2009 Fiscal Year Final Research Report
Application of wavelet analysis to turbulence : Development of turbulent modeling and its validation
| Project/Area Number |
20760055
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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 |
Engineering fundamentals
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| Research Institution | Nagoya University |
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Principal Investigator |
KATSUNORI Yoshimatsu Nagoya University, 大学院・工学研究科, 助教 (70377802)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 計算科学 / 流体物理学 / 乱流 / ウェーブレット / 情報縮約 |
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| Research Abstract |
A wavelet based non-empirical turbulent modeling for three-dimensional incompressible turbulence at high Reynolds number, called CVE, has been developed. Its validity was also assessed. It was shown that CVE reduces the number of degrees of freedom by a factor 10 with respect to direct numerical simulation, while preserving high-order statistics of the turbulent flow. CVE was generalized to modeling for magnetohydrodynamic turbulence and wall-bounded turbulence.
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