Fluid dynamics problem??

Question

a Horizontal nozzle reduces from 100mm bore diameter at inlet to 50mm at exit. it carries liquid of density 1000kg/m^3 at a rate of 0.05m^3 / s. the pressure at the wide end is 500kpa (gauge). calculate the pressure at the narrow end neglecting friction?

Any ideas?

Answer 1

Use Bernouli's law.

It is an expression of the law of conservation of energy, so the energy at any point in the pipe is the same.

The terms sum the kinetic energy, potential energy, and energy due to pressure.

Use the areas to calculate the velocity, since Q = A * V.

Answer 2

does the pressure not stay the same and the velocity change.

ofcourse an increase in velocity will result in a decrease in pressure

Answer 3

oh boy oh boy , wish i found someone to solve my Fluid mechanics sheets too , but wait that was 4 yrs ago.

c'est quatre annees   ==> 4 ans.

est bonne annee , bonne nuit monseiur