What is Muskingum routing?
What is Muskingum routing?
The Muskingum routing method uses a conservation of mass approach to route an inflow hydrograph. Through the inclusion of a travel time for the reach and a weighting between the influence of inflow and outflow, it is possible to approximate attenuation.
What is Muskingum routing equation?
The Muskingum method is a hydrological flow routing model with lumped parameters, which describes the transformation of discharge waves in a river bed using two equations. These equations are applied within a river reach between two cross sections of a river.
What is Muskingum method used for?
The Muskingum routing procedure is used for systems that have Storage – Discharge relationships that are hysteretic. That is, for systems for which the outflow is not a unique function of storage. The S vs. O relationship for the river reach under consideration is graphed below.
What are the types of flood routing?
Contents
- 1 Hydraulic (or distributed) routing.
- 2 Hydrologic (or lumped) routing.
- 3 Semi-distributed routing.
- 4 Flood routing.
- 5 Runoff Routing.
- 7 References.
What is Muskingum Cunge?
The Muskingum-Cunge method is a method of flood routing that improves on the classical Muskingum method (Chow, 1959) by using physical-numerical principles established by Cunge to calculate the routing parameters (Cunge, 1969).
What is modified Puls method?
The Modified Puls routing method, also known as storage routing or level-pool routing, is based upon a finite difference approximation of the continuity equation, coupled with an empirical representation of the momentum equation (Chow, 1964; Henderson, 1966).
What is Muskingum parameter?
The parameter X of the Muskingum method is a physical parameter that reflects the flood peak attenuation and hydrograph shape flattening of a diffusion wave in motion. In this paper, the historic process that hydrologists have undergone to find a physical explanation of this parameter is briefly discussed.
What is reservoir flood routing?
Flood routing is the process of determining the timing and shape of a flood wave. In a reservoir, this is done by accounting for the storage available in the reservoir, whereas in a channel, the flood wave is observed at successive points along a river.
What are the input data required for Muskingum routing?
Data
| Field in Data Entry Form | Description |
|---|---|
| K Parameter | Muskingum k parameter (s) |
| X Parameter | Muskingum x parameter |
| Specify Velocity Using | For “VQ Power Law”, enter the coefficients a, b, V0 and Q0 to define the flow-velocity relationship; otherwise (VQ Rating), enter the relationship at discrete points in the supplied table |
What is index flow in HEC HMS?
In the HEC-HMS 4.3 Users Manual I found the following text: “The index flow should represent the expected maximum flow in the reach”. So could you put in some arbitrary flow for the index flow, run the model, look at the peak flow at the upstream end of the reach, enter that as the index flow and run it again.
What is reservoir routing?
Reservoir routing is actually simply the numerical solution of a differential equation. Any standard method can be used, and all are simpler than the traditional method. The presentation incorporates the case where reservoir outflow may be varied by control of valves or spillway gates.
What is level pool routing?
Level pool routing is a flow routing procedure used to determine the outflow hydrograph from a level pool or reservoir (e.g., a detention basin) given an inflow hydrograph and the storage-outflow characteristics of the reservoir.
