2011 Fiscal Year Final Research Report
Numerical analysis of the dynamic motion of a bubble rising through shear-thinning viscoelastic fluids
| Project/Area Number |
21560161
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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 | Muroran Institute of Technology |
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Principal Investigator |
OHTA Mitsuhiro 室蘭工業大学, 大学院・工学研究科, 准教授 (00281866)
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| Project Period (FY) |
2009 – 2011
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| Keywords | Shear-thinning特性 / 粘弾性特性 / 数値解析 / 気泡運動 |
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| Research Abstract |
A numerical method with a new hybrid model which combines the Carreau model for treating shear-thinning properties with the FENE.CR model for treating elastic properties was established for computing non-Newtonian gas-liquid flows. The motion of a bubble or drop rising in shear-thinning viscoelastic fluids and drop deformation and breakup in shear-thinning viscoelastic shear flows were computed using the established method. Numerical results revealed that both elastic and shear-thinning properties had synergistic effects on the bubble or drop motion.
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