Session 4D - Water Flow and Solute Transport to a Stream 4
Change boundary condition after 100 d of simulation:
Project Manager Button ”Copy”
Name: plume4
Description: Water flow to a stream - 4
Button ”Open”
Main Processes Heading: Water flow to a stream - 4
Button ”Next”
Time Information Initial time: 100
Final time: 1200
Initial Time Step: 0.001
Minimum Time Step: 0.00001
Maximum Time Step: 50
Button ”Next”
Print Information Check Al++l Number of Print Times: 11
Button ”Select Print Times”:
200 300 400 500 600 700 800 900 1000 1100 1200
Button ”Next”
The BOUNDARY Module:
- Initial Condition:
Toolbar Button: ”Initial Condition”
Import initial condition from previous example:
Menu: Condition->Initial Condition->Import Pressure
Select folder "plume3", file h.out.
Select layer: 7
Menu: Condition->Initial Condition->Import Concentration
Select folder "plume3", file conc.out.
Select layer: 7 - Water Flow Boundary Conditions:
Toolbar Button: ”Water Flow BC”
Select ”Constant flux”,
Select top nodes at the soil surface between the seepage face and the left side and between the stream and the right side; specify a flux=0.05 cm/d. - Observation Nodes
Toolbar Button: ”Observation Points”
Specify 5 points arbitrarily between the source and the stream
Execute HYDRUS
(Execution time on P5-300 = 2150)
OUTPUT:
Menu: Post-Processing ->Observation Points: Concentrations
Menu: Post-Processing ->Time Information: Peclet Numbers
Menu: Post-Processing ->Boundary Information->Solute Fluxes: Constant Boundary Flux
Menu: Post-Processing ->Mass Balances Information
Menu: Post-Processing -> Graphical Display of Results Concentrations