Boundary Plasma Turbulence Simulations for Tokamaks  

作　　者：X.Q.Xu M.V.Umansky B.Dudson P.B.Snyder 

机构地区：[1]Lawrence Livermore National Laboratory,L-630,P.O.Box 808,7000 East Ave.,Livermore,CA 94550,USA [2]Institute of Fusion Theory and Simulation,ZhejiangUniversity,Hangzhou 310027,China [3]Department of Physics,University of York,Heslington,York,YO105DD,UK [4]General Atomics,13-303,P.O.Box 85608,San Diego,CA 92186-5608,USA.

出　　处：《Communications in Computational Physics》2008年第10期949-979,共31页计算物理通讯（英文）

基　　金：This work was performed under the auspices of the U.S.Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344。

摘　　要：The boundary plasma turbulence code BOUT models tokamak boundaryplasma turbulence in a realistic divertor geometry usingmodified Braginskii equations for plasma vorticity,density(ni),electron and ion temperature(Te,Ti)and parallelmomenta.The BOUT code solves for the plasma fluid equations in a three dimensional(3D)toroidal segment(or a toroidal wedge),including the region somewhat inside the separatrix and extending into the scrape-off layer;the private flux region is also included.In this paper,a description is given of the sophisticated physical models,innovative numerical algorithms,and modern software design used to simulate edgeplasmas in magnetic fusion energy devices.The BOUT code’s unique capabilities and functionality are exemplified via simulations of the impact of plasma density on tokamak edge turbulence and blob dynamics.

关 键 词：Plasma turbulence simulation plasma two-fluids equation field-aligned coordinates plasma blobs 

分 类 号：TL6[核科学技术—核技术及应用]