Study of Self-Induced Sloshing in Model Test of a Water Retaining Weir
Abstract
:1. Introduction
2. Experiment Setup &Methodology
2.1. Experiment Setup
2.2. Methodology
2.2.1. FFT Analysis on Autocorrelation Function of Water Level
2.2.2. Prediction Formulation for Theoretical Sloshing Frequencies
2-D Rectangular Vessel Model
Rectangular Vessel with Vertical Baffle Model
3. Results
3.1. Self-Induced Sloshing Phenomenon
3.1.1. Relationship between Water Surface Sloshing Region and Water Level
3.1.2. Relationship between Water Surface Sloshing Regions and Inlet Velocity
3.2. Sloshing Frequencies Results from the Prediction Formula
3.2.1. With/without Consideration of Surface Water Velocity (for Region 1)
3.2.2. With/without Consideration of Baffle Position (for Region 2)
4. Discussion
4.1. Mechanism for Self induced Sloshing
4.2. New Formulawith Consideration of the Width of the Vertical Baffle in Region 2
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Case | V (m/s) | H1 (cm) | V1 (m/s) |
---|---|---|---|
1 | 0.033 | 2.9 | 0.252 |
2 | 0.074 | 4.5 | 0.360 |
3 | 0.119 | 5.9 | 0.445 |
4 | 0.158 | 7.0 | 0.497 |
5 | 0.198 | 7.9 | 0.551 |
6 | 0.239 | 8.7 | 0.606 |
Region 1 | 1st Mode | Region 2 | 1st Mode | ||
---|---|---|---|---|---|
H 1 | Frequency (Hz) | Spectrum (×10−3) | H 1 | Frequency (Hz) | Spectrum (×10−3) |
0.942 | 0.94 | 0.004 | 1.162 | 0.6 | 0 |
0.954 | 0.94 | 0.026 | 1.175 | 0.57 | 0.025 |
0.962 | 0.9 | 3.187 | 1.2 | 0.57 | 0.113 |
0.975 | 0.9 | 2.512 | 1.228 | 0.58 | 0.158 |
1 | 0.88 | 1.467 | 1.246 | 0.58 | 0.189 |
1.061 | 0.85 | 0.194 | 1.253 | 0.58 | 0.217 |
1.094 | 1.17 | 0.057 | 1.271 | 0.59 | 0.128 |
1.106 | 0 | 0 | 1.286 | 0.59 | 0.028 |
-- | -- | -- | 1.301 | 0.6 | 0 |
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Hua, Y.; Cai, F.; Zhou, J.; Zhang, W. Study of Self-Induced Sloshing in Model Test of a Water Retaining Weir. Water 2017, 9, 646. https://doi.org/10.3390/w9090646
Hua Y, Cai F, Zhou J, Zhang W. Study of Self-Induced Sloshing in Model Test of a Water Retaining Weir. Water. 2017; 9(9):646. https://doi.org/10.3390/w9090646
Chicago/Turabian StyleHua, Yulong, Fulin Cai, Jianxu Zhou, and Wen Zhang. 2017. "Study of Self-Induced Sloshing in Model Test of a Water Retaining Weir" Water 9, no. 9: 646. https://doi.org/10.3390/w9090646