This paper deals with suppression characteristics of sloshing in the vessel by a bulkhead, which divides the vessel vertically into two sections but communicates with two sections at the lower part of the vessel. The sloshing mode is separated into the U-tube mode sloshing and the sloshing mode in the separated tank. The effect of aperture height beneath the bulkhead and exciting amplitude on the suppression characteristics of U-tube mode sloshing is investigated experimentally. As a result, following phenomena are clarified. Three types of flow pattern are observed; the flow pattern A with unsteady vortexes, the flow pattern B with single swirl and a vortex, and the flow pattern C with twin swirls. The flow pattern changes from A to B or C with increasing the exciting amplitude. The damping ratio with the bulkhead is much larger than that without the bulkhead. The damping generated by the bulkhead depends on the exciting amplitude. The flow pattern plays an important role for dissipation of the energy of the sloshing. In particular, the vortexes and swirls increase the energy dissipation of the sloshing.
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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4759-4
PROCEEDINGS PAPER
Suppression Characteristics of Sloshing in Vessels by a Bulkhead Available to Purchase
Nobuyuki Kobayashi,
Nobuyuki Kobayashi
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
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Masahiro Watanabe,
Masahiro Watanabe
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
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Tomokazu Honda,
Tomokazu Honda
Honda Motor Company, Ltd., Haga, Tochigi, Japan
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Katsunori Ohno,
Katsunori Ohno
Seiko Epson Corporation, Shiojiri, Nagano, Japan
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Yajun Zhang
Yajun Zhang
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
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Nobuyuki Kobayashi
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Masahiro Watanabe
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Tomokazu Honda
Honda Motor Company, Ltd., Haga, Tochigi, Japan
Katsunori Ohno
Seiko Epson Corporation, Shiojiri, Nagano, Japan
Yajun Zhang
Aoyama Gakuin University, Sagamihara, Kanagawa, Japan
Paper No:
PVP2006-ICPVT-11-93672, pp. 199-205; 7 pages
Published Online:
July 23, 2008
Citation
Kobayashi, N, Watanabe, M, Honda, T, Ohno, K, & Zhang, Y. "Suppression Characteristics of Sloshing in Vessels by a Bulkhead." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 8: Seismic Engineering. Vancouver, BC, Canada. July 23–27, 2006. pp. 199-205. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93672
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