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View article: Key Components for Efficient High Re Flow Simulations Around an Airfoil Using LBM
Key Components for Efficient High Re Flow Simulations Around an Airfoil Using LBM Open
Simulations allow investigation of sound generation for flow-induced noise around airfoils. As shown in [1], a good trade-off between computational resources usage and degree
\nof modeling proves indispensable for cost-effective simulation…
View article: HPC performance study of different collision models using the Lattice Boltzmann solver Musubi
HPC performance study of different collision models using the Lattice Boltzmann solver Musubi Open
Over the past decades, the lattice Boltzmann method (LBM) has become increasingly popular thanks to its capabilities in the domain of Large-Eddy Simulations (LES). Different collision schemes have been proposed to extend the scope of appli…
View article: Parallel Machine Learning of Partial Differential Equations
Parallel Machine Learning of Partial Differential Equations Open
In this work, we present a parallel scheme for machine learning of partial differential equations. The scheme is based on the decomposition of the training data corresponding to spatial subdomains, where an individual neural network is ass…
View article: Compressible Flow Simulation with Moving Geometries using the Brinkman Penalization in High-Order Discontinuous Galerkin
Compressible Flow Simulation with Moving Geometries using the Brinkman Penalization in High-Order Discontinuous Galerkin Open
In this work we investigate the Brinkman volume penalization technique in the context of a high-order Discontinous Galerkin method to model moving wall boundaries for compressible fluid flow simulations. High-order approximations are espec…
View article: ExaFSA: Parallel Fluid-Structure-Acoustic Simulation
ExaFSA: Parallel Fluid-Structure-Acoustic Simulation Open
In this paper, we present results of the second phase of the project ExaFSA within the priority program SPP1648—Software for Exascale Computing. Our task was to establish a simulation environment consisting of specialized highly efficient …
View article: Utilization of the Brinkman Penalization to Represent Geometries in a High-Order Discontinuous Galerkin Scheme on Octree Meshes
Utilization of the Brinkman Penalization to Represent Geometries in a High-Order Discontinuous Galerkin Scheme on Octree Meshes Open
We investigate the suitability of the Brinkman penalization method in the context of a high-order discontinuous Galerkin scheme to represent wall boundaries in compressible flow simulations. To evaluate the accuracy of the wall model in th…
View article: Real-World Variability in the Prediction of Intracranial Aneurysm Wall Shear Stress: The 2015 International Aneurysm CFD Challenge
Real-World Variability in the Prediction of Intracranial Aneurysm Wall Shear Stress: The 2015 International Aneurysm CFD Challenge Open
Wide variability exists in the prediction of intracranial aneurysm WSS. While segmentation and CFD solver techniques may be difficult to standardize across groups, our findings suggest that some of the variability in image-based CFD could …
View article: Effiziente Lattice-Boltzmann Simulationen auf großtechnischen HPC-Systemen
Effiziente Lattice-Boltzmann Simulationen auf großtechnischen HPC-Systemen Open
This thesis presents efforts to attain efficient Lattice Boltzmann simulations on large-scale parallel High-Performance Computing systems. This topic is addressed from two different perspectives. One is the reduction of the computational e…
View article: Peer Review #1 of "Generation of high order geometry representations in Octree meshes (v0.1)"
Peer Review #1 of "Generation of high order geometry representations in Octree meshes (v0.1)" Open
We propose a robust method to convert triangulated surface data into polynomial volume data.Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the a…
View article: Peer Review #2 of "Generation of high order geometry representations in Octree meshes (v0.1)"
Peer Review #2 of "Generation of high order geometry representations in Octree meshes (v0.1)" Open
We propose a robust method to convert triangulated surface data into polynomial volume data.Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the a…
View article: Peer Review #2 of "Generation of high order geometry representations in Octree meshes (v0.2)"
Peer Review #2 of "Generation of high order geometry representations in Octree meshes (v0.2)" Open
We propose a robust method to convert triangulated surface data into polynomial volume data.Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the a…
View article: Generation of high order geometry representations in Octree meshes
Generation of high order geometry representations in Octree meshes Open
We propose a robust method to convert triangulated surface data into polynomial volume data. Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the …
View article: Generation of high order geometry representations in octree meshes
Generation of high order geometry representations in octree meshes Open
We propose a robust method to convert triangulated surface data into polynomial volume data. Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the …
View article: Generation of high order geometry representations in octree meshes
Generation of high order geometry representations in octree meshes Open
We propose a robust method to convert triangulated surface data into polynomial volume data. Such polynomial representations are required for high-order partial differential solvers, as low-order surface representations would diminish the …
View article: Generation of high order geometry representations in octree meshes
Generation of high order geometry representations in octree meshes Open
A robust method to obtain high order approximations of material distributions from arbitrary surface descriptions is presented. The method is used in the context of mesh generation with an octree structure and the resulting mesh and materi…
View article: On parallel scalability aspects of strongly coupled partitioned fluid-structure-acoustics interaction
On parallel scalability aspects of strongly coupled partitioned fluid-structure-acoustics interaction Open
Multi-physics simulations, such as fluid-structure-acoustics interaction (FSA), require a high performance computing environment in order to perform the simulation in a reasonable amount of computation time. Currently used coupling methods…