SIMULATION OPEN CHANNEL FLOW FOR VARIOUS FROUDE NUMBER
Flow over a bump occurs when the water flow with specific velocity in a wide channel approaches a bump, so that the flow will be deformed. In this research, we study free surface deformation due to flow over a bump. We investigate this phenomena using non-dispersive SWE model and dispersive Bouss...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/34820 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Flow over a bump occurs when the water flow with specific velocity in a wide
channel approaches a bump, so that the flow will be deformed. In this research,
we study free surface deformation due to flow over a bump. We investigate
this phenomena using non-dispersive SWE model and dispersive Boussinesq
model. Using (the non-dispersive) SWE model, three types of flow are simulated.
Steady free surface for the case of subcritical flow, supercritical flow and frictionless
ow are nicely comparable with analytical predictions. Next, the Boussinesq model is solved using finite difference methods with predictorcorrector step. In Boussinesq simulation, we observe the appearance of undulation in dam break flow test. This undulation is expected to appear in
dispersive scheme the Boussinesq numerical scheme is implemented to recompute
free surface flow oaver a bump. Various interesting profles are produced. |
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