COMPARISON ANALYSIS OF PHYSICAL MODEL AND FLOW 3D NUMERICAL MODEL OF SPILLWAY TYPE SKI-JUMP AT CISOKAN DAM
<p align="justify">Ski-jump spillway is one of the structures that experience high water fluctuations. Ski-jump serves as energy dissipation in the downstream part of the Ski-jump spillway dam. Pressure fluctuations cause appreciable uplift forces in the substructure causing the r...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/75094 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify">Ski-jump spillway is one of the structures that experience high water fluctuations.
Ski-jump serves as energy dissipation in the downstream part of the Ski-jump
spillway dam. Pressure fluctuations cause appreciable uplift forces in the
substructure causing the rise and collapse of floor slabs, the formation of
cavitation, and so on. With a PMF value of 2,430 m3/s and a Design Flood of 1,430
m3/s at the Cisokan Dam. The results of the physical model test are studied and
provide alternatives for improving hydraulic performance even though it takes a
long time and is expensive. As an alternative to the high cost and length of time in
conducting physical model tests, a numerical model is performed with numerical
analysis using FLOW-3D with the implementation of Computational Fluid
Dynamics (CFD). Computational Fluid Dynamics (CFD) is a hydraulic numerical
model generally used to reduce the total amount of costs and time to be refined for
the physical model because the numerical model is relatively faster and cheaper
and can be used in conjunction with the physical model as a material comparison.
The numerical model uses the FAVOR method with an error value difference of
1.99% compared to the physical model that has been done.
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