Hans-Joachim Bungartz, Michael Schäfer's Fluid-Structure Interaction: Modelling, Simulation, PDF

By Hans-Joachim Bungartz, Michael Schäfer

ISBN-10: 3540345957

ISBN-13: 9783540345954

This quantity within the sequence Lecture Notes in Computational technological know-how and Engineering offers a set of papers provided on the foreign Workshop on FSI, held in October 2005 in Hohenwart and arranged via DFG's learn Unit 493 "FSI: Modeling, Simulation, and Optimization". The papers tackle partitioned and monolithic coupling methods, methodical matters and purposes, and talk about FSI from the mathematical, informatics, and engineering issues of view.

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Extra info for Fluid-Structure Interaction: Modelling, Simulation, Optimisation (Lecture Notes in Computational Science and Engineering)

Sample text

Overview of the relation between oomph-lib’s fundamental objects. 1 The Data Structure The Fundamental Objects Figure 2 presents an overview of the relation between oomph-lib’s fundamental objects: Data, Node, Element, Mesh and Problem. , M ) that represent the solution to the discretised problem. These values are either prescribed (“pinned”) by boundary conditions, or are unknowns. Each of the N unknown values is associated with a unique global (equation) number in the range 1 to N . oomph-lib’s Data object provides storage for values and their global equation numbers.

Their full specification is delayed until the next and final level of the element hierarchy. Templating is again used to implement equations in dimension-independent form, wherever possible. Table 1 provides a partial list of currently implemented equation classes. oomph-lib’s documentation provides instructions and numerous “worked examples” that illustrate how to create additional equation classes. Finally, fully functional elements are constructed via multiple inheritance, by combining a specific geometric FiniteElement with a specific equation class.

13. II. Prescribed wall motion – MacroElement-based node update We start by analysing the 2D internal fluid flows generated by the nonaxisymmetric deflections of a circular ring performing a prescribed highfrequency oscillation that resembles the in vacuo oscillations of an elastic ring in its N -th fundamental mode. If we denote the amplitude of the oscillations by ǫ, the time-dependent wall shape, parametrised by the Lagrangian oomph-lib – An Object-Oriented Multi-Physics Finite-Element Library 43 X Y Z (unsteady) x2 ε = ξ Rctrl x1 X Y Z + (steady) (unsteady) Fig.

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Fluid-Structure Interaction: Modelling, Simulation, Optimisation (Lecture Notes in Computational Science and Engineering) by Hans-Joachim Bungartz, Michael Schäfer


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