For example, a fire hydrant shoots water at 200 liters a second, how to convert this to its velocity?
2006-11-09 02:59:20 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Let
Q = volume flow rate in Litre/sec,
D = diameter of the nozzle in cm and
V = velocity of water in metre/sec.
Then, V = (40*Q)/ [pi*(D^2)]
where pi = 3.14
2006-11-09 03:19:18 · answer #1 · answered by psbhowmick 6 · 2⤊ 0⤋
You need the diameter of the outlet. then you divide the volume by the cross sectional area of the cylinder of water that is shooting out and you get the length of the water cylinder that gets ejected. You will need to make sure that you have the area of the outlet pipe in cm2 so that when you divide liters by the area you get cm/sec which you can then convert to m/sec by dividing it by 100, since there are 100 cm per meter.
2006-11-09 03:05:04 · answer #2 · answered by anon 5 · 0⤊ 1⤋
velocity (m/s) = Q(m3/s) / Nozzle Area (m2)
2006-11-09 03:32:55 · answer #3 · answered by Dr. J. 6 · 0⤊ 0⤋