title
M.Y.Ye2019
simulation study of xx in SFD with H mode for HL-2M
Effect of high recycling at outer divertor in snowflake divertor with H mode for HL-2M
H Si2019
modeling the effect of high recycling on improvement of radition power at outer divertor for snowflake divertor of HL-2M by SOLPS
SOLPS mdeling of the effect on plasma detachement of high recycling at outer divertor for snowflake divertor of HL-2M in H-mode
SOLPS analysis of the effect of high recycling at outer divertor in snowflake divertor in HL-2M with H-mode
CF Sang2016
SOLPS modelling of ...on HL-2M
Chen Zhang2019
Effect of high recycling at outer divertor on detachment in sonwflake divertor in HL-2M with H-mode
Chen zhang2020FED
the simulation of the application of snowflake magnetic configuration on the HL-2M with H-mode by SOLPS
abstract
- SFD热流耗散的可行方式
- 研究SFD使用SOLPS-ITER,对HL-2M装置
- 建立辐射,密度,zeff的关系式,both SD and SFD
- 深入分析低/高密度:低密度...高密度...
- 低密度:先脱靶,高DOD,杂质屏蔽
- 挑战:热流耗散,抑制侵蚀
- 要求低密度脱靶
- 新的偏滤器设计
- in the present work,
- SD & SFD with SOLPS
- The modeling results show
- 外偏滤器靶板附近的高再循环显著增加辐射,降低脱靶阈值,相同的上游设置
- moreover,由于SFD水平靶板的影响,碳杂质在外靶板附近聚集显著抑制杂质反流,显著提高芯部约束,降低芯部辐射
- addiational,SFD在高功率下表现出更好的辐射特性,与SD相比,显著降低外靶板的电子温度和沉积热流
- therefore,SFD显著增加辐射,降低靶板温度,同时在高功率下游更好的表现,may be used as one of the scientific metrics for future fusion devices.
- SOLPS模拟封闭性的印象
- ...
1.SOLPS 5.0 探究挡板几何的影响
- 低热流,低温度,低密度实现脱靶
- it is found that:
- SFD显著着降低靶板热流与温度
- SFD显著增加外靶板辐射
- SOLPS分析Li注入,during H-mode discharge on EAST
- Li和D强烈反应。
- 比较有氘和无氘
- 结果发现
- 价态分布
- evolution of Li dischage
- prefer to accumulate on the HFSD
- the reson for Li accumulation is discussed in this sutdy
- SOLPS模拟EAST
- 主要区别是靶板材料
- to separate the effect
- three PFMs case SFD & SD
- C divertor更加提高中性密度
- promoting the achievement of the palsma detachment
- the simulation demonstrates that
- 预测SFD compare with the conventional divertor by SOLPS-ITER
- 热流控制,功率耗散
- 结果表明:fexp,q_{dep},
- SFD更高的功率耗散,由于Ne的分布位置不同
introduction
- 功率耗散是问题
- 预测热流115 vs. 10 MW and 5eV
- 寻找合适的耗散功率的方式
- SFD
- 两个XP
- fexp,conn,A_{weted}
- 降低热流,增加辐射
- 之前的工作证明:
- TCV,DIII-D,NSTX,HL-2M,AUG-U,增加流扩张,连接长度。降低热流
- gap:
- 碳靶,内源杂质辐射。没人做过高再循环的影响
- HL-2M,
- SOLPS
- The paper is organized as follows
- section2
- section3
- section4
- 控制热流和侵蚀是挑战
- 10,5矛盾
- H-mode
- In respose to this challenge
- HL-2M,parameters()
- 可行方案:SFD
- 降低热流
- 增加辐射
- 前人的实验验证
- In this paper,
- SOLPS
- HL-2M
- outline
控制热流侵蚀
10MW 5eV
新的偏滤器概念——封闭性
实验研究
研究结果表明
however,对于SFD是否能够增加辐射降低靶板温度,存在疑问
SOLPS+HL-2M
实验设置,为探究SFD的影响,对比SD最为对照
通过直接对比,研究SFD对偏滤器等离子体物理的影响
outline
控制热流和抑制溅射
10MW 5eV
中性阻挡被视为是一种可行的方案(添加参考文献)
it is expected that:增加封闭性,增加辐射耗散,提高抽气效率
实验发现,低密度脱靶,装置TCV,DIII-D,NSTX,AUG-U
Alcator C-mod 发现
it was found that
大量的模拟工作发现SFD降低靶板热流
装置上发现的现象
-
两个方面:
- 封闭性
- 夹角
没有显著证据表明
文献综述...
