Development of novel control devices for plasma synthesis of nanoparticles using turbulence excitation

这项研究的目的是开发一种装置，通过控制等离子体流中的湍流涨落场来产生所需的纳米颗粒。用独特的数学模型阐明了等离子体流场与纳米颗粒生成/生长过程之间的相互作用。还发展了SPH方法来模拟复杂的热流体场。在此基础上，对湍流的不稳定性以及涡旋结构与发声的关系进行了实验研究和控制。

The objective of this study is to develop the device that produces desired nanoparticles by controlling the turbulent fluctuation field in a plasma flow. The interaction between the plasma flow field and the generation/growth process of nanoparticles is clarified by the unique mathematical model. The SPH method is also developed to simulate complicated thermofluid fields. Furthermore, the turbulent instability and the relation between the vortex structure and the sound generation are investigated and controlled experimentally.