Heat transport in the JET scrape-off layer
Heat transport in the JET scrape-off layer
复制标题
JET 刮除层中的热传输
DOI：
10.1088/0029-5515/38/11/304
复制
发表时间：
1998
期刊：
影响因子：
3.3
通讯作者：
P. Stangeby
中科院分区：
文献类型：
--
作者：
S. Erents;P. Stangeby
DIVIMP/NIMBUS洋葱皮模型（OSM）已被用来计算2-D等离子体分布的ne，Te和Ti的JET边缘，边界条件的基础上测量的目标与内置的朗缪尔探针。欧姆，L模式和ELMy H模式放电进行了分析。根据计算的2-D等离子体曲线，？？SOL（r）被提取为SOL内径向位置的函数，表明？SOL（r）随半径增大而增大。在分界线？？SOL（0）在~0.05-1 m2？s-1，最低值出现在H模式（ELM之间）。结果发现？？SOL（r）~[Teu（r）]-2，其中Teu是SOL通量管“上游”端的电子温度。没有发现与磁场BT的明显相关性。SOL Teu/B）缩放。
The DIVIMP/NIMBUS onion skin model (OSM) has been used to calculate 2-D plasma distributions of ne, Te and Ti in the JET edge, based on boundary conditions measured across the targets with built-in Langmuir probes. Ohmic, L mode and ELMy H mode discharges were analysed. From the calculated 2-D plasma profiles, values of ??SOL(r) were extracted as a function of radial location within the SOL, showing that ??SOL(r) increases with radius. At the separatrix ??SOL(0) was in the range ~0.05-1 m2?s-1, with the lowest values occurring for H modes (between ELMs). It was found that ??SOL(r) ~[Teu(r)]-2, where Teu is the electron temperature at the `upstream' end of the SOL flux tube. No clear correlation with the magnetic field, BT, was found. The results are not consistent with Bohm (??SOL Teu/B) scaling.