Effects of laminar boundary layer on a model broad-crested weir
Abstract
An approximate method for the analysis of flow with a laminar boundary layer over a model broad crested weir is described. The method was used to demonstrate the effects of the laminar boundary layer and the results show that these effects are significant. If the energy is calculated from depth and discharge measurements, large energy losses appear to occur at low flow rates in laboratory experiments. Losses real and apparent, are explained and the methods presented may be used to estimate the correct energy values.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1981
- Bibcode:
- 1981STIN...8324804I
- Keywords:
-
- Boundary Layer Flow;
- Dams;
- Depth;
- Flow Velocity;
- Laminar Boundary Layer;
- Laminar Flow;
- Spilling;
- Finite Element Method;
- Hydraulic Analogies;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer