航空機実験用カラーシュリーレン装置の試作と重力変動場における流れの観察実験

抄録

The purpose of this study is to develop the experimental technology to analyze the effect of residual acceleration on the dynamics of fluid, specially on the thermal convection under microgravity conditions. A compact color Schlieren optical device combined with dye injection unit was developed for the visualization of the flow field and temperature distribution. This apparatus was applied to the gravity modulational experiments using the parabolic flight of MU-300 airplane, and the drastic changes of the flow pattern were observed accompanied with the gravity modulation and they were compared with the results of numerical simulations. It was concluded from these experiments that the color Schlieren optical device was extremely effective to investigate the distribution of both ther­mal and flow field under microgravity.