| 激光聚变内爆流体不稳定性基础问题研究进展 |
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| 引用本文： | 王立锋,叶文华,陈竹,李永升,丁永坤,赵凯歌,张靖,李志远,杨云鹏,吴俊峰,范征锋,薛创,李纪伟,王帅,杭旭登,缪文勇,袁永腾,涂绍勇,尹传盛,曹柱荣,邓博,杨家敏,江少恩,董佳钦,方智恒,贾果,谢志勇,黄秀光,傅思祖,郭宏宇,李英骏,程涛,高振,方丽丽,王保山,王英华,曾维新,卢艳,旷圆圆,赵振朝,陈伟,戴振生,谷建法,葛峰峻,康洞国,张桦森,乔秀梅,李蒙,刘长礼,申昊,许琰,高耀明,刘元元,胡晓燕,徐小文,郑无敌,邹士阳,王敏,朱少平,张维岩,贺贤土.激光聚变内爆流体不稳定性基础问题研究进展[J].强激光与粒子束,2021,33(1):012001-1-012001-60. |
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| 作者姓名： | 王立锋 叶文华 陈竹 李永升 丁永坤 赵凯歌 张靖 李志远 杨云鹏 吴俊峰 范征锋 薛创 李纪伟 王帅 杭旭登 缪文勇 袁永腾 涂绍勇 尹传盛 曹柱荣 邓博 杨家敏 江少恩 董佳钦 方智恒 贾果 谢志勇 黄秀光 傅思祖 郭宏宇 李英骏 程涛 高振 方丽丽 王保山 王英华 曾维新 卢艳 旷圆圆 赵振朝 陈伟 戴振生 谷建法 葛峰峻 康洞国 张桦森 乔秀梅 李蒙 刘长礼 申昊 许琰 高耀明 刘元元 胡晓燕 徐小文 郑无敌 邹士阳 王敏 朱少平 张维岩 贺贤土 |
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| 作者单位： | 1.北京应用物理与计算数学研究所，北京 100094 |
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| 基金项目： | 国家自然科学基金项目（11575033，11675026，11975053，11805003，11871443）:中国博士后科学基金项目（2019M660311，2019M660560） |
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| 摘 要： | 激光聚变有望一劳永逸地解决人类的能源问题，因而受到国际社会的普遍重视，一直是国际研究的前沿热点。目前实现激光惯性约束聚变所面临的最大科学障碍（属于内禀困难）是对内爆过程中高能量密度流体力学不稳定性引起的非线性流动的有效控制，对其研究涵盖高能量密度物理、等离子体物理、流体力学、计算科学、强冲击物理和高压原子物理等多个学科，同时还要具备大规模多物理多尺度多介质流动的数值模拟能力和高功率大型激光装置等研究条件。作为新兴研究课题，高能量密度非线性流动问题充满了各种新奇的现象亟待探索。此外，流体力学不稳定性及其引起的湍流混合，还是天体物理现象（如星系碰撞与合并、恒星演化、原始恒星的形成以及超新星爆炸）中的重要过程，涉及天体物理的一些核心研究内容。本文首先综述了高能量密度非线性流动研究的现状和进展，梳理了其中的挑战和机遇。然后介绍了传统中心点火激光聚变内爆过程发生的主要流体力学不稳定性，在大量分解和综合物理研究基础上，凝练出了目前制约美国国家点火装置（NIF）内爆性能的主要流体不稳定性问题。接下来，总结了国外激光聚变流体不稳定性实验物理的研究概况。最后，展示了内爆物理团队近些年在激光聚变内爆流体不稳定性基础性问题方面的主要研究进展。该团队一直从事激光聚变内爆非线性流动研究与控制，以及聚变靶物理研究与设计，注重理论探索和实验研究相结合，近年来在内爆重要流体力学不稳定性问题的解析理论、数值模拟和激光装置实验设计与数据分析等方面取得了一系列重要成果，有力地推动了该研究方向在国内的发展。
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| 关 键 词： | 激光聚变 惯性约束聚变 流体力学不稳定性 高能量密度物理 非线性流动 辐射流体力学 内爆物理 |
| 收稿时间： | 2020-06-23 |
Review of hydrodynamic instabilities in inertial confinement fusion implosions |
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| Abstract: | Laser fusion, likely the ultimate solution to the crisis of human energy, is highly valued by the international community and has always been the focus of international research. It turns out that the biggest scientific obstacle of laser fusion is the effective control of the high-energy-density nonlinear flows during implosions. The research of high-energy-density nonlinear flows covers many different fields, such as high-energy-density physics, plasma physics, fluid mechanics, computing science, strong impact physics, and high pressure atomic physics. Meanwhile, the capability of multi-material and multi-scale numerical simulations as well as large laser facility with high output power is also needed. As an emerging research field, it is full of all kinds of novel phenomena to be explored. In addition, hydrodynamic instabilities and the subsequent turbulent mixing in high-energy-density flows, are also important processes in astrophysical phenomena (e.g., galaxy collision and merging, stellar evolution, formation of protostars and supernova explosion) and involve with the core content of astrophysics. This paper reviews, firstly the status and progress, as well as the challenges and opportunities of high-energy-density nonlinear flows research. Secondly, it introduces hydrodynamic instabilities during implosions in central ignition laser fusion, among which, key factors related to the bottleneck of implosion performance of the National Ignition Facility (NIF) in the United States are condensed. Next, it summarizes the development of hydrodynamic instability experiments in laser fusion abroad. Finally, it lists some key achievements on the fundamental issues of hydrodynamic instabilities by the laser fusion implosion physics team in China over the last three years. This team has been engaged in the research and control of nonlinear flows in laser fusion implosions, as well as the research and design of target physics. A lot of improvements have been made in recent years on the theoretical analysis and numerical simulation of outstanding issues for hydrodynamic instabilities in laser fusion implosions, and the design and analysis of experiments on large lasers, which greatly promoted the development of this research direction in China. |
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