G0500-6-1 低密度超音速噴流中におけるガス速度に対する固体微粒子の追従性に関する数値シミュレーション([G0500-6]流体工学部門一般講演(6))

概要

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There are some ceramic coating methods to spray ceramic particles at room temperature by low-density supersonic jet. In order to increase the deposition efficiency of the sprayed particle, the impact velocity of the particle need to exceeds the threshold fracture velocity. The authors have clarified the gas dynamic condition to crush the ceramic particle at substrate by numerical simulation. However, the physical details of the tracking performance of the particle to the low-density gas flow remain unclarified. In this study, the tracking performance of the ceramic particle to the low-density supersonic jet flow is investigated by numerical simulation. It is concluded in this study that the worse tracking performance of the ceramic particle for the low-density jet flow, compared to that of the high-density jet flow, is mainly due to the low density of the jet flow.
一般社団法人日本機械学会の論文
2010-09-04