1. CE 230-Engineering Fluid Mechanics Lecture # 9 & 10 Hydrostatic forces on plane surfaces

2. Consider the force that act on the shown plane surface Distribution of hydrostatic pressure on a plane surface

3. For the tank with width = 2m a) Determine HF on surface BC b) Determine HF on surface AB 3 m 4 m water

4. Location of center of pressure From moment equilibrium we will show that y cp = ŷ +Ī / (ŷ A) or y cp - ŷ = Ī / (ŷ A)

5. 3.61 gate is 4x12 ft. what is minimum F to keep gate closed.

6. 3.62 Square gate. Find reactions at A Neglect gate weight.

7. Example 3.12