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Plasma Studies at DUT

Plasma Studies at DUT. Xiaogang Wang Center for Plasma Science & Technology Department of Physics College of Advanced Science & Technology Dalian University of Technology May 2006, Dalian, China. OUTLINE. Overview Plasma Theory & Simulation Team Fusion Related Research Brief Summary.

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Plasma Studies at DUT

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  1. Plasma Studies at DUT Xiaogang Wang Center for Plasma Science & Technology Department of Physics College of Advanced Science & Technology Dalian University of Technology May 2006, Dalian, China

  2. OUTLINE • Overview • Plasma Theory & Simulation Team • Fusion Related Research • Brief Summary

  3. Overview • Plasma Physics Program at Department of Physics • Faculty • > 20 with 2 Chair Professors and 3 Outstanding Young Career Awardees • Graduate Program since 1982 • Enrollment: 25 students • Graduate > 10 PhDs annually • Undergraduate Program since 1998 • Enrollment: 30/60 alternatively

  4. Overview • University Center for Plasma Science & Technology • State Key Disciplinary (2 Nationwide) • 40+ faculty and 200+ graduate students • Plasma branch and theory & simulation arm of State Key Lab of Materials Modification by Beams • Research labs over the university (School of Environment Science, School of Chemical Technology, School of Life Science, School of Electronics & Info Technology)

  5. Overview • College of Advanced Science & Technology (CAST) • Fusion Energy & Plasma Physics • Space Plasma Physics • Computational Physics & Applications

  6. Overview • Research activities • MCF Plasma Physics • Space Plasma Physics (DSP-Cluster) • Plasma Proceedings (Plasma-Wall Interactions) • Atmospheric Pressure Plasma Glow Discharge • Plasma Sources • Beam Physics (Low Power, High Current Beams) • Other Industry Applications

  7. Plasma Theory & Simulation • University supported research team for Basic Plasma Physics • A Faculty of 5 and 40+ graduate students • ~ RMB 1M annual research budget • Associated with SWIP, USTC, ZJU, HIT, PKU, NPU

  8. Fusion Related Research • Fast magnetic reconnection • Hall MHD reconnection • Unmagnetized ions and agnetized electrons • Length scale of ion inertial length di

  9. Fusion Related Research • Sawtooth crashes in Tokamaks • Wang et al, PRL 70, 1627 (1993): in sawtooth crashes (m=1 king-tearing mode) • Reconnection ribbon width scaled by D=VA/Wi=di • Reconnection ribbon length rsq0=rswA/Wi=(dirs)1/2

  10. Fusion Related Research • Sawtooth crashes in Tokamaks • Wang et al, PRL 70, 1627 (1993): • Sawtooth crashes in Tokamaks • In Wang et al, PRL 70, 1627 (1993):

  11. Fusion Related Research • Mode-locking due to error field • Previous work in resistive tearing regime • Current research: • Neoclassical effects? • Error field on double-tearing modes? • Toroidal rotations?

  12. Fusion Related Research • Resistive wall modes (RWM) • Rotating wall to stabilize RWM • Differential rotation of plasmas • Wesson, Phys. Plasma 5, 3816(1998): • The plasma rotation would generate another type of RMW Vrotation > sqr(2)VA • Further studies: • Compressibility: Vrotation > cs • Our research (linear, numerical): S. Y. Cui tomorrow afternoon

  13. J. A. Wesson, Phys. Plasma 5, 3816 (1998)

  14. Brief Summary • A strong plasma program DLUT a wide spectrum • A strong education basis also • Fusion studies are picking up • Collaborations needed

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