Simulation Study of Burning Gontrol with Transport Barrier
نویسنده
چکیده
Dynamics of burning plasmas are studied by use of one dimensional simulation code with current diffusive ballooning mode model. Focusing on the effects of current profile control, burning performance is evaluated. The ohmic plasma is heated by additional heating and ignited state of the plasma is reached.
منابع مشابه
Impurity Behavior in ITER and Helical Burning Plasmas with Internal Transport Barriers
The impurity transport simulation code TOTAL (TOroidal Transport Analysis Linkage) consisting of 1-D(dimensional) transport and 2or 3-D equilibrium is developed for analyzing tokamak and helical burning plasmas controlled by feedback scheme with gas puffing, pellet fueling injection and heating power modulations. In this code multi-species of impurity ions can be treated including neoclassical ...
متن کاملDensity Pro le Control with Current Ramping in a Transport Simulation of Ignitor
Current ramping to achieve reversed shear (RS) con nement enhancement and peaked density pro les are crucial in achieving ignition conditions in Ignitor. Previous transport simulations used either xed density pro les or obtained at density pro les. In this report we explore enhancement con nement, and show a general scheme leading to density pro le peaking using the transport model JETTO in the...
متن کاملAlpha-channeling simulation experiment in the DIII-D tokamak.
Alfvén instabilities can reduce the central magnetic shear via redistribution of energetic ions. They can sustain a steady state internal transport barrier as demonstrated in this DIII-D tokamak experiment. Improvement in burning plasma performance based on this mechanism is discussed.
متن کاملBlood Brain Barrier Disruption by Focused Ultrasound and Microbubbles: A Numerical Study on Mechanical Effects
Introduction: Microbubbles are widely used as contrast agent in diagnostic ultrasound. Recently they have shown good potential for applications in the therapeutic field such as drug delivery to the brain. Recent studies have shown focused ultrasound in conjunction with injected micro-bubbles could temporarily disrupt blood-brain barrier and let therapeutic agents transport into...
متن کاملDensity Gontrol Problems in Large Stellarators with Neoclassical Particle TransPort
With respect to the particle flux, the off-diagonal term in the neoclassical transport matrix becomes crucial in the stellarator long-mean-free-path (lmfp) regime. Central heating with peaked temperature profiles can make an active density profile control by central particle refuelling mandatory. The neoclassical particle confinement can exceed significantly the energy confinement at the outer ...
متن کامل