TRANSCRITICAL FLOW SIMULATION USING SHALLOW WATER EQUATION MODEL

Satria Damarnegara (Civil Engineering Department, Institut Teknologi Sepuluh Nopember)
Rheszha Pahlavi Ali (Institut Teknologi Sepuluh Nopember)
Mohamad Bagus Ansori (Institut Teknologi Sepuluh Nopember)

Journal of Civil Engineering
Vol 34, No 2 (2019)

This paper shows the capabilities of DELFT3D-FLOW shallow water equation solver on transcritical flow. Two grid configurations are tested using a shock capturing numerical schemes that available on the solver. The simulation shows a good agreement with the analytical solution and proper grid resolution is needed to obtain a stable result. The model then used to simulate a real scale spillway chute channel of Logung Dam in Kudus-Central Java. The model could properly simulate the hydraulic jump, calculate the Froude number and stilling basin performance.