2010 Fiscal Year Final Research Report
Investigation and numerical analysis based on DNS/PDF method on the jet meandering in a round counter-jet
| Project/Area Number |
20560152
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | University of Yamanashi |
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Principal Investigator |
TSUNODA Hiroyuki University of Yamanashi, 大学院・医学工学総合研究部, 准教授 (10207433)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 乱流 / 噴流自励振動 |
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| Research Abstract |
It was found by the simultaneous measurements on the velocity and concentration fields of matter that a round jet injected into a counter uniform flow possessed strong mixing ability. Time-delayed measurements between the velocity field in an axisymmetrical plane and the concentration field in a cross-sectional plane of the jet were also conducted to elucidate the physical mechanism causing the jet wandering. Furthermore, the flip-flop jet which has a similar jet wandering as the counter-jet was investigated numerically. The mult-igrid method, together with parallelization, was incorporated in numerical analysis to accelerate the calculation speed. The simulated flow showed a jet wandering matching quantitatively with the experimental results, confirming the validity of the calculation method.
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Research Products
(9 results)
