Simulations of NSTX with a Liquid Lithium Divertor Module

Stotler, D. P. ; Maingi, R. ; Zakharov, L. E. ; Kugel, H. W. ; Pigarov, A. Yu. ; Rognlien, T. D. ; Soukhanovskii, V. A.

关键词: DIVERTORS;    HEAT FLUX;    HEAT TRANSFER;    LITHIUM;    PLASMA;    RECYCLING;    SIMULATION;    TRANSPORT Computer simulationTokamaks;    NSTX;   

DOI  :  10.2172/973090
RP-ID  :  PPPL-4495
PID  :  OSTI ID: 973090
Others  :  TRN: US1002742

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

A strategy to develop self-consistent simulations of the behavior of lithium in the Liquid Lithium Divertor (LLD) module to be installed in NSTX is described. In this initial stage of the plan, the UEDGE edge plasma transport code is used to simulate an existing NSTX shot, with UEDGE's transport coefficients set using midplane and divertor diagnostic data. The LLD is incorporated into the simulations as a reduction in the recycling coefficient over the outer divertor. Heat transfer calculations performed using the resulting heat flux profiles provide preliminary estimates on operating limits for the LLD as well as input data for subsequent steps in the LLD modeling effort.