How do you calculate hydrostatic pressure?

Answer 1

Do you know what a manometer is? OK, sorry, I didn't mean to be short with you, but I got cut off. What we need to do is mearuse the pressure before the restriction and then after. If it is just water, then simple gauges can do that just measuring the pressure drop. In PSI or whatever. In gases we do need to pull out our manometer and measure before and afte. This can be water, Mercury, or any fluid. Sorry, I'm going to have to work on this later. This system is screwing up.

Answer 2

P = ρgh + Pa Where: P is the hydrostatic pressure ρ is the density of the fluid g is the acceleration due to gravity h is the height of liquid above point of interest Pa is the external atmospheric pressure.

Answer 3

A manometer measures the pressure difference between two points. The difference in height of the liquid is the hydrostatic head. This pressure difference can be found using Bernoilli's equation. The simplified version for use with manometers is shown below:

(P2-P1)/rho+g/gc*dz=0

P2= pressure at point 2
P1= pressure at point 1
rho=density of the fluid in the manometer
g= gravitational acceleration= -9.81 m/s^2=32.174 ft/s^2 on earth at sea level
dz= change in height read from the manometer
gc= gravitational conversion factor*= +1kg*m/(N*s^2) +32.174 lbm*ft/(lbf*s^2)

*note that gc is sometimes omitted from the equation and is simply a unit accounting device (but is especially necessary for use with English units)

Answer 4

you need to look at the Periodic Table and then calculate the scientific numbers. hope that was very helpful as i had to do this for college work.