Abaqus Fluid Structure Interaction Graz-Austria

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   T HEME A Fluid Structure Interaction Arch Dam  –   Reservoir at Seismic loading Formulator: Graz University of Technology Institute of Hydraulic Engineering and Water Resources Management  1.1 Focus of this benchmark example The focus of this benchmark is to carry out the Dynamic Fluid Structure Interaction for a large arch dam. Every participant may choose his own order of details in modeling. The main goal of this example is the application of different approaches like:    Added mass technique ( Westergaard, Zangar,…)      Acoustic Elements (compressible, incompressible)    Fluid Elements (compressible, incompressible) Further on, the usage of different Boundary Conditions is possible for:    Reservoir - Foundation - Reflecting (on the bottom and the sides) - Non-reflecting (at the end of the reservoir) The modeling of the block joint opening  –   due to tensile stresses and nonlinear effects - is not focus of this benchmark example. However, to carry out this analysis in the time domain will provide the opportunity for further non-linear analyses. 1.2 General basic assumptions The following general basic assumptions and boundary conditions for the investigations should be used:    Same spatial discretization (Model/Mesh) of the Structure, Foundation and Reservoir    Same Material Parameters    Acceleration-Time-History in X-,Y-,Z-Direction    Reservoir is infinite in length (non-reflecting)    Rayleigh Damping    Results to be compared - Visualization Based on these basic assumptions and results gained the contributors are encouraged to intensify and focus their effort to achieve results with higher profound physical justification and explain the differences. (E.g.: different spatial discretization, more appropriate modeling of the interaction; different length of the reservoir; need for nonlinear effects). An interpretation of the evaluated results from an engineering point of view should be given.  2. Modell and Geometry An Arch Dam, Foundation and Reservoir Model layout for the benchmark has been generated and is available for downloading. 2.1 Arch Dam Model    Symmetric Geometry    Total Height: 220 Meters    Valley width (crest): ~ 430 Meters    Valley width (bottom): ~ 80 Meters 2.1.1 Arch Dam Geometry The Arch Dam Geometry has been generated with the Program “Arch Dam Design”, which was developed as part of the Master-Thesis by DI Manuel Pagitsch. Arch Dam Model Plan View    View from the upstream Main Section 2.2 Foundation Model Symmetry is used for the foundation too.    Height: 500 Meters    Length: 1000 Meters    Width 1000 Meters
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