Application of wavelet analysis to turbulence : Development of turbulent modeling and its validation
Project/Area Number |
20760055
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Single-year Grants |
Research Field |
Engineering fundamentals
|
Research Institution | Nagoya University |
Principal Investigator |
KATSUNORI Yoshimatsu Nagoya University, 大学院・工学研究科, 助教 (70377802)
|
Project Period (FY) |
2008 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | 計算科学 / 流体物理学 / 乱流 / ウェーブレット / 情報縮約 |
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.
|
Report
(3 results)
Research Products
(46 results)
-
-
-
-
-
-
-
-
[Journal Article] Coherent vortex simulation : application to 3D homogeneous isotropic turbulence2009
Author(s)
N.Okamoto, K.Yoshimatsu, K.Schneider, M.Farge, Y.Kaneda
-
Journal Title
Advances in Turbulence XII, Proceedings of the 12th EUROMECH European Turbulence Conference, September 7-10, 2009, Marburg, Germany, Springer
Pages: 759-762
Related Report
-
[Journal Article] Intermittency in high resolution direct numerical simulation of turbulence in a periodic box : a wavelet viewpoint2009
Author(s)
K.Yoshimatsu, N.Okamoto, K.Schneider, Y.Kaneda, M.Farge
-
Journal Title
Advances in Turbulence XII, Proceedings of the 12th EUROMECH European Turbulence Conference, September 7-10, 2009, Marburg, Germany, Springer
Pages: 945-945
Related Report
-
-
-
-
-
-
-
-
-
-
[Presentation] Coherent vortex simulation of 3D homogeneous isotropic turbulence2009
Author(s)
N.Okamoto, K.Yoshimatsu, K.Schneider, M.Farge, Y.Kaneda
Organizer
62nd Annual Meeting of the APS Division of Fluid Dynamics, Sunday-Tuesday, November 22-24, 2009 ; Minneapolis, Minnesota
Place of Presentation
Minneapolis, Minnesota, USA
Year and Date
2009-11-24
Related Report
-
-
[Presentation] Formation of columnar structure in rotating turbulence2009
Author(s)
Y.Kaneda, K.Yoshimatsu, M.Midorikawa
Organizer
Genevieve Comte-Bellot, Fifty Years of Research on Turbulence and Acoustics, Ecole Centrale de Lyon, Thursday 29th & Friday 30th October 2009, 2009/10/29-30 (10/30)
Place of Presentation
Lyon, Paris
Year and Date
2009-10-30
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-