applied to simulate the FSI problems. A dynamic mesh generation algorithm for open systems is developed to address the limitation of fixed total mass in Lagrangian solutions. By verifying the OTM fluid-structure interaction solution using examples of open flow, we find excellent agreement between simulation results and analytical solutions. Furthermore, we examine the range and scope of the FSI solution in the application of cell-transit test, from which relations between inlet velocities of the flow, Young's modulus, and deformation of the cell have been revealed. Through validation tests, we find a great potential for monolithic Lagrangian meshfree method in use of FSI problems involving complex fluid, highly flexible structures, and arbitrary boundary conditions.
Book Synopsis Numerical Methods for Incompressible Fluid-structure Interaction by : Jimmy Mullaert
Download or read book Numerical Methods for Incompressible Fluid-structure Interaction written by Jimmy Mullaert and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis introduces a class of explicit coupling schemes for the numerical solution of fluid-structure interaction problems involving a viscous incompressible fluid and a general elastic structure (thin-walled or thick-walled, viscoelastic and non-linear).The first fundamental ingredient of these methods is the notion of interface Robin consist encyon the interface. This is an intrinsic (parameter free) feature of the continuous problem, in the case of the coupling with thin-walled solids. For thick-walled structures, we show that an intrinsic interface Robin consistency can also be recovered at the space semi-discrete level, using a lumped-mass approximation in the structure.The second key ingredient of the methods proposed consists in deriving an explicit Robin interface condition for the fluid, which combines extrapolations of the solid velocity and stresses with an implicit treatment of the solid inertia. The former enables explicit coupling,while the latter guarantees added-mass free stability. Stability and error estimates are provided for all the variants (depending on the extrapolations), using energy arguments within a representative linear setting. We show, in particular, that the stability properties do not depend on the thin- or thick-walled nature of the structure. The optimal first-order accuracy obtained in the case of the coupling with thin-walled structuresis, however, not preserved when the structure is thick-walled, due to the spatial non uniformityof the splitting error. The genesis of this problem is the non-uniformity of the discrete viscoelastic operators, related to the thick-walled character of the structure,and not to the mass-lumping approximation. Based on these splitting schemes, new, parameter-free, Robin-Neumann iterative procedures for the partitioned solution of strong coupling are also proposed and analyzed. A comprehensive numerical study, involving linear and non linear models, confims the theoretical findings reported in this thesis.
Book Synopsis Fluid-structure Interaction by : Michael R. Dörfel
Download or read book Fluid-structure Interaction written by Michael R. Dörfel and published by . This book was released on 2011 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Transport Phenomena Modeling by : Gianpaolo Ruocco
Download or read book Introduction to Transport Phenomena Modeling written by Gianpaolo Ruocco and published by Springer. This book was released on 2018-02-12 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook offers an introduction to multiple, interdependent transport phenomena as they occur in various fields of physics and technology like transport of momentum, heat, and matter. These phenomena are found in a number of combined processes in the fields of chemical, food, biomedical, and environmental sciences. The book puts a special emphasis on numerical modeling of both purely diffusive mechanisms and macroscopic transport such as fluid dynamics, heat and mass convection. To favor the applicability of the various concepts, they are presented with a simplicity of exposure, and synthesis has been preferred with respect to completeness. The book includes more than 130 graphs and figures, to facilitate the understanding of the various topics. It also presents many modeling examples throughout the text, to control that the learned material is properly understood. There are some typos in the text. You can see the corrections here: http://www.springer.com/cda/content/document/cda_downloaddocument/ErrataCorrige_v0.pdf?SGWID=0-0-45-1679320-p181107156
Book Synopsis Solution of Fluid-structure Interaction Problems Using a Discontinuous Galerkin Technique by : Anshul Mohnot
Download or read book Solution of Fluid-structure Interaction Problems Using a Discontinuous Galerkin Technique written by Anshul Mohnot and published by . This book was released on 2008 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work aims to address the problem of fluid-structure interaction using a discontinuous Galerkin approach. Starting from the Navier-Stokes equations on a fixed domain, an arbitrary Lagrangian Eulerian (ALE) approach is used to derive the equations for the deforming domain. A geometric conservation law (GCL) is then introduced, which guarantees freestream preservation of the numerical scheme. The space discretization is performed using a discontinuous Galerkin method and time integration is performed using either an explicit four stage Runge-Kutta scheme or an implicit BDF2 scheme. The mapping parameters for the ALE formulation are then obtained using algorithms based on radial basis functions (RBF) or linear elasticity. These strategies are robust and can be applied to bodies with arbitrary shapes and undergoing arbitrary motions. The robustness and accuracy of the ALE scheme coupled with these mapping strategies is then demonstrated by solving some model problems. The ability of the scheme to handle complex flow problems is demonstrated by analyzing the low Reynolds number flow over an oscillating circular cylinder.
