2012 Fiscal Year Final Research Report
Clarification of the Lagrangian multi-scale mixing mechanism of High-Peclet number turbulent diffusion/reactive fields and its modeling
| Project/Area Number |
22360077
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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 |
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| Co-Investigator(Kenkyū-buntansha) |
TSUNODA Hiroyuki 山梨大学, 医学工学総合研究部, 准教授 (10207433)
YOSHIDA Takashi 信州大学, 工学部, 准教授 (90262857)
KUBO Takashi 名城大学, 理工学部, 准教授 (20372534)
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| Co-Investigator(Renkei-kenkyūsha) |
NAGATA Kouji 名古屋大学, 大学院・工学研究科, 准教授 (50274501)
TERAHIMA Osamu 名古屋大学, 大学院・工学研究科, 助教 (50570751)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 流体工学 / 乱流拡散 / 混合 / ラグランジュ特性 / マルチスケール構造 |
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| Research Abstract |
The purpose of this study is to elucidate the Lagrangian multi-scale mixing mechanism of the high-Peclet number turbulent diffusion/reactive fields by the experiments and thesimulations, and to make the verification and development of the numerical models for the probability density function (PDF) method. For this purpose, we develop the simultaneous measurement system of three components of velocity and concentration in a three-dimensional domain, and also perform the experiments for the fundamental reactive diffusion field by the conventional light absorption spectrometric method. Further, the simulations of reactive concentration filed by the random Fourier modes method and DNS are performed. From these results of experiments and simulations, the fundamental characteristics of concentration statistics have been confirmed and the useful data for the verification of the effectiveness of the numerical model (molecular mixing model) for the PDF method have been obtained.
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