Submerged Gates: Summary

The answers to the ConcepTests are given below and will open in a separate window. 
Key points from this module:
  • Hydrostatic pressure is only a function of the water height, not the angle of the gate.
  • Hydrostatic pressure increases linearly as water depth increases.
  • The force due to water is perpendicular to a surface, independent of its orientation.
From studying this module, you should now be able to:
  • Calculate the forces on a submerged surface.
  • Calculate the center of pressure on a surface.
  • Determine forces needed to hold a rotating or hinged gate in place.
Prepared by Janet deGrazia, Department of Chemical and Biological Engineering, University of Colorado Boulder