66 citations · 80 across the 7 of their papers we have counts for
8 papers
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…
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…
nekCRF: A next generation high-order reactive low Mach flow solver for direct numerical simulations
Stefan Kerkemeier, Christos E. Frouzakis, Ananias G. Tomboulides +2
Exascale computing enables high-fidelity simulations of chemically reactive flows in practical geometries and conditions, and paves the way for valuable insights that can optimize…
Towards Exascale for Wind Energy Simulations
Misun Min, Michael Brazell, Ananias Tomboulides +3
We examine large-eddy-simulation modeling approaches and computational performance of two open-source computational fluid dynamics codes for the simulation of atmospheric boundary…
GPU Algorithms for Efficient Exascale Discretizations
Ahmad Abdelfattah, Valeria Barra, Natalie Beams +24
In this paper we describe the research and development activities in the Center for Efficient Exascale Discretization within the US Exascale Computing Project, targeting state-of-t…
Efficient Exascale Discretizations: High-Order Finite Element Methods
Tzanio Kolev, Paul Fischer, Misun Min +27
Efficient exploitation of exascale architectures requires rethinking of the numerical algorithms used in many large-scale applications. These architectures favor algorithms that ex…
NekRS, a GPU-Accelerated Spectral Element Navier-Stokes Solver
Paul Fischer, Stefan Kerkemeier, Misun Min +8
The development of NekRS, a GPU-oriented thermal-fluids simulation code based on the spectral element method (SEM) is described. For performance portability, the code is based on t…
Symmetry Breaking, Anomalous Scaling and Large-Scale Flow Generation in a Convection Cell
Ananias G. Tomboulides, Victor Yakhot
We consider a convection process in a thin loop. At a first transition leading to the generation of corner vortices is observed. At higher a coherent lar…