Investigating the impact of equation of state uncertainties on direct-drive inertial fusion energy simulations

研究状态方程不确定性对直接驱动惯性聚变能量模拟的影响

• 批准号: 2420750
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2420750
• 关键词: Investigating; impact; equation; state; uncertainties

Direct-drive inertial fusion energy1 (IFE) requires high-energy lasers to be focussed on a spherical target. The outer material of the target (usually plastic) ablates, driving an implosion of the core deuterium-tritium (DT) fuel. To design efficient future experiments and interpret previous ones an accurate and predictive computational modelling capability is required. This must include a formal understanding of the sources and magnitudes of uncertainty. This project will investigate the uncertainty in direct-drive IFE calculations arising from the equations-of-state used. The primary outcome of the project will be an uncertainty quantification (UQ) framework that could also be applied to other areas of uncertainty, such as opacity, emissivity and thermal transport.

直接驱动惯性聚变能1（IFE）需要将高能激光聚焦在球形目标上。靶的外层材料（通常是塑料）烧蚀，驱动核心氘氚（DT）燃料的内爆。为了设计有效的未来实验和解释以前的实验，需要准确和预测的计算建模能力。这必须包括对不确定性的来源和程度的正式理解。本项目将研究直接驱动IFE计算中所使用的状态方程的不确定性。该项目的主要成果将是一个不确定性量化（UQ）框架，该框架也可应用于其他不确定性领域，如不透明度、发射率和热传输。