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Numerical Hydraulics – Assignment 3 Solution Fall 2017
1
Numerical Hydraulics - Assignment 3 Solution
Question 1
Fig. 1: WSE for both 1D and 2D simulations for a discharge of 200 m3/s.
Fig. 2: WSE for both 1D and 2D simulations for a discharge of 300 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Fig. 3: Velocity for both 1D and 2D simulations for a discharge of 200 m3/s.
Fig. 4: Velocity for both 1D and 2D simulations for a discharge of 300 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Fig. 5: Froude number for the 1D simulations for a discharge of 200 m3/s.
Fig. 6: Froude number for the 1D simulations for a discharge of 200 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Question 2
Tab. 1: Minimum and maximum flow depth for both 1D and 2D simulations.
Simulation Min flow depth1 [m] Max flow depth2 [m]
HEC-RAS 1D 1.09 2.84
BASEMENT 1D 0.98 2.86
HEC-RAS 2D 1.22 3.25
BASEMENT 2D 0.997 2.87
1 Minimum flow depth occur at a discharge of 200 m3/s
2 Maximum flow depth occur at a discharge of 300 m3/s
Question 3
Tab. 2: Minimum and maximum flow along the bridge pier for both 1D and 2D
simulations for a discharge of 200 m3/s.
Simulation Min flow depth1 [m] Max flow depth2 [m]
HEC-RAS 1D 1.73 1.80
BASEMENT 1D 1.74 1.80
HEC-RAS 2D 1.82 1.96
BASEMENT 2D 1.76 1.83
Tab. 3: Minimum and maximum flow along the bridge pier for both 1D and 2D
simulations for a discharge of 300 m3/s.
Simulation Min flow depth1 [m] Max flow depth2 [m]
HEC-RAS 1D 2.39 2.47
BASEMENT 1D 2.41 2.47
HEC-RAS 2D 2.48 2.65
BASEMENT 2D 2.49 2.56
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Question 4
Fig. 7: Flow depth of the BASEMENT 2D simulation for a discharge of 200 m3/s.
Fig. 8: Flow depth of the HEC-RAS 2D simulation for a discharge of 200 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Fig. 9: Flow depth of the Basement 2D simulation for a discharge of 300 m3/s.
Fig. 10: Flow depth of the HEC-RAS 2D simulation for a discharge of 300 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Fig. 11: Velocity of the BASEMENT 2D simulation for a discharge of 200 m3/s.
Fig. 12: Velocity of the HEC-RAS 2D simulation for a discharge of 200 m3/s.
Numerical Hydraulics – Assignment 3 Solution Fall 2017
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Fig. 13: Velocity of the BASEMENT 2D simulation for a discharge of 300 m3/s.
Fig. 14: Velocity of the BASEMENT 2D simulation for a discharge of 300 m3/s.