Transient Thermal Characteristics of Cryogenic Target During Removal of Thermal Shield

doi:10.7652/xjtuxb201907001

您当前的位置：

首页 >

文章列表页 >

Transient Thermal Characteristics of Cryogenic Target During Removal of Thermal Shield

更新时间：2025-07-09

- Transient Thermal Characteristics of Cryogenic Target During Removal of Thermal Shield
- Vol. 53, Issue 7, Pages: 1-7(2019)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201907001
  CLC： TL632
- Online First：10 July 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
Transient Thermal Characteristics of Cryogenic Target During Removal of Thermal Shield[J]. 2019, 53(7): 1-7.
DOI：

Transient Thermal Characteristics of Cryogenic Target During Removal of Thermal Shield[J]. 2019, 53(7): 1-7. DOI： 10.7652/xjtuxb201907001.

摘要

针对冷冻靶屏蔽罩开启过程温度场发生突变导致冰层质量恶化的问题

数值研究了屏蔽罩开启过程中冷冻靶温度场的瞬态特性

并提出了温度控制优化方案。数值模拟基于Boussinesq假设和离散坐标辐射模型

借助考虑辐射环境变化的冷冻靶多重屏蔽罩非稳态模型

得到了黑腔气体压力、封口膜透射率等参数的影响规律

并分析比较了在不同冷环控制方案下开罩的数值结果。研究结果表明:屏蔽罩开启后

靶丸表面绝对温度急剧升高

均匀性迅速恶化; 氦气压力增大时

开罩过程的靶丸表面绝对温度无明显变化

但最大温差显著增大; 减小封口膜透射率

可有效减小靶丸表面温升和最大温差; 存在一个最优冷流量

使屏蔽罩开启过程中温升和最大温差在较宽的透射率范围内满足打靶要求

所满足的透射率范围相对于定壁温开罩增加了19倍。所提优化方案对冷冻靶温度控制方面具有指导意义

可为顺利打靶提供一定的先决条件。

Abstract

In the present study

the transient thermal characteristics of cryogenic target during the thermal shield removal process are numerically studied

and optimal temperature control schemes are proposed to improve the target temperature distribution and to avoid ice quality deterioration.An unsteady numerical model is established for the cryogenic target with multiple thermal shields based on the Boussinesq assumption and the discrete coordinate radiation model.The transient thermal characteristics of the cryogenic target during the removal of thermal shield are analy-ed under different hohlraum pressures and sealing film transmittances

and the numerical results of removal thermal shield under different control schemes of cooling rings are analy-ed.The results show that the temperature on the capsule surface rises precipitously in accompany with the deterioration of temperature uniformity after removing the thermal shield.As the helium pressure in hohlraum increases

the maximum temperat

关键词

Keywords

references

江少恩, 丁永坤, 缪文勇, 等.我国激光惯性约束聚变实验研究进展 [J].中国科学: G辑物理学力学天文学, 2009(11): 1571-1583.

JIANG Shaoen, DING Yongkun, MIAO Wenyong, et al.Research progress on laser inertial confinement fusion experiment in China [J].Science in China: Series G Physics, Mechanics & Astronomy, 2009(11): 1571 -1583.

张杰.浅谈惯性约束核聚变 [J].物理, 1999, 28(3): 142-152.

ZHANG Jie.Discussion on inertial confinement nuclear fusion [J].Physics, 1999, 28(3): 142-152.

SANCHEZ J J, GIEDT W H.Thin films for reducing tamping gas convection heat transfer effects in a national ignition facility hohlraum [J].Fusion Science Technology, 2003, 44(4): 811-819.

HAAN S W, LINDL J D, CALLAHAN D A, et al.Point design targets, specifications, and requirements for the 2010 ignition campaign on the national ignition facility [J].Physics of Plasmas, 2011, 18(5): 041006.

唐永建, 蒋伟阳.ICF低温冷冻靶制备技术 [J].强激光与粒子束, 1998, 10(1): 155-160.

