Because the use of an orifice plate in flow measurement is very common and the theory behind it is very important. If you worked with theorems and equipment like this everyday (as i do), then you would care as well.
@igehring I am guessing that the each air molecule will have different velocity profile along the length of the venturi depending on the source of the driving force.
Can the region/s where the flow expansion begins to expand again, ie after some point past or within the turbulence be expressed mathematically in the orifice plate model? Can the distance past the orifice plate of turbulence be measure/calculated based upon the diameter of the pipe and the diameter and geometry of the orifice itself, ie to calculate the point at which turbulence is at it's lowest?
help me think here please ... I am trying not to measure air flow by blowing it through the venturi , but, instead, sucking it (cause Im using a vaccum pump instalation). By blowing air through the left side (A1), or sucking air though the right side, I have totaly different measurements...
hey random question,but after been given the coefficients of drag i was asked to work out the mass flow rate of a Venturi tube and next question was connected to a orifice plate tube,it asked me to work out the change in pressure of the orifice plate.I didn't use coefficients of drag to work out (p1-p2) but only velocity,is that right or do i have to incorporate the drag somehow?
I think due the fact that the diameter of the hole in a orifice can be easily adjusted as to whether in a venturi you'd have to get a complete new venturi meter. i guess.
Because the use of an orifice plate in flow measurement is very common and the theory behind it is very important. If you worked with theorems and equipment like this everyday (as i do), then you would care as well.
why is orifice out flow velocity is proportional to the square root of the head explain?
@igehring I am guessing that the each air molecule will have different velocity profile along the length of the venturi depending on the source of the driving force.
Can the region/s where the flow expansion begins to expand again, ie after some point past or within the turbulence be expressed mathematically in the orifice plate model? Can the distance past the orifice plate of turbulence be measure/calculated based upon the diameter of the pipe and the diameter and geometry of the orifice itself, ie to calculate the point at which turbulence is at it's lowest?
help me think here please ... I am trying not to measure air flow by blowing it through the venturi , but, instead, sucking it (cause Im using a vaccum pump instalation). By blowing air through the left side (A1), or sucking air though the right side, I have totaly different measurements...
hey random question,but after been given the coefficients of drag i was asked to work out the mass flow rate of a Venturi tube and next question was connected to a orifice plate tube,it asked me to work out the change in pressure of the orifice plate.I didn't use coefficients of drag to work out (p1-p2) but only velocity,is that right or do i have to incorporate the drag somehow?
+dangis jakutis whoops i meant coefficients of discharge
what is the cause of permanent pressure loss in orifice meter and how is it improved in venturi meter?
both have pressure loss. but the one with an orifice plate has a lot of turbulence, so it's not as efficient and the venturi tube, but it's cheaper
What is relationship between Q theoretical and Q actual?
explain the orifice types,working and definition
Even though the energy loss in orifice plate is more but, why its famously used in Industries then V Tubes?
I think due the fact that the diameter of the hole in a orifice can be easily adjusted as to whether in a venturi you'd have to get a complete new venturi meter. i guess.
@MrRONPITTS The first two minutes takes about Bernoulli Equation.
thank you sir
Good!
thanksssssssssssss alot
Gotta back away from the microphone a bit, man. Good video otherwise!
why is orifice out flow velocity is proportional to the square root of the head explain?
why is orifice out flow velocity is proportional to the square root of the head explain?
why is orifice out flow velocity is proportional to the square root of the head explain?