Physical Modeling of Hydraulic Flows Hydraulic problems : • Analytical solutions usually not existing • Numerical solutions CFD huge computation demands for large-scale turbulent flows The most reliable solutions physical modeling. Also can test the design and the operation at a relatively small cost. A physical model needs to meet full flow similarities with the prototype geometric similarity, kinematic similarity and dynamic similarity. Therefore, may result in distorted models.
Dartmouth dam spillway model.
Distorted model of River Indus, Sheung Shui. Horizontal 1/200, vertical 1/25. Model of natural river (1983), model of trained river (1989).