Piping and Valves Knowledge: [Daily Question] 2011.01.11
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True or False: The higher the pressure inside a pipe, the faster the flow velocity of the fluid within it, and consequently the greater the flow rate, as the flow rate depends only on the flow velocity and the pipe diameter. 1) All participants will receive a reward (usually 5 points for correct answers, 3 points for incorrect ones, 1 point for unhidden answers; additional points may be given to those who provide detailed discussions) ； 2) Please hide your replies; the method to do this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. 3) Answer: Wrong. Flow rate is related to pressure difference, not to the magnitude of pressure
No, because when the resistance increases, the pressure inside the tube also increases.
Reply 1# superkiller0305 Wrong. Because flow rate refers to the amount of fluid that passes through any cross-section of a pipe per unit of time. Among them, the one calculated based on fluid volume is called volumetric flow rate ； When expressed in terms of fluid mass, it is called mass flow rate. The volume of a gas changes with pressure and temperature; therefore, the volumetric flow rate of the fluid changes as well, but its mass flow rate and mass flow velocity remain constant.
Wrong, the flow rate has nothing to do with the pressure level
Answer: Wrong. A higher pressure inside a pipe does not mean that the flow velocity of the fluid within it is faster.
Wrong, flow rate has nothing to do with pressure magnitude; it is related to the pressure difference.