2011 Fiscal Year Final Research Report
Development of technique to generate high elongation rate in planar elongation flow by flow focusing.
| Project/Area Number |
21560167
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 非ニュートン流動 / 伸張流動 |
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| Research Abstract |
The planar elongation flow is one of the important flow field to form thin film and PET bottle formation process. The flow field of a steady planar elongation with high elongation rate was generated by using the flow focusing technique with sheath flow. In order to generate the higher elongation rate, a new device which combines a flow driving piston with a test section were developed and the ability was confirmed. In addition, the planar elongation stress was evaluated by using the channel that was 180 turns while a regular expansion was flowing.
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