Published papers (some online) on Gyrofluid Turbulence Simulations, etc.
Click the above for a much longer list of published papers. Below is a list of some recent unpublished talks and posters (incomplete).
Recent Review talk: "Gyrokinetic Theory and Simulations of Experiments" (pdf or powerpoint), G. W. Hammett, review talk 2007 APS Division of Plasma Physics Annual Meeting, Orlando, Nov. 12-16.
Other talks:
"Introduction to Plasma Physics" (pdf), (powerpoint), G. W. Hammett, Lecture at the one week introductory course for the National Undergraduate Fellowship Program in Plasma Physics and Fusion Engineering, Princeton Plasmas Physics Laboratory, June 9-13, 2008.
"A Symplectic Iterative Semi-Implicit Algorithm and Its Relation to Preconditioned Fully Implicit Algorithms", G. W. Hammett and N. F. Loureiro, session on Parallel Implicit Approaches in Magnetic Fusion Applications at the SIAM Conference on Parallel Processing for Scientific Computing,, Atlanta, March 12-14, 2008. (Had to cancel due to scheduling conflict. For some of the content, see Loureiro & Hammett, JCP 2008 paper.)
"Status of Research on Fusion Energy and Plasma Turbulence", G. W. Hammett, University of Ottawa Physics Seminar, Nov. 29, 2007.
"Gyrokinetic Theory and Simulations of Experiments" (pdf or powerpoint), G. W. Hammett, review talk 2007 APS Division of Plasma Physics Annual Meeting, Orlando, Nov. 12-16. abstract.
"The Magneto-Rotational Instability (MRI) beyond MHD,", or "Angular Momentum Transport in Astrophysical Accretion Flows," G.W. Hammett, Center for Magnetic Self-Organization in Laboratory and Astrophyscal Plasmas (CMSO), General Meeting, June 4-6, U. New Hampshire.
"Progress in 5-Dimensional Plasma Turbulence Simulations of Fusion Energy Devices", G.W. Hammett, invited talk, 2007 APS April Meeting, Jacksonville, Florida. abstract.
"Angular Momentum Transport in Astrophysical Accretion Flows", G.W. Hammett on behalf of Eliot Quataert and with P. Sharma and J.M. Stone. invited talk, 2007 APS April Meeting, Jacksonville, Florida. abstract.
"Advances in Understanding Plasma Turbulence and the Quest for Fusion Energy," Physics Department Seminar, Univ. of Florida, Feb. 1, 2007.
"Plasma Shaping and ExB Shear Effects on ITG Turbulence," G.W. Hammett and E.A. Belli, talk at a US-Japan workshop at UCSD, Jan. 12, 2007.
"The ITG Instability", and "Turbulence in ITER and Beyond", lectures at the Center for Multiscale Plasma Dynamics Winter School, January, UCLA. (UCLA version).
"Highlights of recent work: Effects of shaping on the Dimits nonlinear shift, Implementation of equilibrium sheared flows in GS2, and Algorithm Studies", G.W. Hammett, PPPL theory microseminar, 11/16/2006.
"Implementation of Large-Scale ExB Shear Flow in the GS2 Gyrokinetic Turbulence Code", G.W. Hammett, W. Dorland, N. Loureiro, T. Tatsuno, APS-DPP Meeting, Philadelphia, Oct. 30 - Nov. 3, 2006.
"Gyrokinetic Simulations of ETG and ITG Turbulence", A.M. Dimits, W.M. Nevins, D.E. Shumaker, G.W. Hammett, T. Dannert, F. Jenko, W. Dorland, J.N. Leboeuf, T.L. Rhodes, J. Candy, C. Estrada-Mila, IAEA Fusion Energy Conference (China, 2006).
"Computational Plasma Physics: Powerful New Tools of Scientific Discovery", G.W. Hammett, Summer School Lecture for DOE National Undergraduate Fellowship Program in Plasma Physics and Fusion Sciences, June, 2006.
"Continuum and PIC approaches to Gyrokinetic Simulations", G.W. Hammett, AST558: Graduate Seminar, May 8, 2006. (Dec. 13, 2007: corrections to p.5)
"Discrete Particle Noise and Its Effects on Particle-In-Cell Simulations of Plasma Turbulence", G.W. Hammett, W.M. Nevins, A.M. Dimits, D.E. Shumaker, W. Dorland, 2006 Sherwood International Fusion Theory Meeting / 2006 APS April Meeting April, 2006.
