Searched for: subject%3A%22Fluid%255C+Structure%255C+Interaction%22
(1 - 20 of 171)
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Van Brummelen, E.H. (author), Michler, C. (author), De Borst, R. (author)Subiteration forms the basic iterative method for solving the aggregated equations in fluid-structure-interaction problems, in which the fluid and structure equations are solved alternately subject to complementary partitions of the interface conditions. However, this subiteration process can be defective or inadequate, as it is endowed with...report 2005
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Michler, C. (author)Numerical solution methods for fluid-structure interaction are of great importance in many engineering disciplines. The computation of fluid-structure interactions is challenging on account of their free-boundary and multi-physics character. The different length and time scale discretization requirements of the fluid and structure subsystems...doctoral thesis 2005
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Andrianov, A.O.I. (author)Due to the growth of their population, urban development and the corresponding expansion of land use, several countries have decided to build artificial islands in the sea to decrease the pressure on the heavily used land space. The reclamation of the land from the sea is already widely applied, however, there is also an attractive new...doctoral thesis 2005
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Verhoosel, C.V. (author), Gutiérrez, M.A. (author), Hulshoff, S.J. (author)The field of fluid-structure interaction is combined with the field of stochastics to perform a stochastic flutter analysis. Various methods to directly incorporate the effects of uncertainties in the flutter analysis are investigated. The panel problem with a supersonic fluid flowing over it is considered as a testcase. The stochastic moments ...report 2006
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Van Brummelen, E.H. (author), Van der Zee, K.G. (author), De Borst, R. (author)The basic iterative method for solving fluid-structure-interaction problems is a defect-correction process based on a partitioning of the underlying operator into a fluid part and a structural part. In the present work we establish for a prototypical model problem that this defect-correction process yields an excellent smoother for multigrid, on...report 2006
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Van Brummelen, E.H. (author)The necessity to associate two geometrically distinct meshes arises in many engineering applications. Current mesh-association algorithms are generally unsuitable for the high-order geometry representations associated with high-order finite-element discretizations. In the present work we therefore propose a mesh-association method for high-order...report 2006
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Michler, C. (author), Van Brummelen, E.H. (author), In 't Groen, R. (author), De Borst, R. (author)The numerical solution of fluid-structure interactions with the customary subiteration method incurs numerous deficiencies. We validate a recently proposed solution method based on the conjugation of subiteration with a Newton-Krylov method, and demonstrate its superiority and beneficial characteristics.conference paper 2006
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Wüchner, R. (author), Kupzok, A. (author), Bletzinger, K.U. (author)Due to their special load carrying behavior, membrane structures are using the material most efficiently. As a consequence, the realized structures are extremely light but susceptible to flow induced effects. The missing bending stiffness results in a complex coupling of stress state and membrane shape. This necessitates special form finding...conference paper 2006
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De Borst, R. (author), Hulshoff, S.J. (author), Lenz, S. (author), Munts, E.A. (author), Van Brummelen, E.H. (author), Wall, W.A. (author)The basic idea of multiscale methods, namely the decomposition of a problem into a coarse scale and a fine scale, has in an intuitive manner been used in engineering for many decades, if not for centuries. Also in computational science, large-scale problems have been solved, and local data, for instance displacements, forces or velocities, have...conference paper 2006
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Michler, C. (author), Van Brummelen, E.H. (author), In 't Groen, R. (author), De Borst, R. (author)The numerical solution of fluid-structure interactions with the customary subiteration method incurs numerous deficiencies. We validate a recently proposed solution method based on the conjugation of subiteration with a Newton-Krylov method, and demonstrate its superiority and beneficial characteristics.conference paper 2006
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Badia, S. (author), Codina, R. (author)In this paper we suggest some algorithms for the fluid-structure interaction problem stated using a domain decomposition framework. These methods involve stabilized pressure segregation methods for the solution of the fluid problem and fixed point iterative algorithms for the fluid-structure coupling. These coupling algorithms are applied to the...conference paper 2006
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Bijl, H. (author), Van Zuijlen, A.H. (author), Bosscher, S. (author)In this paper we use the multigrid algorithm - commonly used to improve the efficiency of the flow solver - to improve the efficiency of partitioned fluid-structure interaction iterations. Coupling not only the structure with the fine flow mesh, but also with the coarse flow mesh (often present due to the multigrid scheme) leads to a significant...conference paper 2006
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De Borst, R. (author), Hulshoff, S.J. (author), Lenz, S. (author), Munts, E.A. (author), Van Brummelen, E.H. (author), Wall, W.A. (author)The basic idea of multiscale methods, namely the decomposition of a problem into a coarse scale and a fine scale, has in an intuitive manner been used in engineering for many decades, if not for centuries. Also in computational science, large-scale problems have been solved, and local data, for instance displacements, forces or velocities, have...conference paper 2006
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Vierendeels, J.A. (author)The paper describes a new and powerful technique to solve strongly coupled fluid-structure interaction (FSI) problems with partitioned solvers. In order to achieve strong coupling approximate Jacobians of the fluid and structural solvers have to be known. In the proposed method the response to applied displacement and pressure modes are used to...conference paper 2006
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Bijl, H. (author), Van Zuijlen, A.H. (author), Bosscher, S. (author)In this paper we use the multigrid algorithm - commonly used to improve the efficiency of the flow solver - to improve the efficiency of partitioned fluid-structure interaction iterations. Coupling not only the structure with the fine flow mesh, but also with the coarse flow mesh (often present due to the multigrid scheme) leads to a significant...conference paper 2006
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Lüddeke, H. (author), Calvo, J.B. (author), Filimon, A. (author)Substantial requirements for future rocket technologies are the cost-efficient access to orbit as well as the increase in the system reliability. Concerning these requirements the engine is one of the most important parts and a deeper insight into the unsteady phenomena during the start phase of modern launchers is essential. Especially unsteady...conference paper 2006
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Geller, S. (author), Tölke, J. (author), Krafczyk, M. (author), Kollmannsberger, S. (author), Düster, A. (author), Rank, E. (author)In this paper the implementation of the bidirectional coupling approach for the partitioned Lattice Boltzmann (LB) fluid flow and Finite Element (p-FEM) structural mechanics solver will be discussed. Earlier research on a benchmark configuration showed that the explicit coupling algorithm of the two methods was prone to instabilities for some...conference paper 2006
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Bungartz, H.J. (author), Mehl, M. (author)The simulation of multiphysical scenarios has become a more and more important task of scientific computing within the last years. Due to their simplicity compared to monolithic approaches (solving a unique model for the whole scenario), partitioned approaches are widespread. They allow for a reusage of existing and established solvers for the...conference paper 2006
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Bae, Y. (author), Jang, J.Y. (author), Moon, Y.J. (author)In the present study, the effects of fluid-structure interaction (FSI) on the trailingedge noise are numerically investigated, particularly for the cases of wake instability and Karman vortex shedding. The trailing-edge is modelled as a flat plate with an elastic cantilever end and its flow-induced vibration is solved by an eigenmode analysis...conference paper 2006
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Brenk, M. (author), Bungartz, H.J. (author), Neckel, T. (author)Hierarchical Cartesian grids such as those defined by spacetrees have proven to be useful in lots of simulation scenarios in spite of their frequently supposed difficulties concerning the approximation of complicated and changing geometries. One of their most important advantages is the simple, efficient and flexible interface they offer. Thus,...conference paper 2006
Searched for: subject%3A%22Fluid%255C+Structure%255C+Interaction%22
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