Abstract
A method is described for modelling the distribution of velocity across a river cross-section in a straight reach in uniform, steady flow. The method uses a finite element model based on a simplified Navier-Stokes equation and a mixing length hypothesis. The model is applied to a representative river reach and a comparison is made with velocity gaugings in the reach. Good agreement is shown where flow conditions match the assumptions on which the model is based.
| Original language | English |
|---|---|
| Pages (from-to) | 155-162 |
| Number of pages | 8 |
| Journal | New Zealand Journal of Marine and Freshwater Research |
| Volume | 31 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 1997 |
| Externally published | Yes |
Keywords
- Finite element method
- Navier Stokes equations
- River gauging
- Velocity distributions