SOC 202 Lecture Notes - Lecture 3: Piezometer, Flow Coefficient, Volumetric Flow Rate
22 Nov 2014
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Document Summary
To determine the changes of hydraulic and energy gradients of a flow through a venturi and to calculate the flow coefficient, the bernoulli s equation was put into the format where each energy is in terms of units of meters. This was done for two separate flow rates where the first flow rate allowed maximum flow and the second flow rate provided a different of half between the first piezometer reading and the throat piezometer reading. While the hydraulic gradients (hg) are the piezometer readings from position a to g, the energy gradients (eg) were calculated by the addition of the kinetic head ( The eg for position a to g was found to be 0. 513m, 0. 506m, 0. 494m, 0. 454m, 0. 454m, 0. 455m, 0. 455m for the first flow rate and 0. 519m, 0. 517m, 0. 510m, 0. 489m, 0. 487m, 0. 487m, 0. 486m for the second flow rate. From the values itself, it can be seen that as the flow moves from position a to g, energy decrease.
