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Submitted Chris Haslego, Nov 21 2011 11:21 AM | Last updated Nov 21 2011 01:29 PM




Category: Fluid Dynamics
Question: How can one determine if a pipe is running full or is at its sealing flowrate?
Keywords: sealing,flow,flowrate,determining,full,pipe
Answer: The following equation gives a quick check to determine the sealing velocity for a pipe:Q = 10.2 D 2.5where Q is the liquid flowrate in gallons per minute D is the pipe diameter in inchesIf the current flowrate in the pipe is less than the value calculated for Q above, then the pipe is below its sealing flowrate or is said to be partially flooded. In order to calculate the velocity in this pipe you must use a set of flow area equation presented in Chemical Engineering magazine (March 1998, p. 129). The above equation is valid for liquid flow through a horizontal pipe.


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