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Rudnyi, E.B. (author), Korvink, J.G. (author)Software MOR for ANSYS has been developed at IMTEK in 2003. It allows us to perform model reduction directly to finite element models developed in ANSYS. The goal of the present paper is to describe progress achieved for the last two years and review our publications with application of MOR for ANSYS to various engineering problems for different...conference paper 2006
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Ito, S. (author), Okuda, H. (author)Computational fluid analysis requires huge amounts of computational resources. However, for the usual developer, parallelization is difficult as it requires special programming skills. In this study, the HPC Middleware is employed, which supports parallelization and optimizations for easily developing parallel code. The parallel efficiency of...conference paper 2006
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Tabata, M. (author)We present energy stable finite element schemes for two-fluid problems with interfacial tension. The interface is captured by solving numerically ordinary differential equations and the interface tension is brought in into the weak formulation of the finite element scheme. Some numerical results of rising bubble problems show the robustness and...conference paper 2006
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John, V. (author), Tambulea, A. (author)Two realizations of finite element variational multiscale (VMS) methods for the simulation of incompressible turbulent flows are studied. The difference between the two approaches consists in the way the spaces for the large scales and the resolved small scales are chosen. The paper addresses issues of the implementation of these methods, the...conference paper 2006
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Bernsen, E. (author), Bokhove, O. (author), Van der Vegt, J.J.W. (author)A mixed continuous and discontinuous Galerkin finite element discretization has been constructed for a generalized vorticity-streamfunction formulation in two spatial dimensions. This formulation consists of a hyperbolic (potential) vorticity equation and a linear elliptic equation for a (transport) streamfunction. The advantages of this finite...conference paper 2006
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Zunic, Z. (author), Hribersek, M. (author), Skerget, L. (author), Ravnik, J. (author)A numerical algorithm for the solution of the velocity-vorticity formulation of Navier-Stokes equations is presented. This formulation results in splitting of fluid flow into its kinematic and kinetic aspect. The Boundary Element Method (BEM) used for the solution of flow kinematics results in an implicit calculation of vorticity values at the...conference paper 2006
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Burman, E. (author)In this note we will first discuss finite element discretizations of the incompressible Navier-Stokes equations with some artificial dissipation added in the form of either a turbulence model or some numerical stabilization term. We will then review some results on interior penalty stabilized finite element methods for incompressible flow. These...conference paper 2006
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Borggaard, J. (author), Iliescu, T. (author)The boundary commutation error in large eddy simulation is studied numerically. It is shown that an accurate representation of the boundary commutation error has an important role in a reliable large eddy simulation of wall bounded flows. The numerical experiments in this paper are conducted for a 2D channel flow.conference paper 2006
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Munts, E.A. (author)The Variational Multiscale (VMS) method has appeared as a promising new approach to the Large Eddy Simulation (LES) of turbulent flows. The key advantage of the VMS approach is that it allows different subgrid-scale (SGS) modeling assumptions to be made at different ranges of the resolved scales. Typically, in the VMS method, SGS modeling is...doctoral thesis 2006
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Van der Zee, K.G. (author), Van Brummelen, E.H. (author)Discontinuous Galerkin (DG) methods are finite element techniques for the solution of partial differential equations. They allow shape functions which are discontinuous across inter-element edges. In principle, DG methods are ideally suited for hp-adaptivity, as they handle nonconforming meshes and varying-in-space polynomial-degree...report 2005
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- Meijers, S.J.H. (author) doctoral thesis 2003
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Van Ostayen, R.A.J. (author)The "classic" solution for the support of a translating lockgate, the wheelonrail support, has relatively high construction as well as inspection and maintenance costs. An alternative support which has previously been developed for use in the Prins WillemAlexander lock is the socalled "hydrosupport", a hydrostatic thrust bearing that slides on...doctoral thesis 2002
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- Schwab, A.L. (author) doctoral thesis 2002
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- De Bondt, A.H. (author) doctoral thesis 1999
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- Rebel, G. (author) doctoral thesis 1998
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Kullaa, J. (author)The tensile constitutive behaviour of fibre-reinforced brittle materials can be extended to two or three dimensions by using the finite element method with crack models. The three approaches in this study include the smeared and discrete crack concepts and a multi-surface plasticity model. The tensile relation represents the crack normal stress...journal article 1997
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- Lager, I.E. (author) doctoral thesis 1996
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- Lodewijks, G. (author) doctoral thesis 1996
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de Koning, A.U. (author), Henriksen, T.K. (author)Probably one of the most challenging problems in fracture mechanics is related to its application to fastener and joints. By nature, not only the quality such as material, manufacturing and mounting processes, of the fasteners are playing a role, but also the stiffness, surface conditions and geometry of the parts are to be considered. Moreover,...report 1996
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- Fawaz, S. (author) report 1996