The sloshing behavior of high viscous liquid in cylindrical tanks
- Ishikawajima-Harima Heavy Industries Co. Ltd., Yokohama (Japan)
- National Research Inst. for Earth Science and Disaster Prevention, Tsukuba (Japan)
- Yokohama National Univ. (Japan)
Sloshing of high viscous liquid is an important problem in design and analysis of storage tanks containing viscous fluids such as crude oil and nuclear waste. To clarify viscosity effects on sloshing response, sloshing tests were conducted for 1 cP, 10 cP, 200 cP, and 1,000 cP viscous fluids. Four fundamental sloshing characteristics (natural frequency, damping ratio, harmonic excitation resonance and seismic response) were measured. To clarify the tank size effects, a small tank (D = 780 mm) and a large tank (D = 2,400 mm) were used. In all cases, the measured natural frequencies were not affected by the viscosity. But, the other three values were significantly affected by viscosity, especially for the cases of small tank. Seismic response of small tank cases is linearly decreasing with increment of viscosity. The maximum pressure at sidewall of 1,000 cP liquid case is only one third of that of 1 cP liquid case (i.e. water). As the tank size become larger, high viscous liquid behaves like water. These results are important to seismic design of storage tanks containing viscous liquids.
- OSTI ID:
- 124603
- Report Number(s):
- CONF-950740--; ISBN 0-7918-1345-2
- Country of Publication:
- United States
- Language:
- English
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