Titlebook: High Performance Scientific And Engineering Computing; Proceedings of the 3 Michael Breuer,Franz Durst,Christoph Zenger Conference proceedi

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Adaptive Hybrid Mixed Finite Element Discretization of Instationary Variably Saturated Flow in Poront a hybrid mixed finite element discretization. The efficiency of the algorithm is improved by local time step and grid adaption. The adaption algorithms are based on rigorous error estimators, whose derivation is indicated. Examples elucidate the performance of the algorithm

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CFD Calculations of Flow, Dispersion and Chemical Reactions in Fixed Bed Tubular Reactors Using these simulations can be of great technical and economical interest as the reactor performance and safety during operation are significantly influenced by the local flow behaviour. One particular interesting example are randomly filled tubular fixed bed reactors with small tube-to-particle diameter rat

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Computational Engineering for Wind-Exposed Thin-Walled Structures,are architecture is the geometric model of the structure, from which a finite element mesh for the structure and a finite volume mesh for the fluid are derived. The attention is concentrated to thin-walled structures like membranes and thin shells composed of light and flexible materials. The intera

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Graduated

Numerical Calculation of Turbulent Premixed Flames with an Efficient Turbulent Flame Speed Closure quation for a reaction progress variable.The reaction term of the progress variable is modelled with an efficient turbulent flame speed closure approach. The model is checked by comparing numerical results with experimental data from a turbulent premixed V-shaped flame, where the conditions of the a

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Monte Carlo Simulations of Radiative Heat Transfer with Parallel Computer Architectures,ffectively separates the time-consuming ray-tracing part of the Monte Carlo method from the energy computations required in the iterative solution of the energy equation. The method is applied for a simple combined radiative and conductive heat transfer problem and excellent agreement with the bench

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PET-scan

Symmetry-Preserving Discretization of Turbulent Channel Flow,ifferential operators, i.e. the convective operator is represented by a skew-symmetric matrix and the diffusive operator is approximated by a symmetric, positive-definite matrix. Such a symmetry-preserving discretization of the NavierStokes equations is stable on any grid, and conserves the total ma

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