calculation problem
 

i analyze a flow passage.
but the problem is energy at the outel comes greater then energy at inlet please tell me what to do.
i gave parameters as
velocity inlet 3m/s
pressure outlet 20000pa

value of inlet pressure calculated is too small that it cannot satisify the bernulli equation.
plz help me

how did you got this 20000Pa ,is it pressure drop or gauge pressure or absolute pressure?

calculation problem
 

Actually i want to calculate the energy loss in half symmetic nozzle with a half sphere inserted in flow to produce restriction
inlet condtions
Din=16m
Vin=3m/s
Outlet condtion
Dout= 6.5m
Pressure out=20000pa (just a guess just to see what will be the value of inlet pressure for this outlet pressue but i think is whould be large enough to satisify the conservation of momentum.)
i got following results at cerntral axis
Vout=18m/s
Pressure inlet=186900Pa
Plz tell me how to calculate the energy loss due to (friction, flow recirculation etc.)