Experimental and Numerical Analysis of Egg-Shaped Sewer Pipes Flow Performance
Abstract
:1. Introduction
2. Materials and Methods
2.1. Egg-Shaped Section Definition
2.2. Experimental Set-Up
2.3. CFD Model
3. Results
3.1. Boundary Shear Stress and Centreline Velocity Profiles
3.2. Cross-Sectional Velocity Distributions
3.3. Numerical Comparison of Circular and Egg-Shaped Mean Flow Behavior
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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H/R | r/R | Rh 1:10 | Rh 1:20 | Rh 1:50 | Rh Q0 | Q0 |
---|---|---|---|---|---|---|
3.5 | 0.3 | 1.038 | 1.103 | 1.193 | 0.905 | 0.934 |
3.5 | 0.5 | 1.064 | 1.125 | 1.187 | 0.897 | 0.930 |
3.5 | 0.7 | 1.078 | 1.114 | 1.132 | 0.925 | 0.949 |
Test | Experimental Conditions | CFD Model | ||||||
---|---|---|---|---|---|---|---|---|
Q (L/s) | Uav (m/s) | h/H (-) | Rh (m) | Re (×103) | τ = ρU*av2 (N/m2) | τCFD (N/m2) | ||
1 | 3.20 | 0.410 | 0.2 | 0.034 | 5.7 | 0.684 | 0.664 | (−2.9%) |
2 | 7.04 | 0.528 | 0.3 | 0.045 | 9.5 | 0.883 | 0.964 | (9.2%) |
3 | 13.08 | 0.582 | 0.4 | 0.057 | 13.3 | 1.121 | 1.159 | (3.4%) |
4 | 19.03 | 0.658 | 0.5 | 0.064 | 16.8 | 1.254 | 1.374 | (9.6%) |
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Regueiro-Picallo, M.; Naves, J.; Anta, J.; Puertas, J.; Suárez, J. Experimental and Numerical Analysis of Egg-Shaped Sewer Pipes Flow Performance. Water 2016, 8, 587. https://doi.org/10.3390/w8120587
Regueiro-Picallo M, Naves J, Anta J, Puertas J, Suárez J. Experimental and Numerical Analysis of Egg-Shaped Sewer Pipes Flow Performance. Water. 2016; 8(12):587. https://doi.org/10.3390/w8120587
Chicago/Turabian StyleRegueiro-Picallo, Manuel, Juan Naves, Jose Anta, Jerónimo Puertas, and Joaquín Suárez. 2016. "Experimental and Numerical Analysis of Egg-Shaped Sewer Pipes Flow Performance" Water 8, no. 12: 587. https://doi.org/10.3390/w8120587