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Pseudocolor plots of axial velocity in a bundle of seven wire-wrapped pins at
Re=20000, based on pin diameter D. Uniform flow is specified at the inlet
and the flow transitions to turbulence by z ~ 0.5 H/D, where H is the wire pitch.
Simulation performed using 32768 processors with the spectral element code
Nek5000 on the IBM BG/P at the Argonne Leadership Computing Facility. Computing
time provided was through the DOE Office of Science INCITE program.
For more information see the
2008 Scidac article
or follow the links to the
SHARP webpage.
Paul F. Fischer
Contact Information
- Building 221, Room D-248
- Mathematics and Computer Science Division
- Argonne National Laboratory
- 9700 S. Cass Avenue
- Argonne, IL 60439
- Ph: 630-252-6018
- Fx: 630-252-5986
- fischer@mcs.anl.gov
-
Areas of Work
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Fluid Dynamics and Heat Transfer
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Computational fluid dynamics
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Parallel algorithms
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High-performance computing
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Spectral and finite element methods
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Iterative and direct matrix solvers
-
SHARP
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An interesting conduction problem
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Spectral element simulations
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More spectral element simulations
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Schwarz error animator by Zuki Gottlieb
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Turbulence in a Carotid Artery
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Turbulence in a Random Array of Spheres
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Turbulent Flow in a Rod Bundle
Recent Publications
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Petascale Algorithms for Reactor Hydrodynamics,
Paul Fischer, James Lottes, David Pointer, and Andrew Siegel
Download paper .
-
Hybrid Schwarz-Multigrid Methods for the Spectral Element Method:
Extensions to Navier-Stokes,
Paul Fischer and James Lottes
Download paper .
-
A Parareal in Time Semi-implicit Approximation of the
Navier-Stokes Equations,
Paul Fischer, Frederic Hecht, and Yvon Maday
Download paper .
-
Hybrid Multigrid/Schwarz Algorithms for the Spectral Element Method,
J.W. Lottes and P.F. Fischer
Download paper .
- Spectral Element Methods for Transitional Flows,
P.F. Fischer, G.W. Kruse, and F. Loth
Download paper .
- Power Law Behavior of Power Spectra in Low Prandtl
Number Rayleigh-Benard Convection,
M.R. Paul, M.C. Cross, P.F. Fischer, and H.S. Greenside
Download paper .
- Filter-based Stabilization of Spectral Element Methods,
P.F. Fischer and J.S. Mullen
Download paper .
- Terascale Spectral Element Algorithms and Implementations,
H.M. Tufo and P.F. Fischer.
Download paper .
- Numerical Simulation and Immersive Visualization of Hairpin Vortices,
H.M. Tufo, P.F. Fischer, M.E. Papka, and K. Blom
Download paper .
- Fast parallel direct solvers for coarse grid problems, H.M. Tufo and P.F. Fischer.
Download paper .
Last Updated:
June 26, 2008