Development of a multiscale simulation for thermal lubrication of polymeric liquids
| Project/Area Number |
26790080
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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 |
Computational science
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| Research Institution | University of Hyogo |
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Principal Investigator |
Yasuda Shugo 兵庫県立大学, シミュレーション学研究科, 准教授 (70456797)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | マルチスケール / 高分子液体 / 熱潤滑 / レオロジー / 複雑流体 / 潤滑 / 粘性発熱 / マルチスケールシミュレーション / ソフトマター |
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| Outline of Final Research Achievements |
The synchronized molecular dynamics simulation via macroscopic heat and momentum transfer is developed for the thermal lubrication problems. This method is applied to the lubrication of a polymeric liquid between fast moving parallel plates. The rheological properties and conformation of polymer chains coupled with the local viscous heating are investigated with a non-dimensional parameter, i.e., the Nahme-Griffith number, which is defined by the ratio of the viscous heating to the thermal conduction at the characteristic temperature required to sufficiently change the viscosity. The results also clarify a new transitional phenomenon in the conformational dynamics of polymer chains due to the competition of the flow and thermal agitation.
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Report
(3 results)
Research Products
(24 results)
