Fuel energy balance studies of pellet ignition requirements
Fuel energy balance studies of pellet ignition requirements
复制标题
颗粒点火要求的燃料能量平衡研究
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
M. Widner
中科院分区：
文献类型：
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作者：
M. Widner
一个简单的功率平衡模型被用来研究DT燃料点火要求的参数制度适合许多ICF目标的应用。该模型包括由于热传导和辐射引起的燃料能量损失，由于PdV功和能量增益。阿尔法帽。颗粒沉积和推进器边界条件。可以分析地示出，大约为100的最小推动器速度。10/sup 7/ cm/sec是实现点火所必需的，相应的燃油ρ R约为= .1 gm/cm/sup 2/和T约= 4keV。如果热传导损失减少，那么点火所需的最小必要速度被证明是大大减少。提出了各种公式和比例律，这些公式和比例律应有助于使用大型水代码模型的目标设计计算。
A simple power balance model is used to study DT fuel ignition requirements in the parameter regime appropriate for many ICF target applications. The model includes fuel energy loss due to thermal conduction and radiation, gain due to PdV work and ..cap alpha.. particle deposition, and pusher boundary conditions. It can be shown analytically that a minimum pusher velocity of approx. 10/sup 7/ cm/sec is necessary to achieve ignition, with corresponding fuel rho R approx. = .1 gm/cm/sup 2/ and T approx. = 4 keV. If thermal conduction losses are reduced, then the minimum necessary velocity required for ignition is shown to be substantially reduced. Various formulas and scaling laws are presented which should aid target design calculations which use large hydrocode models.