1.7. Power Ratio

Try these first

1. 1.

   What is the formula for the Froude number?

   Hint

   Think about how velocity relates to gravitational effects.

2. 2.

   What does the discharge ratio indicate?

   Hint

   Look at the relationship between area and velocity.

3. 3.

   What does the Froude number relate?

   • Inertial and gravitational forces
   • Pressure and temperature
   • Density and viscosity

   Hint

   Think about what drives fluid motion.

4. 4.

   Is the force ratio always equal to one in distorted models?

   • True
   • False

   Hint

   Consider how modeling techniques alter outputs.

5. 5.

   A prototype sluice gate measures 6 m and the model's length is 1.5 m. If the prototype experiences a force of 800 N, calculate the force exerted in the model.

   Hint

   Consider how forces scale with length in hydraulic systems.

6. 6.

   If a river model has a time ratio of 1/10 and the prototype's period is 20 hours, what is the model's corresponding time period?

   Hint

   Utilize the time ratio as a scaling factor for periods.