5 citations · 8 across the 7 of their papers we have counts for
7 papers
Super-Resolution Initialization of High-Fidelity CFD Simulations for Pebble-Bed Reactors
Guilherme Gottems, Vasil Ivakimov, Luiz Aldeia Machado +13
High-order CFD simulations provide detailed resolution of the heterogeneous interstitial flow in pebble-bed reactors, but their computational cost is high, especially during the in…
Deciphering boundary layer dynamics in high-Rayleigh-number convection using 3360 GPUs and a high-scaling in-situ workflow
Mathis Bode, Damian Alvarez, Paul Fischer +10
Turbulent heat and momentum transfer processes due to thermal convection cover many scales and are of great importance for several natural and technical flows. One consequence is t…
DDES Study of Confined and Unconfined NACA Wing Sections Using Spectral Elements
Vishal Kumar, Ananias Tomboulides, Paul Fischer +1
We develop hybrid RANS-LES strategies within the spectral element code Nek5000 based on the class of turbulence models. We chose airfoil sections at small flight configuratio…
Spectral Element Simulation of Liquid Metal Magnetohydrodynamics
Yichen Guo, Paul Fischer, Misun Min
A spectral-element-based formulation of incompressible MHD is presented in the context of the open-source fluid-thermal code, Nek5000/RS. The formulation supports magnetic fields i…
Modeling Turbulence in the Atmospheric Boundary Layer with Spectral Element and Finite Volume Methods
Ananias Tomboulides Matthew Churchfield, Paul Fischer, Michael Sprague +1
We present large-eddy-simulation (LES) modeling approaches for the simulation of atmospheric boundary layer turbulence that are of direct relevance to wind energy production. In th…
Exascale Simulations of Fusion and Fission Systems
Misun Min, Yu-Hsiang Lan, Paul Fischer +11
We discuss pioneering heat and fluid flow simulations of fusion and fission energy systems with NekRS on exascale computing facilities, including Frontier and Aurora. The Argonne-b…
Scaling Computational Fluid Dynamics: In Situ Visualization of NekRS using SENSEI
Victor A. Mateevitsi, Mathis Bode, Nicola Ferrier +9
In the realm of Computational Fluid Dynamics (CFD), the demand for memory and computation resources is extreme, necessitating the use of leadership-scale computing platforms for pr…