# When do you use absolute pressure in fluid mechanics?

Jul 22, 2022

You use absolute pressure in fluid mechanics when you want to determine the force exerted by a fluid on a solid object. The absolute pressure is the pressure exerted by the fluid on the object, plus the atmospheric pressure.

## Other related questions:

### Q: Where do we use absolute pressure?

A: Absolute pressure is used in many different settings, including in weather reports, scuba diving, and in measuring atmospheric pressure.

### Q: What is absolute pressure fluid mechanics?

A: The absolute pressure of a fluid is the pressure of the fluid relative to a perfect vacuum. In other words, it is the pressure of the fluid in a system where the atmospheric pressure is zero.

### Q: Why do we measure absolute pressure?

A: Absolute pressure is a measure of the force per unit area exerted by a fluid on a surface.

### Q: How do you know if pressure is absolute or gauge?

A: If the pressure is measured with respect to atmospheric pressure, it is said to be gauge pressure. If the pressure is measured with respect to a perfect vacuum, it is said to be absolute pressure.