2017 Fiscal Year Final Research Report
Proposal of numerical simulation for film formation in spray painting
| Project/Area Number |
16K18274
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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 |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Research Collaborator |
Soma Tatsuya 東北大学, 大学院工学研究科, 大学院生
Nyui Souta 東北大学, 大学院工学研究科, 大学院生
Mayusumi Hidenori 東北大学, 大学院工学研究科, 大学院生
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 噴霧塗装 / 自由表面解析 / VOF法 / 液滴 / 衝突 |
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| Outline of Final Research Achievements |
To investigate behaviors of attachment phenomenon of paint droplets around a target for automotive spray painting, numerical simulations with Volume of Fluid method were conducted. We developed our existing simulation code, and simple-CLSVOF method was introduced. Furthermore, an interpolation of viscosity in VOF simulation was optimized. In the numerical simulations, a single droplet was impacted at a fixed wall, and the numerical results correspond to previous experimental ones. When two droplets were impacted at a wall, the liquid was floated at the impacted point of liquid films, and the height of the floated liquid was varied depending on the distance between the droplets. Moreover, we developed our code to take account of the effect of electric field, and the numerical results showed that the shape of a falling droplet was changed by the effect of electric field.
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| Free Research Field |
化学工学
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