The expression for the velocity potential function () is given by
= - (xy3/3)-x2+ (x3y/3) + y2 where x, y are function of space.
(i) Calculate velocity component along x and y direction.
(ii)Show that stream function indicates a possible case of flow.
Define: Velocity potential function ().Stream Function() , Equipotential Line
A pelton wheel is to be designed for working under a head of 380 meter and
runs at 750 r.p.m. The turbine developed a shaft power of 11,772 KW. The
overall efficiency of the turbine is 85 %, Jet ratio=6, co-efficient of velocity =
0.9.85 and speed ratio = 0.45. Determine (i) Runner diameter (ii) Jet diameter
(iii) Number of jets required (iv) Number of buckets on the wheel
Define : Hydraulic Grade line(HGL), Total Energy Line (TEL)
A centrifugal pump delivers water against a net head of 14.5 meters and a
designed speed of 1000 rpm. The vanes are curved back to an angle of 300 with
the periphery. The impeller diameter is 300 mm and outlet width is 50 mm.
Determine the discharge of the pump if manometric efficiency is 95%.
Write down difference between centrifugal pump and reciprocating pump.