CONSERVATION OF MECHANICAL ENERGY

1. CONSERVATION OF MECHANICAL ENERGY • FRICTIONLESS FLOW ALONG A STREAMLINE • MECHANICAL ENERGY BALANCE ON A UNIT MASS OF FLUID • POTENTIAL ENERGY • KINETIC ENERGY • FLOW ENERGY T W DAVIES

2. THE BERNOULLI EQUATION • THE SUM OF THE THREE FORMS OF MECHANICAL ENERGY PER UNIT MASS REMAINS CONSTANT IN A FRICTIONLESS FLOW p +  u2/2 +  gy = constant • p/ ( g) + u2/2g + y = constant • p/ + u2/2 + gy = constant T W DAVIES

3. BERNOULLI APPLICATIONS • FLOW MEASUREMENT • PITOT TUBE (POINT VELOCITY) • VENTURI METER (flow rate in a pipe) • ORIFICE PLATE (flow rate in a pipe) • OPEN CHANNELS, WEIR FLOW (flow rate) T W DAVIES

4. BERNOULLI APPLICATIONS • SOLUTION OF FLOW PROBLEMS • Example - THE SIPHON • Example - THE FOUNTAIN T W DAVIES