"Plasma Turbulence in Astrophysics and in the Laboratory," W. Dorland, Sherwood International Fusion Theory Meeting / APS April Meeting invited talk, April, 2006.
"Landau-Fluid Closures and Continuum Kinetic Algorithms", G.W. Hammett, ORNL workshop on closures for extended MHD, ORNL March 22-24, 2006.
"A Renormalized Theory of Noise and Its Effect on Particle-In-Cell Simulations of Plasma Turbulence", G.W. Hammett, W.M. Nevins, A.M. Dimits, D.E. Shumaker, W. Dorland, Columbia University Plasma Physics Colloquium, Dec. 2, 2005.
"Turbulent Heating and Fluctuation Characteristics in Alfvenic Turbulence", W. Dorland, APS-DPP Invited Talk, Denver, October 26, 2005.
"Gyrokinetic simulations of ETG Turbulence", W.M. Nevins, APS-DPP Invited Talk, Denver, October 26, 2005.
"Discrete Particle Noise in PIC Simulations of ETG Turbulence", G.W. Hammett, W.M. Nevins, A.M. Dimits, D.E. Shumaker, W. Dorland, NYU Courant Institute of Mathematical Sciences, Magneto-Fluid Dynamics Seminar, October 3, 2005.
"Current Status of Fusion Energy Research & Related Plasma Turbulence Studies", G.W. Hammett Kavli Institute for Theoretical Physics, U.C. Santa Barbara, May 19, 2005. WebCam & Audio.
"Particle Noise-Induced Diffusion & Its Effect on ETG Simulations", G.W. Hammett, W.M. Nevins, A.M. Dimits, 2005 International Sherwood Fusion Theory Conference, Lake Tahoe, Nevada, April 11-13, 2005. Talk and poster. Errata note.
"Discrete Particle Noise in PIC Simulations of Plasma Microturbulence", W.M. Nevins, A.M. Dimits, G.W. Hammett, 2005 Transport Task Force Meeting, Napa, California, April 6-9, 2005, and 2005 International Sherwood Fusion Theory Conference, Lake Tahoe, Nevada, April 11-13, 2005. Poster.
"Discrete Particle Noise in PIC Simulations of Plasma Microturbulence", W.M. Nevins, A.M. Dimits, G.W. Hammett, 2005 Transport Task Force Meeting, Napa, California, April 6-9, 2005. Talk.
"Particle Noise-Induced Diffusion & Its Effect on ETG Simulations", Greg Hammett, W.M. Nevins, A.M. Dimits, PPPL Research Seminar, March 23, 2005.
"Challenges in Gyrokinetic Numerical Algorithms", Greg Hammett, Multiscale Processes in Fusion Plasmas, January 10-14, 2005 Inst. for Pure & Applied Math, UCLA, and the Center for Multiscale Plasma Dynamics. Describes (1) a simple limit of gyrokinetics useful for testing numerical algorithms, (2) Kotschenreuther's trick for fast implicit solutions for continuum/Eulerian gyrokinetic codes, and (3) initial search for alternative iterative methods (that may be particularly useful for extending to the higher collisionality edge region of a plasma).
"Intro Tokamak Turbulence I (overview)", Greg Hammett, Center for Multiscale Plasma Physics, Plasma Physics Winter School, at UCLA January 3-7, 2005.
"Fun with Plasma Turbulence, From Fusion Energy to Black Holes," Greg Hammett, Miller Institute Lunch Talk, Berkeley, Oct. 19, 2004.
"Non-Local Fluid Closure Approximations to Model Long Mean-Free-Path Dynamics", Greg Hammett, Workshop on Kinetic Theory, March 29 - April 2, 2004, The Fields Institute, Toronto. (audio available) A tutorial talk on Landau-fluid equations, based in part on my 1991 APS invited talk.
"Kinetic MHD and Nonlocal Fluid Models of Long-Mean-Free Path Physics", Greg Hammett, Joint Maryland-Princeton (CSCAMM-PICSciE) Workshop on "Numerical Methods for Plasma Astrophysics: From Particle Kinetics to MHD", Maryland, March 22-25, 2004. (presentation similar to above lecture at Fields Inst.)
