Filled the reservoir with water and defined the control volume (point 1 and point 2) to obtain the jet exit velocity.

He measured the height of the fluid layer in the reservoir, and positioned the pressure and velocity gauges where he judged it to be important for his control volume, point 1 is on a surface where v1 can be neglected in relation to v2, as the area will be much greater at point 1 than at point 2. And the Pressure at 1 and 2 is the pressure atm where in Bernoulli's equation it can be canceled.

Opening the reservoir gate asks to find the exit velocity of the fluid in the reservoir mathematically applying the Bernoulli equation and making coherent analyzes of the variables that can be neglected, also obtain the reservoir flow.

The speed meter was added at the jet exit and at the end compare the results found mathematically by applying the Bernoulli equation with the speed value obtained in the simulator.

z1+2gv12+p1=z2+2gv22+p2