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Jonathan Pietarila Graham

CNLS Postdoctoral Research Associate
CNLS/T-3

(Magneto-)Fluid Turbulence

Jonathan Pietarila Graham

Office: TA-3, Bldg 1690, Room 136
Mail Stop: B258
Phone: (505) 665-1830
Fax: (505) 665-2659

jgraham@lanl.gov
home page

Research highlight
     Educational Background/Employment:
    • B.S. (1993) Physics with Honors, Oklahoma State University
    • M.S. (2005) Applied Mathematics, University of Colorado
    • Ph.D. (2007) Applied Mathematics, University of Colorado
    • Employment:
      • 1999-2004, Associate Scientist, High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO USA
      • 2004-2007, Graduate Research Assistant, Institute for Mathematics Applied to Geosciences, National Center for Atmospheric Research, Boulder, CO USA
      • 2007-2010, Postdoctoral Fellow, Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany
      • 2010, Postdoctoral Fellow, Department of Applied Mathematics & Statistics, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD USA
      • 2011, CNLS Postdoctoral Research Associate, Los Alamos National Laboratory, Los Alamos, NM USA
    • Professional Training:
      • October 2007 Minicourse on Turbulence: Concepts & Methods, Wolfgang Pauli Institute, Vienna, Austria
      • February 2008 Minicourse on Conceptual Aspects of Turbulence: Mean Fields vs. Fluctuations, Wolfgang Pauli Institute, Vienna, Austria
      • March 2008 SOLAIRE PostGraduate School, Computational Methods in Astrophys., Bochum, Germany

    Research Interests:

      High performance computational fluid dynamics (HPC, CFD) for compressible and incompressible, hydrodynamic and magnetohydrodynamic turbulent flows. The use of subgrid modeling (regularizations, LES) to extend the range of physical parameters probed by large, parallel simulations (especially for flows with strong, impulsive events) as well as new models and smoothness properties (computability).

    Selected Recent Publications:

    1. Jonathan Pietarila Graham, Sanja Danilovic, and Manfred Schüssler, Turbulent magnetic fields in the quiet Sun: implications of Hinode observations and small-scale dynamo simulations, ApJ. 693, 1728-1735, 2009. ADS
    2. Norton, A. A., J. Pietarila Graham, R. K. Ulrich, J. Schou, S. Tomczyk, Y. Liu, B. W. Lites, A. López Ariste, R. I. Bush, H. Socas-Navarro, and P. H. Scherrer, Spectral Line Selection for HMI: A Comparison of FeI 6173 Å and NiI 6768 Å, Solar Physics. 239, 69-91, 2006. ADS
    3. Jonathan Pietarila Graham, Darryl D. Holm, Pablo D. Mininni, and Annick Pouquet, Highly turbulent solutions of the Lagrangian-averaged Navier-Stokes α model and their large-eddy-simulation potential, Phys. Rev. E. 76, 056310, 2007. ADS
    4. J. Pietarila Graham, D. D. Holm, P. Mininni, and A. Pouquet, Three regularization models of the Navier-Stokes equations, Phys. Fluids. 20, 035107, 2008. ADS
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