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LauraMorrison
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Hi, I am a first year studying mechanical engineering and I am having trouble understanding bernoulli equation. This is the first question in the tutorial and I can't seem to get the right answer.
Water flows through the pipe contraction shown
in the figure below. For the given 0.2 m
difference in manometer level, determine the
flowrate as a function of the diameter of the small
pipe, D.
(Ans: 1.56D2 m3/s)
From the solution given by my lecturer, it says that z1 = z2 .. this will probably sound really stupid but what height does z actually represent?
I know that there is a stagnation point at the pitot tube coming from the manometre so this means that v1 = 0 .. is that correct? The solutions also say that p1 = [itex]\gamma[/itex]h1 .. how can this be? I thought that pressure = Force x Area?
If someone could explain the answer to me it would really help a lot.
Thanks!
Water flows through the pipe contraction shown
in the figure below. For the given 0.2 m
difference in manometer level, determine the
flowrate as a function of the diameter of the small
pipe, D.
(Ans: 1.56D2 m3/s)
From the solution given by my lecturer, it says that z1 = z2 .. this will probably sound really stupid but what height does z actually represent?
I know that there is a stagnation point at the pitot tube coming from the manometre so this means that v1 = 0 .. is that correct? The solutions also say that p1 = [itex]\gamma[/itex]h1 .. how can this be? I thought that pressure = Force x Area?
If someone could explain the answer to me it would really help a lot.
Thanks!
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