Duane L. Rosenberg

My main technical responsibilities in the Turbulence Numerics Team ( TNT ) are as lead on the GASpAR project, and as co-developer of the GHOST: Geophysical High-Order Suite for Turbulence scientific simulation software. In addition to development and validation, my role is to apply these tools to problems of interest to the turbulence and other (e.g., weather, climate, space sciences, and applied math) communities.

Since October 2004, I have been the acting section head of TNT , while Annick Pouquet, the titular section head, has been serving as both acting Associate Director and as Deputy Associate Director in the NCAR Earth & Sun Systems Laboratory .

Selected Publications.

• Optimized Schwarz preconditioning for SEM based magnetohydrodynamics, Amik St-Cyr, Duane Rosenerg, Sang Dong Kim, in press; also on arXiv:0805.0025v1 (2009).
• Dynamically adaptive spectral--element simulations of 2D incompressible Navier--Stokes vortex decays A. Fouriner, D. Rosenberg, and A. Pouquet, Geophys. and Astrophys. Fl. Dyn., 103(2), 245--268 (2009).
• A Comparison of Spectral Element and Finite Difference Methods Using Statically Refined Nonconforming Grids for the MHD Island Coalescence Instability Problem, C. S. Ng, D. Rosenberg, K. Germaschewski, A. Pouquet, and A. Bhattacharjee, in Numerical Modeling of Space Plasma Flows: ASTRONUM-2008, ASP Conference Series, Vol. 406, 255-260 (2009).
• High-order low-storage explicit Runge-Kutta schemes for equations with quadratic nonlinearities, M. E. Brachet, P. D. Mininni, D. L. Rosenberg, A. Pouquet, sumitted to J. Comput. Phys.; also on arXiv:0808.1883 (2008).
• A paradigmatic flow for small-scale magnetohydrodynamics, E. Lee, M.E. Brachet, A. Pouquet, P.D. Mininni, and D. Rosenberg, Phys. Rev. E, 78, 066401 (2008).
• A comparison of spectral element and finite difference methods using statically refined nonconforming grids for the MHD island coalescence instability problem, C. S. Ng, D. Rosenberg, K. Germaschewski, A. Pouquet, and A. Bhattacharjee, Astrophys. J. Suppl., 177(2), 613--625 (2008).
• Adaptive mesh refinement with spectral accuracy for magnetohydrodynamics in two space dimensions, D. Rosenberg, A.Pouquet, & P. D.Mininni. New J. Phys, 9, 304 (2007).
• Spectral-element adaptive refinenement magnetohydrodynamic simulations of the island coalescence instability, D. Rosenberg, A. Pouquet, K. Germaschewski, C. S. Ng, and A. Bhattacharjee, Bull. Am. Phys. Soc., 51(7), 167 (2006).
• Geophysical-astrophysical spectral-element adaptive refinement (GASpAR): Object-oriented h-adaptive fluid dynamics simulation, D. Rosenberg, A.Fournier, P.Fischer, & A.Pouquet. J. Comp. Phys., 215:59--80 (2006).
• Computational challenges for global dynamics of fully developed turbulence in the context of geophysical flows, A. Pouquet, D. Rosenberg, J. Clyne, Springer-Verlag, Statistical Theories and Computational Approaches to Turbulence, Y. Kaneda and T. Gotoh Eds pp. 3-14 (2003).
• Interacting Stellar Wind and Photoionization Models of the SN 1987A Remnant Robert Link, Duane L. Rosenberg, Roger A. Chevalier, Interacting Winds from Massive Stars conference proceeding, arXiv:astro-ph/0107127 (2000).
• Autonomous Formation Flying from the Ground to Flight K.B. Chapman, G.T. Dell, D.L. Rosenberg, Flight Mechanics Symposium Proceedings, NASA/CP-1999-209235 (1999)

Invited Talks.

• A new preconditioning strategy for a spectral-element-based magnetohydrodynamics solver, Frontiers of Geophysical Simulation, NCAR Institute for Mathematics Applied to Geosciences Theme of the Year, August 2009.
• A two level preconditioning strategy for adaptive SEM-based magnetohydrodynamics, IMACS Conference, Athens, Georgia, August 2009.
• Adaptive high-order methods for turbulence, Colorado State University Applied Math, Fort Collins, Colorado, May 2008.
• The GASpAR code for turbulent flows in the geosciences, LACSI Symposium, Santa Fe, New Mexico, May 2004.

Symposia.

• Symposium on Turbulence and Dynamos at Petaspeed, joint symposium with the Univ. of Colorado, Boulder, NCAR, co-organizer with Juri Toomre, JILA , and participant, (2007).

Software Systems.

• GASpAR: Geophysical--astrophysical spectral--element adaptive refinement code J. Comp. Phys.}, 215:59--80 (2006); primary developer/architect.
• FreeFlyer: A Distributed Object (CORBA) Based Satellite Control and Analysis System, a.i. Solutions, Inc. (http://www.ai-solutions.com); primary CORBA developer/architect.
• AutoCon: A Flight--based satellite Control and orbital determination system; developed autonomous satellite position determination system based on GPS Kalman filter/smoother a.i. Solutions, Inc. (http://www.ai-solutions.com); primary developer/architect.
• AVATAR: A versatile algorithm for theoretical astrophysical research, Ph.D. Dissertation, Univ. of North Carolina at Chapel Hill (1995); primary developer/architect.

Still under construction...