2010 Fiscal Year Final Research Report
Research on acoustic resonance phenomenon in tube banks and prevention design method
| Project/Area Number |
20560222
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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 |
Dynamics/Control
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| Research Institution | Oita University |
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Principal Investigator |
HAMAKAWA Hiromitsu Oita University, 工学部, 准教授 (30243893)
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| Co-Investigator(Renkei-kenkyūsha) |
NISHIDA Eiichi 湘南工科大学, 工学部, 教授 (70410032)
HAYASHI Hidechito 長崎大学, 工学部, 教授 (10173022)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 音響エネルギー / 流体関連振動・騒音 |
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| Research Abstract |
In heat exchangers such as commercially used boilers, acoustic resonant noise is occasionally generated in ducts when gas flows laterally with respect to the axis of the tubes. We have clarified the characteristics of vortex shedding, acoustic damping, acoustic resonance, feedback effect and vortex shedding synchronization in two dimensional boiler model. The new modeling method of vortex shedding synchronization was proposed.
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