一种薄多层工艺器件设计的导热过程算法与仿真
Algorithm and Simulation of Heat Conduction Process for Design of a Thin Multilayer Technical Device
摘要：
本文提出了一种具有非平凡几何结构和低温下材料热力学性质非线性依赖关系的多层器件模型。所考虑的称为低温电池的装置旨在用于多电荷离子源中，用于将气态物质脉冲注入到离子源的电离空间中。低温单元操作的主要要求是在毫秒范围内用于气态物质注入的永久打开和关闭，而单元关闭是通过在单元的外表面处的气态物质的冻结和单元打开-通过单元表面的相应脉冲加热到确定的温度来提供的。模拟了器件在毫秒级时间范围内的热行为。提出了一种求解含时变周期热源的非定常热传导问题的算法。该算法是基于有限差分显-隐方法。讨论了该算法的OpenCL实现。最佳的具体选择的参数，以提供所需的脉冲温度制度的设计的低温电池所选择的工作气体。基于这些结果，可以制定进一步的优化。
英文摘要：
A model of a multilayer device with non-trivial geometrical structure and nonlinear dependencies of thermodynamic material properties at cryogenic temperatures is suggested. A considered device, called cryogenic cell, is intended for use in multicharged ion sources for pulse injection of gaseous species into ionization space of ion sources. The main requirement for the cryogenic cell operation is the permanent opening and closing for gaseous species injection in a millisecond range, while cell closing is provided by freezing of the gaseous specie at the outer surface of the cell and the cell opening - by the corresponding pulse heating of the cell surface up to definite temperature. The thermal behaviour of the device in a millisecond time range is simulated. The algorithm for solving the non-stationary heat conduction problem with a time-dependent periodical heating source is suggested. The algorithm is based on finite difference explicit-implicit method. The OpenCL realization of the algorithm is discussed. The optimal particular choice of the parameters to provide the required pulse temperature regime of the designed cryogenic cell for the chosen working gas is presented. Based on these results further optimization can be formulated.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
