Effects of Non-Newtonian viscosity and Marangoni on producing of capsules by using a compound jet
Project/Area Number |
21560177
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Fluid engineering
|
Research Institution | Osaka University |
Principal Investigator |
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
|
Keywords | 非線形 / 表面張力 / ジェット / 非ニュートン粘性 / マランゴニー / 崩壊 / カプセル / 不安定 / 非ニュートン流体 / 破断 |
Research Abstract |
On producing liquid micro-capsules by using a compound liquid jet which consists of core and annular phases, effects of non-Newtonian viscosity in a polymer liquid and Marangoni effects due to locally varying concentration of a surfactant are investigated. In particular, disintegrations of the annular phase due to the ballooning phenomena appearing in a low Reynolds number region become worse when the viscosity is pseudo-plastic comparing with Newtonian and dilatant, except for sufficiently low Weber numbers and inner surface tension.
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Report
(4 results)
Research Products
(55 results)