One-dimensional flow over a plane : criteria for kinematic wave modelling
By: Pearson, C. P. (Charles Patrick).
Material type:
BookSeries: Hydrology Centre internal report ; WS1282.Publisher: Christchurch : Hydrology Centre, 1988Description: 17 p.Subject(s): KINEMATICS
| FLUID FLOW | WATER FLOW | WAVES | MATHEMATICAL MODELS | ONE DIMENSIONAL FLOW | MODELLING | CATCHMENTS| Item type | Current location | Call number | Copy number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
ABSTRACT
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NIWA BIBLIOGRAPHY | 1 | Available | 60514-1001 |
16 refs; 7 figs. Restricted indefinitely for DSIR use only
Criteria for using the kinematic wave approximation to the Saint Venant equations for shallow water flow are examined. Attention is focussed on the steady-state upstream depth, which, for the "no flow over the upstream boundary" boundary condition, is generally non-zero (proven mathematically) but in the kinematic approximation is always zero. Contours of dimensionless steady-state upstream depth over a two parameter plane are used to obtain a further criterion for kinematic wave modelling. The new criterion is consistent with, and improves upon, the existing criteria. Application of the criteria to catchment modelling is demonstrated and discussed. (auth)
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