Book Synopsis Computational and Experimental Simulations in Engineering by : Hiroshi Okada
Download or read book Computational and Experimental Simulations in Engineering written by Hiroshi Okada and published by Springer Nature. This book was released on 2019-11-16 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the latest advances, innovations, and applications in the field of computational engineering, as presented by leading international researchers and engineers at the 24th International Conference on Computational & Experimental Engineering and Sciences (ICCES), held in Tokyo, Japan on March 25-28, 2019. ICCES covers all aspects of applied sciences and engineering: theoretical, analytical, computational, and experimental studies and solutions of problems in the physical, chemical, biological, mechanical, electrical, and mathematical sciences. As such, the book discusses highly diverse topics, including composites; bioengineering & biomechanics; geotechnical engineering; offshore & arctic engineering; multi-scale & multi-physics fluid engineering; structural integrity & longevity; materials design & simulation; and computer modeling methods in engineering. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.
Book Synopsis Particle-Based Methods by : Eugenio Oñate
Download or read book Particle-Based Methods written by Eugenio Oñate and published by Springer Science & Business Media. This book was released on 2011-02-17 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains 11 chapters written by relevant scientists in the field of particle-based methods and their applications in engineering and applied sciences. The chapters cover most particle-based techniques used in practice including the discrete element method, the smooth particle hydrodynamic method and the particle finite element method. The book will be of interest to researchers and engineers interested in the fundamentals of particle-based methods and their applications.
Book Synopsis Computational Fluid and Solid Mechanics 2003 by : K.J Bathe
Download or read book Computational Fluid and Solid Mechanics 2003 written by K.J Bathe and published by Elsevier. This book was released on 2003-06-02 with total page 2485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together the world's leading researchers and practitioners of computational mechanics, these new volumes meet and build on the eight key challenges for research and development in computational mechanics. Researchers have recently identified eight critical research tasks facing the field of computational mechanics. These tasks have come about because it appears possible to reach a new level of mathematical modelling and numerical solution that will lead to a much deeper understanding of nature and to great improvements in engineering design.The eight tasks are: The automatic solution of mathematical models Effective numerical schemes for fluid flows The development of an effective mesh-free numerical solution method The development of numerical procedures for multiphysics problems The development of numerical procedures for multiscale problems The modelling of uncertainties The analysis of complete life cycles of systems Education - teaching sound engineering and scientific judgement Readers of Computational Fluid and Solid Mechanics 2003 will be able to apply the combined experience of many of the world's leading researchers to their own research needs. Those in academic environments will gain a better insight into the needs and constraints of the industries they are involved with; those in industry will gain a competitive advantage by gaining insight into the cutting edge research being carried out by colleagues in academia. Features Bridges the gap between academic researchers and practitioners in industry Outlines the eight main challenges facing Research and Design in Computational mechanics and offers new insights into the shifting the research agenda Provides a vision of how strong, basic and exciting education at university can be harmonized with life-long learning to obtain maximum value from the new powerful tools of analysis
