Large Eddy Simulation for Turbulent Flow of non-Newtonian Fluid
| Project/Area Number |
21760122
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Fluid engineering
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| Research Institution | University of Fukui |
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Principal Investigator |
OHTA Takashi 福井大学, 大学院・工学研究科, 講師 (10273583)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 非ニュートン流体 / 壁乱流 / 直接数値シミュレーション / 乱流変調 / 乱流モデル / ラージエディシミュレーション |
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| Research Abstract |
To develop a large-eddy simulation(LES) method for non-Newtonian fluid such as surfactant solution, we performed direct numerical simulations(DNS) of turbulent channel flow and investigated features of wall turbulence of non-Newtonian fluid. As a result, we found, due to a scale analysis from a viewpoint of instantaneous structures and turbulence statistics, that the turbulent structures of non-Newtonian fluid could be generally normalized with the local variable viscosity as well as the case of Newtonian fluid. We suggested a modified model for LES and validated the reliability for turbulent flow of surfactant solution.
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Report
(4 results)
Research Products
(10 results)
