What is the formula for manometer?

P = ρ * g * h , where, P is the pressure the liquid (toothpaste) experiences at height h; ρ (Greek letter rho) is the liquid’s density; and.

How is Venturi meter flow calculated?

Venturi Flow Equation and Calculator

Preview: Venturi Flow Calculator.
and.
Therefore:
and.
Qmass = ρ · Q. Where: Q = volumetric flow rate (m3/s, in3/s) Qmass = Mass flowrate (kg/s, lbs/s) A1 = area = Π · r2 (mm2, in2) A2 = area = Π · r2 (mm2, in2) r1 = radius inlet at A1 (mm, in) r2 = radius inlet at A2 (mm, in)

What is the formula of pressure head?

hp—the pressure head = u/γw—the fluid pressure divided by the unit weight of the fluid. ht—the total head = he + h.

How do you calculate the pressure of a manometer?

U-tube manometer – differential pressure Equation. p = p 1 – p 2 = ( p m – p f) g h. Where: p 1 – p 2 = Pressure Difference. p m = density of manometer fluid (kg/m 3 , lb/in 3) pf = density of measured fluid. (kg/m 3 , lb/in 3) h = manometer reading or height difference (m, in)

Why is it called the differential manometer equation?

The resulting equation is called the differential manometer equation because a differential manometer is used to measure a pressure difference or differential. Notice that the gravity forces acting on the two legs of fluid are different only because the manometer fluid is MORE DENSE than the water.

What is a closed end manometer?

1. Closed End Manometers: As you can see from the picture given below one end of manometer is open to gas container and one of them is closed. x and y points in the picture are at same level, thus pressures acting on these points are equal. Pressure at point x is the pressure of gas and pressure at point y is the pressure of mercury at h height.