| Project/Area Number |
24760682
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Naval and maritime engineering
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| Research Institution | National Maritime Research Institute |
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Principal Investigator |
FUJIMOTO Shuhei 独立行政法人海上技術安全研究所, その他部局等, 研究員 (80586686)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Keywords | 混相流 / 流れの可視化 / 流れの不安定 / 塗装 / 液体微粒化 |
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| Research Abstract |
Aimed at improving the quality and the efficiency of the coating, we have investigated the motion of liquid particles in an actual airless spray by using a high speed video camera. Here two-dimensional velocity vectors of the particle were quantitatively obtained by the mean shift algorithm and the particle tracking method. These results clearly indicate that the particle velocity decreases with distance from the spray nozzle and also from the spray axis. Since the spatio-temporal variation of the particle velocity in the spray and the deceleration process of the liquid particles directly affect the dynamics of the particle impact (i.e. the quality of coating film), the quantitative data obtained in this study is useful to improve the practical coating operation in shipbuilding.
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