2010 Fiscal Year Final Research Report
Universal Feature of Pressure Statistics and its Relation to Large Scale Motion in High-Reynolds Number Turbulent Boundary Layers
| Project/Area Number |
20360083
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Nagoya University |
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Principal Investigator |
TSUJI Yoshiyuki Nagoya University, 工学研究科, 教授 (00252255)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 乱流 |
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| Research Abstract |
Static pressure and velocity fluctuations are measured in high-Reynolds number turbulent boundary layers. It is found that the mean pressure and root mean square profiles are scaled by inner/outer typical velocity scale and length scale independent of Reynolds numbers. Anisotropy caused by the mean velocity gradient is analyzed by linear response theory in the inertial range. The universal anisotropic constants are derived theoretically and they are determined by the experiment.
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