- #1

tomtomtom1

- 160

- 8

- Homework Statement:
- What is Pressure Energy & How to Calculate it?

- Relevant Equations:
- What is Pressure Energy & How to Calculate it?

Hello all

I was hoping i could pick someones brain regarding Pressure Energy.

I was given the following piece of information that describes the Pressure Energy equation:-

However i am not certain what each term means?

Would it be correct to state:-

Pressure Energy = Fluid Density * Area * Length

OR

Pressure Energy = Pressure * Area * Length

(The P could relate to pressure or density)

But i am not convinced that this is correct. The way i attempted to derive a pressure energy equation was by doing the following:- :-

Pressure = Force /Area

Since; Force * Distance = Work, i multiplied both upper and lower parts of the fraction by Distance

Pressure Energy = Force * Distance /Area * Distance

Pressure Energy = Work / Area * Distance

Since Area * Distance = Volume

I get:-

Pressure Energy = Work / Volume

But my pressure energy equation does not look like anything like the equation that was given to me.

Not sure what is going on?

Any ideas?

Thanks

I was hoping i could pick someones brain regarding Pressure Energy.

I was given the following piece of information that describes the Pressure Energy equation:-

However i am not certain what each term means?

Would it be correct to state:-

Pressure Energy = Fluid Density * Area * Length

OR

Pressure Energy = Pressure * Area * Length

(The P could relate to pressure or density)

But i am not convinced that this is correct. The way i attempted to derive a pressure energy equation was by doing the following:- :-

Pressure = Force /Area

Since; Force * Distance = Work, i multiplied both upper and lower parts of the fraction by Distance

Pressure Energy = Force * Distance /Area * Distance

Pressure Energy = Work / Area * Distance

Since Area * Distance = Volume

I get:-

Pressure Energy = Work / Volume

But my pressure energy equation does not look like anything like the equation that was given to me.

Not sure what is going on?

Any ideas?

Thanks