Energy equation and continuity equation mismatch

[nirmaljoshi]

A pipe is discharging from H=100m to an open atmosphere. The available discharge at inlet is 0.4m3/s

1. The bernauli's equation tells v=sqrt(2*g*H), neglecting any losses in the pipe, v=~44m/s
2. continuity equation tells v=Q/A, say diameter of pipe=0.3m, v=~5.65m/s

which is correct?

 

[russ_watters]

Are you saying the open end of the pipe is 100m above ground?

Which do you think is correct and why?