带套筒的二维圆柱体辐射热波的理论模型

IF 4.8 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Matter and Radiation at Extremes Pub Date : 2023-03-01 DOI:10.1063/5.0119240
Cheng-Jian Xiao, Guang-Wei Meng, Yingkui Zhao
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引用次数: 0

摘要

建立了一种半解析模型,研究了低z泡沫筒内高z材料套筒内的二维辐射热波(马沙克波)。在该模型中,高z壁的能量损失被视为主要的二维效应,并通过间接方法考虑,即从驱动源中减去能量损失,忽略壁面损失。利用低z泡沫和高z壁中相互依赖的马沙克波来估计能量损失。通过仿真验证了该模型在典型惯性约束聚变条件下计算的能量和热锋位置。验证的模型为研究二维马沙克波提供了理论工具,有助于进一步了解辐射输运。
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Theoretical model of radiation heat wave in two-dimensional cylinder with sleeve
A semi-analytical model is constructed to investigate two-dimensional radiation heat waves (Marshak waves) in a low-Z foam cylinder with a sleeve made of high-Z material. In this model, the energy loss to the high-Z wall is regarded as the primary two-dimensional effect and is taken into account via an indirect approach in which the energy loss is subtracted from the drive source and the wall loss is ignored. The interdependent Marshak waves in the low-Z foam and high-Z wall are used to estimate the energy loss. The energies and the heat front position calculated using the model under typical inertial confinement fusion conditions are verified by simulations. The validated model provides a theoretical tool for studying two-dimensional Marshak waves and should be helpful in providing further understanding of radiation transport.
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来源期刊
Matter and Radiation at Extremes
Matter and Radiation at Extremes Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
8.60
自引率
9.80%
发文量
160
审稿时长
15 weeks
期刊介绍: Matter and Radiation at Extremes (MRE), is committed to the publication of original and impactful research and review papers that address extreme states of matter and radiation, and the associated science and technology that are employed to produce and diagnose these conditions in the laboratory. Drivers, targets and diagnostics are included along with related numerical simulation and computational methods. It aims to provide a peer-reviewed platform for the international physics community and promote worldwide dissemination of the latest and impactful research in related fields.
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