As tube banks are set in a duct in a boiler and a heat exchanger, the resonance phenomenon or the self sustained tone are generated due to the interference between vortex shedding and the acoustic characteristics of the duct. It is necessary to know the resonance frequency of the duct, namely sound speed, for avoiding any trouble that may arise. In general, it is said that the sound speed decreases in the duct with tube banks and an evaluation formula is given. However, this formula is often used for the perpendicular direction of the flow. We wanted to know whether this formula would be able to be used for the flow direction and for various arrays of patterns or not. In this paper, the applicability of this expression is discussed by using FEM analysis and experiments.
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ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5451-8
PROCEEDINGS PAPER
Study on Evaluation of Sound Speed in Duct With Tube Banks
Kunihiko Ishihara
Kunihiko Ishihara
The University of Tokushima, Tokushima, Tokushima, Japan
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Kunihiko Ishihara
The University of Tokushima, Tokushima, Tokushima, Japan
Paper No:
FEDSM-ICNMM2010-30128, pp. 693-701; 9 pages
Published Online:
March 1, 2011
Citation
Ishihara, K. "Study on Evaluation of Sound Speed in Duct With Tube Banks." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 693-701. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30128
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