List of Publications


2013
  • D. P. Stotler, C. S. Chang, S. H. Ku, J. Lang and G. Park  Energy conservation tests of a coupled kinetic plasma-kinetic neutral transport code. Comput. Sci. Disc. 6, 015006 (2013)
  • D. P. Stotler, C. S. Chang, S. H. Ku, J. Lang and G. Y. Park  Pedestal fueling simulations with a coupled kinetic plasma-kinetic neutral transport code. J. Nucl. Mater. 438, S1275 (2013)

2012
  • S. Ku, J. Abiteboul, P.H. Diamond, G. Dif-Pradalier, J.M. Kwon, Y. Sarazin, T.S. Hahm, X. Garbet, C.S. Chang, G. Latu, E.S. Yoon, Ph. Ghendrih, S. Yi, A. Strugarek, W. Solomon and V. Grandgirard. Physics of intrinsic rotation in flux-driven ITG turbulence. Nucl. Fusion 52, 063013 (2012)
  • S. Koh , C. S. Chang , S. Ku , J. E. Menard , H. Weitzner, W. Choe. Phys. Plasmas 19, 072505 (2012)
  • W. Wan, S. E. Parker, Y. Chen et al. Global Gyrokinetic Simulation of Tokamak Edge Pedestal Instabilities. Phys. Rev. Lett. 109, 185004 (2012)

2011
  • S. M. Kaye, R. Maingi, D. Battaglia, R.E. Bell, C.S. Chang, J. Hosea, H. Kugel, B.P. LeBlanc, H. Meyer, G.Y. Park, and J.R. Wilson. L-H threshold studies in NSTX. Nucl. Fusion 51, 113109 (2011)
  • G. Dif-Pradalier, J. Gunn, G. Ciraolo, C.S. Chang, G. Chiavassa, P. Diamond, N. Fedorczak, Ph. Ghendrih, L. Isoardi, M. Kocan, S. Kud, E. Serre, P. Tamain , Tore Supra Team. The Mistral base case to validate kinetic and fluid turbulence transport codes of the edge and SOL plasmas. Journal of Nuclear Materials 415, S597–S600 (2011)
  • Sriram Lakshminarasimhan, John Jenkins, Isha Arkatkar, Zhenhuan Gong, Hemanth Kolla, Seung-Hoe Ku, Stephane Ethier, Jackie Chen, C.S. Chang, Scott Klasky, Robert Latham, Robert Ross, and Nagiza F. Samatova,. ISABELA-QA: Query-driven Analytics with ISABELA-compressed Extreme-Scale Scientific Data. Super Computing 2011
  • Ye Jin, Sriram Lakshminarasimhan, Neil Shah, Zhenhuan Gong, C.S. Chang, Jackie Chen,  Stephane Ethier, Hemanth Kolla,  Seung-Hoe Ku, Scott Klasky, Robert Latham, Robert Ross, Karen Schuchardt, Nagiza F. Samatova. S-preconditioner for Multi-fold Data Reduction with Guaranteed User-controlled Accuracy. ICDM 2011
  • Y. Sarazin, V. Grandgirard, J. Abiteboul, S. Allfrey, X. Garbet, Ph. Ghendrih, G. Latu, A. Strugarek, G. Dif-Pradalier, P.H. Diamond, S. Ku, C.S. Chang, B F McMillan, T M Tran, L Villard, S Jolliet, A Bottino, P Angelino,  Predictions on heat transport and plasma rotation from global gyrokinetic simulations. Nuclear Fusion 51, 103023 (2011)
  • Weigang Wan, Scott E. Parker, Y. Chen, G.Y. Park, C.S. Chang, D. Stotler. The pinch of cold ions from recycling in the tokamak edge pedestal. Phys. Plasmas 18, 056116 (2011)
  • G. Dif-Pradalier, P. H. Diamond,b) V. Grandgirard, Y. Sarazin, J. Abiteboul, X. Garbet, Ph. Ghendrih, G. Latu, A. Strugarek, S. Ku, and C. S. Chang. Neoclassical physics in full distribution function gyrokinetics. Physics of Plasmas 18, 062309 (2011)
  • R. F. Schmitt, L. Guazzotto, H. Strauss, G. Y. Park, and C.-S. Chang. Free-boundary magnetohydrodynamic equilibria with flow. Phys. Plasmas 18, 022502 (2011)
