Analysis of anomalous transport in compressible and in compressible turbulence by large scale numerical simultion
Project/Area Number |
21360082
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Fluid engineering
|
Research Institution | Nagoya Institute of Technology |
Principal Investigator |
GOTOH Toshiyuki 名古屋工業大学, 大学院・工学研究科, 教授 (70162154)
|
Co-Investigator(Kenkyū-buntansha) |
WATANABE Takeshi 名古屋工業大学, 大学院・工学研究科, 准教授 (30345946)
NAKANO Tohru 中央大学, 理工学部, 教授 (50055224)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2011: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2009: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
|
Keywords | 乱流 / スカラー異常輸送 / 大規模数値計算 / 圧縮性乱流 / 非圧縮性乱流 / スカラー輸送 / 結合コンパクト差分 / ハイブリッドコード / シュミット数 / 3次元FFT / ペタスケール計算機 / 非圧縮乱流スカラー輸送 / d次元乱流 / 結合コンパクトスキーム / 大規模並列計算 / エネルギースペクトル / スカラーゆらぎ / 統計法則 |
Research Abstract |
A new efficient and accurate numerical method for computation of passive scalar transport in turbulence was developed for the massive parallel machine and applied to the analysis of the anomalous fluctuations of the scalar. It is found that the scaling exponents of the scalar structure functions are not universal. Effects of the spatial dimension on turbulence was also studied. When the dimension is increased as 3, 4, and 5, the compressible motion in one direction becomes dominant over the motion in other directions.
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Report
(4 results)
Research Products
(42 results)