activity
20022023
most citedOn the Strong Scaling of the Spectral Element Solver Nek5000 on Petascale Systems

68 citations · 401 across the 18 of their papers we have counts for

collaborators

18 papers

physics.flu-dyn2023

A Preliminary Fluid-Structure Coupling of NekRS and MOOSE via Cardinal

A. Chaube, A. J. Novak, H. Yuan +4

Fluid-Structure Interaction (FSI) is a significant phenomenon in most nuclear reactors, causing effects such as Flow-Induced Vibration (FIV) and thermally-driven Core-Radial Expans…

cs.DC2021★ 66 cited

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…

cs.CE2021★ 8 cited

All-Hex Meshing Strategies For Densely Packed Spheres

Yu-Hsiang Lan, Paul Fischer, Elia Merzari +1

We develop an all-hex meshing strategy for the interstitial space in beds of densely packed spheres that is tailored to turbulent flow simulations based on the spectral element met…

cs.PF2021★ 2 cited

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…

physics.flu-dyn2020★ 9 cited

Turbulence and heat transfer on a rotating, heated half soap bubble

X. Q. HE, A. D. Bragg, Y. L. Xiong +1

We use Direct Numerical Simulations to study the two-dimensional flow of a rotating, half soap bubble that is heated at its equator. The heating produces buoyancy and rotation gene…

math.NA2020★ 1 cited

Stability analysis of a singlerate and multirate predictor-corrector scheme for overlapping grids

Ketan Mittal, Som Dutta, Paul Fischer

We use matrix stability analysis for a singlerate and multirate predictor-corrector scheme (PC) used to solve the incompressible Navier-Stokes equations (INSE) in overlapping grids…