2010
  • G. Dif-PradalierP. H. Diamond, V. Grandgirard, Y. Sarazin, J. Abiteboul, X. Garbet, Ph. Ghendrih, and A. Strugarek, S. Ku and C. S. Chang. On the validity of the local diffusive paradigm in turbulent plasma transport. Phys. Rev. E 82, 025401(R) (2010)
  • G.Y. Park, C.S. Chang, I. Joseph, and R. Moyer. Plasma transport in stochastic magnetic field caused by vacuum resonant magnetic perturbations at diverted tokamak edge. Physics of Plasmas 17, 102503 (2010)
  • R. Maingi, S.M. Kaye, R.E. Bell, T.M. Biewer, C.S. Chang, D.A. et al, Overview of L–H power threshold studies in NSTX. Nucl. Fusion 50, 064010 (2010)
2009
  • D.A. Gates, et al, C. Chang among many authors. Overview of results from the National Spherical Torus Experiment (NSTX). Nucl. Fusion 49, 104016 (2009)
  • X. Q. Xu, E. Belli, K. Bodi, J. Candy, C. S. Chang, B. I. Cohen, R. H. Cohen, P. Colella, A. M. Dimits, M. R. Dorr, Z. Gao, J. A. Hittinger, S. Ko, S. Krasheninnikov, G. R. McKee, W. M. Nevins, T. D. Rognlien, P. B. Snyder, J. Suh, M. V. Umansky. Dynamics of kinetic Geodesic-Acoustic modes and the radial electric  field in tokamak neoclassical plasmas. Nuclear Fusion 49, 065023 (2009)
  • S. Ku, C.S. Chang, and P.H. Diamond. Full-f gyrokinetic particle simulation of centrally heated global ITG turbulence from magnetic axis to edge pedestal top in a realistic tokamak geometry. Nuclear Fusion 49, 115021 (2009)
  • H.R. Strauss, L. Sugiyama, G.Y. Park, C.S.Chang, S. Ku, and I. Joseph, Extended MHD simulation or resonant magnetic perturbations. Nuclear Fusion 49, 055025 (2009)
  • C. S. Chang,, S. Ku, P. H. Diamond, Z. Lin, S. Parker, T. S. Hahm and N. Samatova. Compressed ion temperature gradient turbulence in diverted tokamak edge. Phys. Plasmas 16, 056108 (2009)
  • M. Adams, S. Ku, P. Worley, D'Azevedo, J. Cummings, C.S. Chang. Scaling to 150K cores: recent algorithm and performance engineering developments enabling XGC1 to run at scale. Journal of Physics: Conference Series 180, 012036 (2009)
  • C.S. Chang, S. Ku, et al, P. Diamond, M. Adams, R. Barreto, Y. Chen, J. Cummings, E. D'Azevedo, G. Dif-Pradalier, S. Ethier, L. Greengard, T. S. Hahm, F. Hinton, D. Keyes, S. Klasky, Z. Lin, J. Lofstead, G. Park, S. Parker, N. Podhorszki, K. Schwan, A. Shoshani, D. Silver, M. Wolf, P. Worley, H. Weitzner, E. Yoon and D. Zorin. Whole Volume Integrated Simulation of Plasma Turbulence in Realistic Diverted-Tokamak Geometry. Journal of Physics: Conference Series 180, 012057 (2009)
2008
  • C S Chang, S Klasky, J Cummings, et al. Toward a first-principles integrated simulation of tokamak edge Plasmas. J.  Phys: Conf. Series 125, 012042 (2008)
  • J. Cummings, A. Pankin, N. Podhorszki, G. Park, S. Ku, R. Barreto, S. Klasky, C. S. Chang, H. Strauss, L. Sugiyama, P. Snyder, D. Pearlstein, B. Ludascher, G. Bateman, A. Kritz and the CPES Team. Plasma Edge Kinetic-MHD Modeling in Tokamaks Using Kepler Workflow for Code Coupling, Data Management and Visualization. Commun. Comput. Phys. 4, 675 (2008)
