The Modified Puls Method is a hydraulic routing technique used to simulate how water flows through reservoirs or storage structures (like detention basins, lakes, or ponds).
It is reservoir routing method.
Modified puls method equation:
Reservoir element:
Reservoir has one or more inflow but only one computed outflow. In case of more inflows, all inflows are added together and then outflow is calculated.
After routing, peak is attenuated and there is lag as well.
Schematic figure HEC HMS:
Output HEC HMS:
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