Development of Atmospheric Intermediate-Temperature Plasma Flow System for Synthesis of Biocompatible Nanomaterials

从化学工程和流体力学的角度出发，从实验、理论和数值三个方面研究了等离子体反应性热流体场合成生物相容纳米材料的基本过程。从而阐明了纳米粒子的集体生长和对流/扩散传输的同步过程以及大气等离子体流动的湍流行为。此外，还揭示了流体动力不稳定性的动态分离、边界层对局部外部扰动的感受性以及条纹状结构与射流的相互作用。此外，还证明了SPH方法适用于等离子体流中前兆溶液的破碎过程。

From the viewpoints of chemical engineering and fluid mechanics, experimental, theoretical and numerical studies were carried out to investigate the fundamental processes that are involved in the biocompatible nanomaterial synthesis using a reactive thermofluid field of plasma. In consequence, the simultaneous processes of the collective growth and convective/diffusive transports of nanoparticles and the turbulent behavior of an atmospheric plasma flow were clarified. Furthermore, fluid-dynamic instabilities on dynamic separation, boundary layer receptivity for local external disturbance and interaction between a streaky structure and a jet flow were revealed. In addition, it was demonstrated that SPH method was applicable to the breakup process of precursory solution in a plasma flow.