在流体方法中,惯性封闭核聚变器的冲击粒相互作用的微物理学
1<a href="https://ror.org/046rm7j60">UCLA</a> Mathematics Department, Los Angeles, California 90095, USA.
Physical review. E
|October 19, 2024
概括
像高密度碳 (HDC) 这样的消化器材料在受到冲击时会产生密度不均. 线性理论和模拟显示,震后扰动是由沿粒边界的旋流沉积主导的,随着粒粒大小的增加而减少.
科学领域:
- 等离子体物理学的物理学
- 材料科学 材料科学 材料科学
- 核聚变能源的使用方式
背景情况:
- 在惯性封闭聚变中使用的消化器材料 (如高密度碳,) 具有颗粒结构.
- 这些颗粒结构会导致密度不均,并在冲击压缩过程中产生扰动.
研究的目的:
- 为了研究冲击波与消化器材料密度不均性的相互作用.
- 用线性理论和数值模拟来模拟与高密度碳粒的冲击相互作用.
主要方法:
- 利用线性理论与密度不均性和数值模拟的冲击相互作用的结合.
- 模拟高密度的碳粒来研究冲击粒相互作用.
主要成果:
- 后震扰动源于声波反射和在粒度边界的旋转沉积,其中旋转占主导地位.
- 平均后震动动能随着颗粒大小的增加而减少,但能量是在更大的尺度上沉积的.
- 线性理论准确地捕捉了非线性冲击粒相互作用的关键特征.
- 导热显著影响在粒度尺度上的扰动动态.
结论:
- 这些发现支持在类似的模型中去溶粒的统计方法.
- 了解粒度物理对于预测和减轻核聚变消灭器中扰动生成至关重要.
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