A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank
Abstract
:1. Introduction
2. Methodology
2.1. Numerical Flow of ANSYS Software
2.2. Geometrical Particulars of Rectangular Tank and Baffles
2.3. Theoretical Background
Volume of Fluid (VOF) Method in ANSYS Fluent
- α = 0; the cell is empty
- α = 1; the cell is full
- 0 < α < 1; the cell is partially filled and contains the interface
3. Results and Discussion
3.1. Validation of Sloshing Pressure Results in Unbaffled Rectangular Tank under 60% Filling
3.2. Comparison of Sloshing Pressure between Unbaffled and Baffled Tanks under 25% Filling
3.3. Mesh Sensitivity Analysis
4. Conclusions
- The analysis of sloshing pressure for a rectangular tank with perforated and imperforate baffles under 25% and 60% filling rates was discussed and presented. The validation of the correlation of the sloshing pressure results under 60% filling level for the unbaffled tank case is found to be in good agreement with the numerical data published by Agrawal and Rahumathulla [30] and the experimental data by Vesenjak et al. [33].
- On the other hand, the 25% filling level was extensively investigated considering three conditions: unbaffled tank, baffled tank with perforated baffle, and baffled tank with imperforate baffle for addressing the sloshing pressure problem. It is remarkably observed that the lowest sloshing pressure was in the case of perforated baffle with value of 0.886 bar, followed by the imperforate baffle with value of 0.891 bar, and finally the unbaffled tank with a pressure value of 0.982 bar.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Designation | Dimensions |
---|---|
Rectangular tank | |
Length (mm) | 1008 |
Breadth (mm) | 196 |
Height (mm) | 300 |
Imperforate baffle parameters | |
Length (mm) | 257.12 |
Height (mm) | 180.89 |
Perforated baffle parameters | |
Length (mm) | 199.95 |
Height (mm) | 269.88 |
Hole Length (mm) | 15 |
Hole Height (mm) | 125 |
Baffle arc radius (mm) | 261.29 |
Mesh parameters | |
Mesh type | Hexahedral |
Maximum mesh size | 20 mm |
Number of elements | 7500 |
Number of nodes | 8976 |
Max Sloshing Pressure (Bar) | ||
---|---|---|
Present Study | Numerical Study [30] | Experimental Study [33] |
3.099 | 3.189 | 3.327 |
Mesh Type | Mesh Size | Sloshing Pressure (Bar) under 25% Filling Rate for Unbaffled Tank |
---|---|---|
Automatic | 5 mm | 0.0632 |
Tetrahedral | 14 mm | 0.0629 |
Hexahedral | 20 mm | 0.0661 |
Type of Viscous Model | Sloshing Pressure (Bar) under 25% Filling Rate for Unbaffled Tank |
---|---|
Laminar | 0.9032 |
SST k-omega | 0.9309 |
k-epsilon | 1.9317 |
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Al-Yacouby, A.M.; Ahmed, M.M. A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank. J. Mar. Sci. Eng. 2022, 10, 1335. https://doi.org/10.3390/jmse10101335
Al-Yacouby AM, Ahmed MM. A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank. Journal of Marine Science and Engineering. 2022; 10(10):1335. https://doi.org/10.3390/jmse10101335
Chicago/Turabian StyleAl-Yacouby, Ahmad Mahamad, and Mostafa Mohamed Ahmed. 2022. "A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank" Journal of Marine Science and Engineering 10, no. 10: 1335. https://doi.org/10.3390/jmse10101335
APA StyleAl-Yacouby, A. M., & Ahmed, M. M. (2022). A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank. Journal of Marine Science and Engineering, 10(10), 1335. https://doi.org/10.3390/jmse10101335