TANG Yongjian, JIANG Weiyang.Preparation technology of ICF cryogenic target [J].High Power Laser and Particle Beams, 1998, 10(1): 155-160.

MOLL G, MARTIN M, BACLET P.Thermal simulations of the LMJ cryogenic target [J].Fusion Science Technology, 2007, 51(4): 737-746.

MARTIN M, GAUVIN C, CHOUX A, et al.A way to reach the cryogenic’s temperature and roughness requirements for the laser mega joule facility [J].Fusion Science Technology, 2007, 51(4): 747-752.

LONDON R A, KOZIOZIEMSKI B J, MARINAK M M, et al.Low mode control of cryogenic ICF fuel layers using infrared heating [J].Fusion Science Technology, 2006, 49(4): 608-615.

彭述明, 张伟光, 龙兴贵, 等.DT冷冻靶分层技术进展 [J].低温工程, 2008(6): 60-63.

PENG Shuming, ZHANG Weiguang, LONG Xinggui, et al.Layering technology of DT cryogenic targets [J].Cryogenics, 2008(6): 60-63.

MOLL G, BACLET P, MARTIN M.Recent results in thermal and hydrodynamic simulations of cryogenic target for LMJ [J].Fusion Science Technology, 2006, 49(4): 574-580.

辛毅, 厉彦忠, 丁岚, 等.辐射条件下球腔冷冻靶温度场分布数值研究 [J].原子能科学技术, 2018, 53(1): 1-7.

XIN Yi, LI Yanzhong, DING Lan, et al.Numerical investigations on temperature distribution of spherical hohlraum cryogenic target under radiation condition [J].Atomic Energy Science Technology, 2018, 53(1): 1-7.

殷阁媛, 厉彦忠, 郑江, 等.辐射换热对冷冻靶温度影响的数值分析 [J].强激光与粒子束, 2015, 27(6): 062007.

YIN Geyuan, LI Yanzhong, ZHENG Jiang, et al.Numerical analysis of radiation heat transfer effects on cryogenic target temperature [J].High Power Laser and Particle Beams, 2015, 27(6): 062007.

陈鹏玮, 厉彦忠, 辛毅, 等.冷却气体对黑腔系统温度场影响数值模拟 [J].原子能科学技术, 2018, 52(3): 553-561.

CHEN Pengwei, LI Yanzhong, XIN Yi, et al.Numerical simulation of cooling gas effect on temperature distribution inside cryotarget system [J].Atomic Energy Science and Technology, 2018, 52(3): 553-561.

田苗苗.冷冻靶保护罩开启机构稳定性分析 [D].哈尔滨: 哈尔滨工业大学, 2014: 1-4.

LONDON R A, MOODY J D, SANCHEZ J, et al.Thermal infrared exposure of cryogenic indirect drive ICF targets [J].Fusion Science Technology, 2006, 49(5): 581-587.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Dynamic Thermal Characteristics of Cryogenic Target Under Temperature Disturbance of Thermal Shield

Study of the Mechanism of Electrostatic Accumulation and Current Density Distribution Characteristics During Liquid Hydrogen Pipeline Transportation

Numerical Simulation of Space Charge Distribution Characteristics of Polyimide Materials under X-Ray Irradiation

Numerical Simulation Study on Geothermal Extraction Characteristics of Supercritical CO2 in Heterogeneous Fractures

Action Mechanism of Heat Transfer between the Working Medium and the Impeller on Aerodynamic Performance and Flow Characteristics of Radial Inflow Turbines with Supercritical Carbon Dioxide

Related Author

陈冠华

李翠

郭富城

厉彦忠

SUN Wenhao

LIU Hongbao

WANG Lei

QING Ziyou

Related Institution

School of Energy and Power Engineering, Xi'an Jiaotong University

School of Energy and Power Engineering，Xi’an Jiaotong University

Aerospace System Engineering Shanghai

School of Electrical Engineering，Xi’an Jiaotong University

Northwest Institute of Nuclear Technology

⁰