"Turbulence and Transport in Burning Plasmas", Greg Hammett, AAAS 2004, Seattle, Feb 13-16, 2004. ppt & turbulence movies Ackn.: Plasma Microtrubulence Project. Other talks in session "Burning Plasma Physics - The Next Frontier for Fusion Research"
"Collisionless and collisional effect on MRI in accretion disks", Prateek Sharma, Greg Hammett, Eliot Quataert, Bill Dorland, APS April Meeting, Philadelphia, 7 April 2003.
"Wave-Particle Interactions in the Tail of an Alfven Cascade", William Dorland, Steven Cowley, Gregory Hammett, Eliot Quataert APS April Meeting, Philadelphia, 7 April 2003.
"Advances in Understanding Turbulence & Confinement in Fusion Energy Research", Greg Hammett, W. Dorland, C. Kessel, D. Meade. APS April Meeting, Philadelphia, 5 April 2003.
"Cross-Validation Estimates of Statistical Uncertainties in Empirical Tokamak Scalings", Greg Hammett, Bill Dorland, Mike Kotschenreuther. Transport Task Force Meeting, Madison, Wisconsin 2-5 April 2003.
"Shaping Effects on Gyrokinetic Plasma Turbulence", E.A. Belli, G.W. Hammett, R.V. Budny, & W. Dorland, APS-DPP, Orlando, 2002.
"Introduction to Gyrokinetic and Fluid Simulations of Plasma Turbulence, and Opportunities for Advanced Fusion Simulations", Greg Hammett, et.al. Fusion Simulation Project Workshop, San Diego, Sept.17-18, 2002.
"Kinetic Effects on Small Scale Plasma Turbulence, and Magnetorotational instabilities in Accretion Flows", Greg Hammett, Steve Cowley, Bill Dorland, Eliot Quataert, LMS Durham Symposium: Astrophysical Fluid Mechanics, Univ. of Durham, UK, August 6, 2002.
"Euler and infinity", Greg Hammett, Emilia Solano, unpublished note (2002).
"Comments supporting FIRE Confinement & Operating Space", Greg Hammett, Dale Meade, Charles Kessel, Snowmass 2002 Fusion Summer Study, Snowmass, Colorado, 8-19 July 2002. See also Snowmass presentations.
"Thoughts on Continuum Algorithms", VIIth Easter Plasma Meeting, Turin, Italy April 3-5, 2002.
"Thoughts on Continuum Algorithms", Plasma Microturbulence Project meeting, July 25, 2001, General Atomics.
"Speculations on the Form of Kinetic-MHD closures", Closures Workshop, July 30, 2001, Madison Wisconsin.
"Exploring Possible High Fusion Power Regimes With the IFS-PPPL Model", G.W. Hammett et.al. (presented by D. Meade) at the University Fusion Association 2cd Workshop on Burning Plasma Science, General Atomics, San Diego, May, 2001.
"Exploring Possible High Fusion Power Regimes With the IFS-PPPL Model", G.W. Hammett et.al., presentation at the University Fusion Association 1st Workshop on Burning Plasma Science, Austin, Texas, December, 2000.
"The effects of non-white noise on decorrelation in Markovian statistical theories of turbulence", G.W. Hammett, 42cd Annual APS-DPP, October, 2000, Quebec City.
"Potential Methods for Improving Pedestal Temperatures and Fusion Performance", G.W. Hammett, presentation at the FIRE Physics Workshop, Princeton, May 2000.
Selections from "Aspects of Zonal Flow Dynamics ..." , G.W. Hammett, P.B. Snyder, M.A. Beer, W. Dorland, B.N. Rogers, Sherwood 2000 International Fusion Theory Conference, Spring 2000.
"Theory-Based Models of Turbulence and Anomalous Transport in Plasmas," 1999 Centennial APS talk, aimed at a general non-plasma physics audience. (posted May, 1999)
Longer list of invited talks on gyrofluid turbulence simulations up to 1996.
Papers, talks, and posters by Mike Beer et.al.
Greg Hammett (ghammett@pppl.gov)