  • C.S. Chang, S. Ku. Spontaneous rotation sources in a quiescent tokamak edge plasma. Phys. Plasmas 15, 062510 (2008)
  • Y. Chen, S. E. Parker, G. Rewoldt, S. Ku, G. Y. Park, C-S Chang. Coarse-graining the electron distribution in gyrokinetic simulations. Phys. Plasmas 15, 055905 (2008)
2007
  • J. E. Menard, M.G. Bell, R.E. Bell, …, C.S. Chang, et al. Overview of recent physics results from the National Spherical Torus Experiment (NSTX). Nuclear Fusion 47, S645 (2007)
  • G. Park, J. Cummings, C.S. Chang, Podhorszki, S. Klasky, etc. Coupled simulation of kinetic pedestal growth and MHD ELM crash. Journal of Physics: Conference Series 78, 012087 (2007)
  • D.A. Batchelor, M. Beck, A. Becoulet, R.V. Budny, C.S. Chang, et al. Simulation of Fusion Plasmas: Current Status and Future Direction. Plasma Science and Technology 9, 312 (2007)
  • Gunyoung Park and C.S. Chang. A 5-1/2-dimensional theory for fast and accurate evaluation of the cyclotron resonance heating using real-space wave representation. Phys. Plasmas 14, 052503 (2007)
2006
  • S. Ku, C.S. Chang, M. Adams, et al. Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma. Journal of Physics: Conference Series 46 (2006) 87
  • C. S. Chang and S. Ku. Particle simulation of neoclassical transport in the plasma edge. Contrib. Plasma Phys. 46, 496–503 (2006)
  • Hoyul Baek, Seunghoe Ku and C.S. Chang. Neoclassical polarization drift of collisionless single ions in a sheared radial electric field in a tokamak magnetic geometry. Phys. Plasmas 13, 012503 (2006)
2005
  • S.H. Hahn, Seunghoe Ku and C.S. Chang. Wall intersection of ion orbits induced by fast transport of pedestal plasma over an electrostatic potential hill in a tokamak plasma edge. Physics of Plasmas 12, 102501 (2005)
  • Harold Weitzner and C.S. Chang. Extension of adiabatic invariant theory for a charged particle. Phys. Plasmas 12, 012106 (2005)
2004
  • S.H. Ku and C. S. Chang. Property of an X-point generated velocity space hole in a diverted tokamak plasma edge. Phys. Plasmas 11, 5626 (2004)
  • C. S. Chang, Seunghoe Ku, and H. Weitzner. Numerical study of neoclassical plasma pedestal in a tokamak geometry. Phys. Plasmas APS Invited Issue 11, 2649 (2004)
  • H. Weitzner and C. S. Chang. Single particle motion near separatrix and X-point. Phys. Plasmas 11, 3060 (2004)
  • R. Maingi, C. S. Chang, Seunghoe Ku, et al. Effect of gas fueling location on H-mode Access in NSTX. Plasma Phys. Cont. Fusion 46, A305-A313 (2004)
  • S. Hahn, G. Park, C. S. Chang, C. K. Choi. Diffusion in a two-dimensional anisotropic web map by extrinsic noise applied to the intrinsically perturbed quantity. Phys. Rev. E 69, 017202 (2004)
2003
  • Gunyoung Park and C. S. Chang. Numerical study of collisional ripple diffusion in a tokamak plasma. Phys. Plasmas 10, 4004 (2003)
2002
  • C.S. Chang, Seunghoe Kue, and H. Weitzner. X-Transport: A baseline transport in a diverted tokamak plasma edge. Phys. Plasmas 9, 3884 (2002)