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Agglomeration-based geometric multigrid solvers for compact discontinuous Galerkin discretizations on unstructured meshes
Here, we present a geometric multigrid solver for the Compact Discontinuous Galerkin method through building a hierarchy of coarser meshes using a simple agglomeration method which handles arbitrary element shapes and dimensions. The method is easily extendable to other discontinuous Galerkin discretizations, including the Local DG method and the Interior Penalty method. We demonstrate excellent solver performance for Poisson's equation, provided a flux formulation is used for the operator coarsening and a suitable switch function chosen for the numerical fluxes.
Development and deployment of a credible unstructured, six-DOF, implicit low-Mach overset simulation tool for wave energy applications
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Pairing Directional Solar Inputs from Ray Tracing to Solar Receiver/Reactor Heat Transfer Models on Unstructured Meshes: Development and Case Studies.
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Shielding Calculations with the Unstructured Mesh Model of the ORNL’s Second Target Station
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Advancing the STS Neutron Moderator Optimization with an Automated Workflow and Unstructured Mesh Modeling
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Code Verification for MCNP Unstructured Mesh Geometry
Abstract not provided.
Aleph: Highly Scalable Unstructured PIC-DSMC Low Temperature Plasma Code.
Abstract not provided.
Demonstrate multi-turbine simulation with hybrid-structured / unstructured-moving-grid software stack running primarily on GPUs and propose improvements for successful KPP-2
The goal of the ExaWind project is to enable predictive simulations of wind farms comprised of many megawatt-scale turbines situated in complex terrain. Predictive simulations will require computational fluid dynamics (CFD) simulations for which the mesh resolves the geometry of the turbines, capturing the thin boundary layers, and captures the rotation and large deflections of blades. Whereas such simulations for a single turbine are arguably petascale class, multi-turbine wind farm simulations will require exascale-class resources.
Geometrically watertight unstructured splines applied to CAD, CAE, CAM, and CAI for a design-through-manufacturing digital thread
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Parallel Graph Partitioning for Unstructured Meshes and Matrices
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A Verified Conforming Transient h-r Unstructured Adaptive Mesh Refinement (cThruAMR) Method for Capillary Hydrodynamics
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Study of Unstructured Mesh Utilization for Large and Complex Models at Los Alamos Neutron Science Center (LANSCE) Case study: Neutron dose rate at FP14 (DANCE instrument)
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Verifying Burnup Calculations on Unstructured Mesh
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