A combination of analytical and numerical methods shows that the application of a pseudosteady-state solution to a steady-state problem invariably overpredicts the dimensionless productivity index (JD ...

Chezy and Manning developed equations that are used to determine the average volumetric flowrate in open channels. This article explains a laboratory method that was developed and tested to further ...

Oil field operators can use several practical equations for calculating flow rates of natural gas through venturi gas-lift valves. For critical flow, this analysis derived such equations from a ...