| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In this study, in order to elucidate the mixing phenomenon of a coaxial jet diffusion field in liquid phase, two concentrations of a circular jet and an annular jet were measured simultaneously by the light absorption spectrum method. We developed a concentration measurement system of multiple species with high space and high time resolution, and clarified the statistical properties of the coaxial jet diffusion field. In particular, mixing characteristics such as the diffusion width are clarified when the velocity difference between the circular jet and the annular jet and the Reynolds number are changed. Furthermore, based on the obtained knowledge, we examined the possibility of control such as mixing promotion of the coaxial jet diffusion field by adding disturbance to the flow field.
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