1.8. Distorted Models

Try these first

1. 1.

   What is a Froude Number?

   Hint

   Think about gravity's role in fluid flows.

2. 2.

   Define a distorted model.

   Hint

   Look at how a model might be different from its prototype.

3. 3.

   What is the relationship between the Froude number of model and prototype?

   • They must be equal
   • They can differ
   • Not applicable

   Hint

   Consider gravity's impact on the flows in both cases.

4. 4.

   True or False: Distorted models aim for perfect geometric similarity.

   • True
   • False

   Hint

   Reflect on the limitations of space and materials.

5. 5.

   In a river study, if the horizontal scale is 1/250 and the vertical scale is 1/100. Calculate the expected flow discharge given a prototype discharge of 300 m³/s. Include considerations for the differences in scales.

   Hint

   Make sure you cube and apply the ratios correctly to solve.

6. 6.

   When modeling a dam, the height is distilled to 1/50. Discuss how this affects the stress distribution on the dam's foundation compared to a full size if the vertical load remains constant.

   Hint

   Look for stress distribution differences across the scaled height.