Question

a liquid is is stream line flow through a pipe of non-uniform crossection.prove the sum of its kinetic energy,pressure energy and potential energy per unit volume remains constant???​

Answer 1

Answer:

Explanation:

Consider an incompressible non – viscous liquid entering the cross-section A1 at a height h1 at A with a velocity v1 and coming out at a height h2 at B with velocity v2.      

The P.E. and K.E. increases since h2 and v2 are more than h1 and v1 respectively. This is done by the pressure doing work on the liquid. If P1 and P2 are the pressures at A and B, then for a small displacement at A and B,        

Answer 2

Hieeee...✌❣

Acc. to this theorem, for the streamline flow of an ideal liquid, the total energy that is sum of pressure energy, potential energy and kinetic energy per unit mass remains constant at every cross-section throughout the flow. m = Mass of liquid crossing per second through any section of tube.