SOLPS + outline
- HL-2M:
- R
- a
- k
- B_{T}
- SFD
- to our knowledge,no sumulation work has yet been performed on the
- outline
耗散功率,移除杂质
控制热流10MW 5eV
SFD被应用到
however,高熔点,
应用,实验,TCV
recombined on the solid surface via surface recombination
in TCV,...
in AUG-U,...
in this work,focus on by SOLPS
outline
EAST with AD,芯部约束问题,破裂
一方面,先进偏滤器位型,另一方面,新的磁场位型
SFD 降低靶板热流,in DIII-D
芯部杂质屏蔽in NSTX
promote the achievement of detachment
in this work,for the purpose of
outline
simulation setting/SOLPS modeling inputs
- SOLPS-ITER,
- h-mode \cite{CF. Sang2018}
- recycling
- 上游密度,功率扫描,
- cryopump
- SOLPS
- 两种磁场位型SD,SFD(\cite{zheng2016,jiaxian2018}),fig1
- fig2 show the mesh respectively
- 模拟粒子:D,C
- innermost:
- 距离
- 密度
- 流
- recycling
- pump
- 溅射
- drift
- 下一步包含漂移
翻译人员
HL-2M磁位型EFIT \cite{Lao L1998}
正场,LSN
fig1 磁场,fig2 mesh and baffle structure
网格数 98*38
SOLPS5.0, B2.5连续性方程求解电势 & eirene输运方程计算输运
-
模拟参数设置:
- 密度
- innermost 位置
- OMP宽度
- 使用的是什么?实验?还是模拟
- flux set to zeros
- 泄露因子
- 鞘层条件
- plasma regipon
- neutral region
- recycling
- simulation particle species
- sputering yield
- 输运系数
- h-mode: descirption
- 热衰减长度
- 偏滤器区域常数输运系数
- 不考虑ELMs, dirft
- 时间步长
- 内部迭代次数
- 主要方程的残差要足够低
- 不考虑漂移
- USN,磁位型,正场,有助于内靶板先脱靶
- SOLPS-ITER:
- B2.5
- EIRENE
- 考虑的反应:table
- OMP内外,位置
- 密度变化范围
- 输运系数:
- SOL温度和密度衰减长度
- 网格98*38
- recycling
- 模拟粒子D+C
- sputering
- 不考虑烃溅射
- 体复合损失:
- 不计算原子损失
- 电荷减缓损失
- benchmark
LSN for SFD&SD 磁场+网格
SOLPS
OMP position
密度
flux
泄露因子
H-mode profiles
98*38
再循环
模拟粒子
反应
recycling
0.93 pump flow rate
EAST:R,a,k,I_{p},B_{t},H-mode
however
it is necessay to understand the difference in the **
SOLPS-ITER, B2.5+eirene
focus on the effect of
LSN, P_{SOL}, OMP location
H-mode
recycling
pump 0.95
D+C
recation
to study the effects of divertor...,three case are simulation
不考虑漂移
-
SOLPS-ITER
- B2.5
- EIRENE
magnetic configuration fig1
I_{p}, inter-null
P_{SOL}
seeding rate
D_{\perp}
\chi_{e,i}
baffles recycling rate
fexp conn
估算热流
conn降低脱靶阈值?? 增加辐射??