Homework Statement

- I have a hole in the bottom of a ship and i need to know the size of the hole. I cannot get at the hole but i kn ow the flow through it is 700gpm and the depth of the sea water to the hole is 33.66 feet (15.03 psi)

The Attempt at a Solution

andrevdh
Homework Helper
I would think that the flow is driven mainly by the difference in the water level inside and outside of the boat. So in order to calculate the size of the hole one also need this measurement.

Last edited:
Shooting Star
Homework Helper

Homework Statement

- I have a hole in the bottom of a ship and i need to know the size of the hole. I cannot get at the hole but i kn ow the flow through it is 700gpm and the depth of the sea water to the hole is 33.66 feet (15.03 psi)

The Attempt at a Solution

You have not shown any attempt at a solution.

Use Bernoulli's law.

15.03 psi is the pressure difference given. You know P=F/A. As you know the height and the rate of flow, you can find out the force applied. That leaves area as the only unknown, which is what you require.

Shooting Star
Homework Helper
15.03 psi is the pressure difference given. You know P=F/A. As you know the height and the rate of flow, you can find out the force applied. That leaves area as the only unknown, which is what you require.

Could you please show me the actual calculation?