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首页> 外文期刊>Journal of Computational Physics >Using sensitivity derivatives for design and parameter estimation in an atmospheric plasma discharge simulation
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Using sensitivity derivatives for design and parameter estimation in an atmospheric plasma discharge simulation

机译：在大气等离子体放电模拟中使用灵敏度导数进行设计和参数估计

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摘要

The problem of applying sensitivity analysis to a one-dimensional atmospheric radio frequency plasma discharge simulation is considered. A fluid simulation is used to model an atmospheric pressure radio frequency helium discharge with a small nitrogen impurity. Sensitivity derivatives are computed for the peak electron density with respect to physical inputs to the simulation. These derivatives are verified using several different methods to compute sensitivity derivatives. It is then demonstrated how sensitivity derivatives can be used within a design cycle to change these physical inputs so as to increase the peak electron density. It is also shown how sensitivity analysis can be used in conjunction with experimental data to obtain better estimates for rate and transport parameters. Finally, it is described how sensitivity analysis could be used to compute an upper bound on the uncertainty for results from a simulation.
机译：考虑了将灵敏度分析应用于一维大气射频等离子体放电模拟的问题。流体模拟用于模拟具有少量氮杂质的大气压射频氦气放电。计算相对于模拟物理输入的峰值电子密度的灵敏度导数。使用几种不同的方法来计算灵敏度导数来验证这些导数。然后说明如何在设计周期内使用灵敏度导数来更改这些物理输入，从而增加峰值电子密度。还显示了如何将敏感性分析与实验数据结合使用，以获得对速率和运输参数的更好估计。最后，描述了如何使用灵敏度分析来为仿真结果计算不确定性的上限。

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